TY  - CONF
AU  - Rajičić, Bratislav
AU  - Maslarević, Aleksandar
AU  - Bakić, Gordana
AU  - Maksimović, Vesna
AU  - Đukić, Miloš
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7775
AB  - Failures in industrial plants, which operate under extreme conditions, could occur after a short time of exploitation. Erosion wear of materials is caused by the relative movement of solid particles and the surfaces of components. Such erosive wear can lead to the failure of industrial components in a very short time and/or a sharp decline in the structural integrity of industrial equipment. For example, the wear of the ash disposal system in a coal-burning thermal power plant, due to impact of ash particles with a high content of mineral residues, is a very common case of failure and outages in the operation of such industrial systems.
Two high chromium cast irons (HCCI) were tested to determine the erosion wear. These alloys contain 15% Cr and 25% Cr, and it was tested in as-cast and after heat treatment (annealing). A specially designed installation was used for the gas blast sand erosion test. Type of erodent was foundry quartz sand. Erosion tests were done with high erodent particle velocity (90 m/s) and high erodent feed rate (3000 g/min). This conditions represents those similar to extreme wear conditions of some components of thermal power plants using pulverized high mineral content coals.
Microstructural characterization was done at samples before and after erosion tests, Fig. 1. The main results indicate that matrix plastic deformation and distribution of carbide phase have a significant contribution to erosion resistance of HCCI alloys in such conditions.
PB  - Vinča Institute of Nuclear Sciences - National Insittute of the Republic of Serbia, University of Belgrade
PB  - Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)
C3  - Book of Abstracts - 2nd International Conference on Innovative Materials in Extreme COnditions
T1  - Erosion wear of HCCI alloys
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7775
ER  - 

@conference{
author = "Rajičić, Bratislav and Maslarević, Aleksandar and Bakić, Gordana and Maksimović, Vesna and Đukić, Miloš",
year = "2024",
abstract = "Failures in industrial plants, which operate under extreme conditions, could occur after a short time of exploitation. Erosion wear of materials is caused by the relative movement of solid particles and the surfaces of components. Such erosive wear can lead to the failure of industrial components in a very short time and/or a sharp decline in the structural integrity of industrial equipment. For example, the wear of the ash disposal system in a coal-burning thermal power plant, due to impact of ash particles with a high content of mineral residues, is a very common case of failure and outages in the operation of such industrial systems.
Two high chromium cast irons (HCCI) were tested to determine the erosion wear. These alloys contain 15% Cr and 25% Cr, and it was tested in as-cast and after heat treatment (annealing). A specially designed installation was used for the gas blast sand erosion test. Type of erodent was foundry quartz sand. Erosion tests were done with high erodent particle velocity (90 m/s) and high erodent feed rate (3000 g/min). This conditions represents those similar to extreme wear conditions of some components of thermal power plants using pulverized high mineral content coals.
Microstructural characterization was done at samples before and after erosion tests, Fig. 1. The main results indicate that matrix plastic deformation and distribution of carbide phase have a significant contribution to erosion resistance of HCCI alloys in such conditions.",
publisher = "Vinča Institute of Nuclear Sciences - National Insittute of the Republic of Serbia, University of Belgrade, Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)",
journal = "Book of Abstracts - 2nd International Conference on Innovative Materials in Extreme COnditions",
title = "Erosion wear of HCCI alloys",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7775"
}

Rajičić, B., Maslarević, A., Bakić, G., Maksimović, V.,& Đukić, M.. (2024). Erosion wear of HCCI alloys. in Book of Abstracts - 2nd International Conference on Innovative Materials in Extreme COnditions
Vinča Institute of Nuclear Sciences - National Insittute of the Republic of Serbia, University of Belgrade..
https://hdl.handle.net/21.15107/rcub_machinery_7775

Rajičić B, Maslarević A, Bakić G, Maksimović V, Đukić M. Erosion wear of HCCI alloys. in Book of Abstracts - 2nd International Conference on Innovative Materials in Extreme COnditions. 2024;.
https://hdl.handle.net/21.15107/rcub_machinery_7775 .

Rajičić, Bratislav, Maslarević, Aleksandar, Bakić, Gordana, Maksimović, Vesna, Đukić, Miloš, "Erosion wear of HCCI alloys" in Book of Abstracts - 2nd International Conference on Innovative Materials in Extreme COnditions (2024),
https://hdl.handle.net/21.15107/rcub_machinery_7775 .

TY  - CONF
AU  - Pavkov, Vladimir
AU  - Bakić, Gordana
AU  - Maksimović, Vesna
AU  - Cvijović-Alagić, Ivana
AU  - Maslarević, Aleksandar
AU  - Rajičić, Bratislav
AU  - Milošević, Nenad
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7769
AB  - The fracture of engineering materials is always an undesirable phenomenon, which primarily can endanger human lives, create economic losses, and lead to downtime and unavailability of mechanical parts. The main drawback that still prevents the broader use of ceramic and glass-ceramic materials is the tendency to brittle fracture due to extremely low toughness. Due to the appearance of cracks, the mechanical properties and structure of the material degrade irreversibly, which can lead to catastrophic failure of the mechanical element or construction. This drawback can be overcome by synthesizing novel composite materials with glass-ceramic matrix and metal reinforcement with improved fracture toughness.
This research examined two materials: a glass-ceramic material and a composite material based on glass-ceramic-metal. The glass-ceramic material is obtained from andesite basalt powder, while the glass ceramic-metal composite is made from the glass-ceramic matrix of andesite basalt powder and a metal reinforcement of stainless steel powder in the content of 20 wt%. The aggregate of andesite basalt from Serbia was used as the starting natural raw material for obtaining the glass-ceramic matrix. The austenitic stainless steel powder of the commercial grade Surfit TM 316L was used as a reinforcement. Both materials were obtained using powder metallurgy, which consisted of the following phases: crushing of andesite basalt aggregate, sieving of the stainless steel powder, homogenization of powder and binder, cold uniaxial pressing of the powder, cold isostatic pressing of green compact and sintering as the final phase to obtain a high-density solid sample.
The andesite basalt, and 316L stainless steel powder were characterized using a scanning electron microscope and X-ray diffraction method. The sintered samples of glass-ceramic and glass-ceramic-metal were characterized with an optical light microscope, scanning electron microscope, and Vickers hardness test.
Based on the obtained results, it can bu concluded that the presence of metallic particles in the glass-ceramic matrix leads to a slight decrease in hardness while contributing to an increase in the materials fracture toughness by about 33% [1]. During crack propagation in the glass-ceramic matrix, different crack particle interactions were observed: crack stops, deflects, or bridgings when encountering the spherical metal particle. These interaction phenomena and mechanisms of crack propagation in the glass-ceramic-metal composite lead to an increase of crack propagation resistance.
PB  - Vinča Institute of Nuclear Sciences - National Insittute of the Republic of Serbia, University of Belgrade
PB  - Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)
C3  - Book of Abstracts - 2nd International Conference on Innovative Materials in Extreme COnditions
T1  - The influence of stainless steel particles reinforcement on the fracture toughness of glass-ceramic matrix composite
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7769
ER  - 

@conference{
author = "Pavkov, Vladimir and Bakić, Gordana and Maksimović, Vesna and Cvijović-Alagić, Ivana and Maslarević, Aleksandar and Rajičić, Bratislav and Milošević, Nenad",
year = "2024",
abstract = "The fracture of engineering materials is always an undesirable phenomenon, which primarily can endanger human lives, create economic losses, and lead to downtime and unavailability of mechanical parts. The main drawback that still prevents the broader use of ceramic and glass-ceramic materials is the tendency to brittle fracture due to extremely low toughness. Due to the appearance of cracks, the mechanical properties and structure of the material degrade irreversibly, which can lead to catastrophic failure of the mechanical element or construction. This drawback can be overcome by synthesizing novel composite materials with glass-ceramic matrix and metal reinforcement with improved fracture toughness.
This research examined two materials: a glass-ceramic material and a composite material based on glass-ceramic-metal. The glass-ceramic material is obtained from andesite basalt powder, while the glass ceramic-metal composite is made from the glass-ceramic matrix of andesite basalt powder and a metal reinforcement of stainless steel powder in the content of 20 wt%. The aggregate of andesite basalt from Serbia was used as the starting natural raw material for obtaining the glass-ceramic matrix. The austenitic stainless steel powder of the commercial grade Surfit TM 316L was used as a reinforcement. Both materials were obtained using powder metallurgy, which consisted of the following phases: crushing of andesite basalt aggregate, sieving of the stainless steel powder, homogenization of powder and binder, cold uniaxial pressing of the powder, cold isostatic pressing of green compact and sintering as the final phase to obtain a high-density solid sample.
The andesite basalt, and 316L stainless steel powder were characterized using a scanning electron microscope and X-ray diffraction method. The sintered samples of glass-ceramic and glass-ceramic-metal were characterized with an optical light microscope, scanning electron microscope, and Vickers hardness test.
Based on the obtained results, it can bu concluded that the presence of metallic particles in the glass-ceramic matrix leads to a slight decrease in hardness while contributing to an increase in the materials fracture toughness by about 33% [1]. During crack propagation in the glass-ceramic matrix, different crack particle interactions were observed: crack stops, deflects, or bridgings when encountering the spherical metal particle. These interaction phenomena and mechanisms of crack propagation in the glass-ceramic-metal composite lead to an increase of crack propagation resistance.",
publisher = "Vinča Institute of Nuclear Sciences - National Insittute of the Republic of Serbia, University of Belgrade, Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)",
journal = "Book of Abstracts - 2nd International Conference on Innovative Materials in Extreme COnditions",
title = "The influence of stainless steel particles reinforcement on the fracture toughness of glass-ceramic matrix composite",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7769"
}

Pavkov, V., Bakić, G., Maksimović, V., Cvijović-Alagić, I., Maslarević, A., Rajičić, B.,& Milošević, N.. (2024). The influence of stainless steel particles reinforcement on the fracture toughness of glass-ceramic matrix composite. in Book of Abstracts - 2nd International Conference on Innovative Materials in Extreme COnditions
Vinča Institute of Nuclear Sciences - National Insittute of the Republic of Serbia, University of Belgrade..
https://hdl.handle.net/21.15107/rcub_machinery_7769

Pavkov V, Bakić G, Maksimović V, Cvijović-Alagić I, Maslarević A, Rajičić B, Milošević N. The influence of stainless steel particles reinforcement on the fracture toughness of glass-ceramic matrix composite. in Book of Abstracts - 2nd International Conference on Innovative Materials in Extreme COnditions. 2024;.
https://hdl.handle.net/21.15107/rcub_machinery_7769 .

Pavkov, Vladimir, Bakić, Gordana, Maksimović, Vesna, Cvijović-Alagić, Ivana, Maslarević, Aleksandar, Rajičić, Bratislav, Milošević, Nenad, "The influence of stainless steel particles reinforcement on the fracture toughness of glass-ceramic matrix composite" in Book of Abstracts - 2nd International Conference on Innovative Materials in Extreme COnditions (2024),
https://hdl.handle.net/21.15107/rcub_machinery_7769 .

TY  - CONF
AU  - Dujović, Miloš
AU  - Maslarević, Aleksandar
AU  - Bakić, Gordana
AU  - Srivastava, Ankit
AU  - Radović, Miladin
PY  - 2024
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7745
AB  - A class of ternary layered carbides and nitrides, known as MAX
phases, combines some of the best properties of two distinct
classes of materials: metals and ceramics. Specifically, MAX phases
are stable at high temperatures, resist thermal shock, and some
even form stable and protective oxide layers in oxidizing environments.
Thus, they are excellent candidates for protective coatings
in high-temperature applications. In this context, our focus is on
using kerosene-fueled High-Velocity Oxy-Fuel spraying to deposit
MAX phases onto P91 steel substrates for use as thermal barrier
coatings. The chosen MAX phase for this study is Ti2AlC, which
offers an outstanding oxidation resistance. Our results indicate that
during the spraying procedure, a portion of the MAX phase decomposes,
another portion oxidizes, yet more than half maintains the
initial and desired stoichiometry. Nevertheless, the resulting coating
establishes a stable and robust bond with the steel substrate. In this
presentation, we will discuss the detailed analysis concerning the
relationship between the process, structure, and performance of the
Ti2AlC coating on the P91 steel substrate.
PB  - The American Ceramic Society
C3  - ABSTRACT BOOK - 48th International Conference & Exposition on Advanced Ceramics and Composites
T1  - Application and characterization of a kerosine-fuelled High Velocity Oxy-Fuel (HVOF) Ti2AlC coating on thermally stable P91 steel
SP  - 158
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7745
ER  - 

@conference{
author = "Dujović, Miloš and Maslarević, Aleksandar and Bakić, Gordana and Srivastava, Ankit and Radović, Miladin",
year = "2024",
abstract = "A class of ternary layered carbides and nitrides, known as MAX
phases, combines some of the best properties of two distinct
classes of materials: metals and ceramics. Specifically, MAX phases
are stable at high temperatures, resist thermal shock, and some
even form stable and protective oxide layers in oxidizing environments.
Thus, they are excellent candidates for protective coatings
in high-temperature applications. In this context, our focus is on
using kerosene-fueled High-Velocity Oxy-Fuel spraying to deposit
MAX phases onto P91 steel substrates for use as thermal barrier
coatings. The chosen MAX phase for this study is Ti2AlC, which
offers an outstanding oxidation resistance. Our results indicate that
during the spraying procedure, a portion of the MAX phase decomposes,
another portion oxidizes, yet more than half maintains the
initial and desired stoichiometry. Nevertheless, the resulting coating
establishes a stable and robust bond with the steel substrate. In this
presentation, we will discuss the detailed analysis concerning the
relationship between the process, structure, and performance of the
Ti2AlC coating on the P91 steel substrate.",
publisher = "The American Ceramic Society",
journal = "ABSTRACT BOOK - 48th International Conference & Exposition on Advanced Ceramics and Composites",
title = "Application and characterization of a kerosine-fuelled High Velocity Oxy-Fuel (HVOF) Ti2AlC coating on thermally stable P91 steel",
pages = "158",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7745"
}

Dujović, M., Maslarević, A., Bakić, G., Srivastava, A.,& Radović, M.. (2024). Application and characterization of a kerosine-fuelled High Velocity Oxy-Fuel (HVOF) Ti2AlC coating on thermally stable P91 steel. in ABSTRACT BOOK - 48th International Conference & Exposition on Advanced Ceramics and Composites
The American Ceramic Society., 158.
https://hdl.handle.net/21.15107/rcub_machinery_7745

Dujović M, Maslarević A, Bakić G, Srivastava A, Radović M. Application and characterization of a kerosine-fuelled High Velocity Oxy-Fuel (HVOF) Ti2AlC coating on thermally stable P91 steel. in ABSTRACT BOOK - 48th International Conference & Exposition on Advanced Ceramics and Composites. 2024;:158.
https://hdl.handle.net/21.15107/rcub_machinery_7745 .

Dujović, Miloš, Maslarević, Aleksandar, Bakić, Gordana, Srivastava, Ankit, Radović, Miladin, "Application and characterization of a kerosine-fuelled High Velocity Oxy-Fuel (HVOF) Ti2AlC coating on thermally stable P91 steel" in ABSTRACT BOOK - 48th International Conference & Exposition on Advanced Ceramics and Composites (2024):158,
https://hdl.handle.net/21.15107/rcub_machinery_7745 .

TY  - JOUR
AU  - Rajičić, Bratislav
AU  - Maslarević, Aleksandar
AU  - Bakić, Gordana
AU  - Maksimović, Vesna
AU  - Đukić, Miloš
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4604
AB  - In this study, two high chromium cast irons
(HCCI) with different chromium content (15%Cr and
25%Cr), in as-cast and annealed conditions (heat-treated,
HT), were tested to determine the erosion wear behavior of
these alloys. Erosion tests were done using a gas blast sand
facility with high erodent particle velocity (90 m/s) and high
erodent feed rate, at an impact angle of 45°, which represents
conditions similar to service conditions of some components
of thermal power plants using pulverized high mineral content
coals. To identify erosion mechanisms, microstructural
characterization was done by a scanning electron microscope
on samples before and after erosion tests. Identification of
microstructural phases was done by X-ray diffraction analysis.
The main results of the tests shown in this paper indicate
that matrix plastic deformation and distribution of carbide
phase have a significant contribution to erosion resistance of
HCCI alloys in severe erosion service conditions.
PB  - Springer
T2  - Transactions of The Indian Institute of Metals
T1  - Erosion Wear Behavior of High Chromium Cast Irons
DO  - 10.1007/s12666-022-02860-7
ER  - 

@article{
author = "Rajičić, Bratislav and Maslarević, Aleksandar and Bakić, Gordana and Maksimović, Vesna and Đukić, Miloš",
year = "2023",
abstract = "In this study, two high chromium cast irons
(HCCI) with different chromium content (15%Cr and
25%Cr), in as-cast and annealed conditions (heat-treated,
HT), were tested to determine the erosion wear behavior of
these alloys. Erosion tests were done using a gas blast sand
facility with high erodent particle velocity (90 m/s) and high
erodent feed rate, at an impact angle of 45°, which represents
conditions similar to service conditions of some components
of thermal power plants using pulverized high mineral content
coals. To identify erosion mechanisms, microstructural
characterization was done by a scanning electron microscope
on samples before and after erosion tests. Identification of
microstructural phases was done by X-ray diffraction analysis.
The main results of the tests shown in this paper indicate
that matrix plastic deformation and distribution of carbide
phase have a significant contribution to erosion resistance of
HCCI alloys in severe erosion service conditions.",
publisher = "Springer",
journal = "Transactions of The Indian Institute of Metals",
title = "Erosion Wear Behavior of High Chromium Cast Irons",
doi = "10.1007/s12666-022-02860-7"
}

Rajičić, B., Maslarević, A., Bakić, G., Maksimović, V.,& Đukić, M.. (2023). Erosion Wear Behavior of High Chromium Cast Irons. in Transactions of The Indian Institute of Metals
Springer..
https://doi.org/10.1007/s12666-022-02860-7

Rajičić B, Maslarević A, Bakić G, Maksimović V, Đukić M. Erosion Wear Behavior of High Chromium Cast Irons. in Transactions of The Indian Institute of Metals. 2023;.
doi:10.1007/s12666-022-02860-7 .

Rajičić, Bratislav, Maslarević, Aleksandar, Bakić, Gordana, Maksimović, Vesna, Đukić, Miloš, "Erosion Wear Behavior of High Chromium Cast Irons" in Transactions of The Indian Institute of Metals (2023),
https://doi.org/10.1007/s12666-022-02860-7 . .

TY  - JOUR
AU  - Maslarević, Aleksandar
AU  - Bakić, Gordana
AU  - Rajičić, Bratislav
AU  - Milošević, Nenad
AU  - Maksimović, Vesna
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7333
AB  - The paper describes the surfacing technology for coating of high-alloyed austenitic stainless steel 316L on the steel S235JR base material. Coatings were applied by plasma transferred arc welding process. The 5 samples were made using different welding currents while other welding param¬eters were constant. Metallographic analysis of the obtained samples is used to establish a correlation between the micro¬structural constituents and the applied welding current in the surfacing process. According to this it was possible to determine the optimal parameters of coating surfacing. The filler material was in the form of powder, while its charac¬terization was performed by scanning electron microscopy, and the characterization of the obtained coatings by optical microscopy.
T2  - Structural Integrity and Life
T1  - Influence of plasma transferred arc welding parameters on the obtained microstructure of 316L coating
EP  - 128
IS  - 2
SP  - 123
VL  - 23
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7333
ER  - 

@article{
author = "Maslarević, Aleksandar and Bakić, Gordana and Rajičić, Bratislav and Milošević, Nenad and Maksimović, Vesna",
year = "2023",
abstract = "The paper describes the surfacing technology for coating of high-alloyed austenitic stainless steel 316L on the steel S235JR base material. Coatings were applied by plasma transferred arc welding process. The 5 samples were made using different welding currents while other welding param¬eters were constant. Metallographic analysis of the obtained samples is used to establish a correlation between the micro¬structural constituents and the applied welding current in the surfacing process. According to this it was possible to determine the optimal parameters of coating surfacing. The filler material was in the form of powder, while its charac¬terization was performed by scanning electron microscopy, and the characterization of the obtained coatings by optical microscopy.",
journal = "Structural Integrity and Life",
title = "Influence of plasma transferred arc welding parameters on the obtained microstructure of 316L coating",
pages = "128-123",
number = "2",
volume = "23",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7333"
}

Maslarević, A., Bakić, G., Rajičić, B., Milošević, N.,& Maksimović, V.. (2023). Influence of plasma transferred arc welding parameters on the obtained microstructure of 316L coating. in Structural Integrity and Life, 23(2), 123-128.
https://hdl.handle.net/21.15107/rcub_machinery_7333

Maslarević A, Bakić G, Rajičić B, Milošević N, Maksimović V. Influence of plasma transferred arc welding parameters on the obtained microstructure of 316L coating. in Structural Integrity and Life. 2023;23(2):123-128.
https://hdl.handle.net/21.15107/rcub_machinery_7333 .

Maslarević, Aleksandar, Bakić, Gordana, Rajičić, Bratislav, Milošević, Nenad, Maksimović, Vesna, "Influence of plasma transferred arc welding parameters on the obtained microstructure of 316L coating" in Structural Integrity and Life, 23, no. 2 (2023):123-128,
https://hdl.handle.net/21.15107/rcub_machinery_7333 .

TY  - CONF
AU  - Maslarević, Aleksandar
AU  - Bakić, Gordana
AU  - Rajičić, Bratislav
AU  - Milošević, Nenad
AU  - Maksimović, Vesna
AU  - Pavkov, Vladimir
PY  - 2023
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6895
AB  - Compound Ti2AlC is a MAX phase discovered in the early 1960s.  It is well known that Ti2AlC has excellent physical and mechanical properties and chemical stability [1]. On the surface of Ti2AlC, at high temperatures, a stable, protective oxide layer, Al2O3, is usually formed [2], whose coefficient of thermal expansion is approximately equal to the coefficient of thermal expansion of Ti2AlC [3]. If this Al2O3 layer is compact, it stops further oxygen penetration and protects Ti2AlC from further oxidation. Due to its excellent oxidation resistance, MAX phase Ti2AlC has great potential in producing protective coatings for components in the industry that are exposed to high temperatures [4,5]. Coating Ti2AlC can be applied to the substrate by different thermal spraying processes. Cold spraying (CS), high velocity air fuel (HVAF), and high velocity oxygen fuel (HVOF) processes can be singled out as particularly interesting due to the possibility of applying thicker coatings to the substrate [6].
This paper describes the technology of applying the Ti2AlC phase on heat-resistant steel using the HVOF system of the third generation, which uses a mixture of oxygen and kerosene as fuel. Also, the filler material, which was in the form of powder, and the microstructure of the obtained coating were characterized by scanning electron microscopy (SEM). The Ti2AlC coating was successfully applied and a relatively good mechanical bond was achieved with the substrate. The goal of surfacing the Ti2AlC coating was a potential application for protecting steel from oxidation at elevated temperatures.

[1] F. Zhang et al., Surf.Coat. Tech., 441(2022) 128584.
[2] X.H. Wang, Y.C. Zhou, Oxid. Met., 59(2003) 303.
[3] W.H. Gitzen (Ed.), Westerville, Ohio, (1970) ISBN 0-916094-46-4.
[4]Q.M. Wanget et al, Surf.Coat.Tech., 204(2010) 2343.
[5] X.H. Wang and Y.C. Zhou, J. Mater. Sci. Technol., 26(2010) 385.
[6] N. Markocsan et al., Сверхтвердые материалы, 5(2017) 73.
PB  - Beograd : Institut za multidisciplinarna istrazivanja
C3  - 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, Programme and the Book of Abstracts, June 14-16, 2023 Belgrade, Serbia
T1  - Thermal Spraying of Ti2AlC coatings
EP  - 89
SP  - 89
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6895
ER  - 

@conference{
author = "Maslarević, Aleksandar and Bakić, Gordana and Rajičić, Bratislav and Milošević, Nenad and Maksimović, Vesna and Pavkov, Vladimir",
year = "2023",
abstract = "Compound Ti2AlC is a MAX phase discovered in the early 1960s.  It is well known that Ti2AlC has excellent physical and mechanical properties and chemical stability [1]. On the surface of Ti2AlC, at high temperatures, a stable, protective oxide layer, Al2O3, is usually formed [2], whose coefficient of thermal expansion is approximately equal to the coefficient of thermal expansion of Ti2AlC [3]. If this Al2O3 layer is compact, it stops further oxygen penetration and protects Ti2AlC from further oxidation. Due to its excellent oxidation resistance, MAX phase Ti2AlC has great potential in producing protective coatings for components in the industry that are exposed to high temperatures [4,5]. Coating Ti2AlC can be applied to the substrate by different thermal spraying processes. Cold spraying (CS), high velocity air fuel (HVAF), and high velocity oxygen fuel (HVOF) processes can be singled out as particularly interesting due to the possibility of applying thicker coatings to the substrate [6].
This paper describes the technology of applying the Ti2AlC phase on heat-resistant steel using the HVOF system of the third generation, which uses a mixture of oxygen and kerosene as fuel. Also, the filler material, which was in the form of powder, and the microstructure of the obtained coating were characterized by scanning electron microscopy (SEM). The Ti2AlC coating was successfully applied and a relatively good mechanical bond was achieved with the substrate. The goal of surfacing the Ti2AlC coating was a potential application for protecting steel from oxidation at elevated temperatures.

[1] F. Zhang et al., Surf.Coat. Tech., 441(2022) 128584.
[2] X.H. Wang, Y.C. Zhou, Oxid. Met., 59(2003) 303.
[3] W.H. Gitzen (Ed.), Westerville, Ohio, (1970) ISBN 0-916094-46-4.
[4]Q.M. Wanget et al, Surf.Coat.Tech., 204(2010) 2343.
[5] X.H. Wang and Y.C. Zhou, J. Mater. Sci. Technol., 26(2010) 385.
[6] N. Markocsan et al., Сверхтвердые материалы, 5(2017) 73.",
publisher = "Beograd : Institut za multidisciplinarna istrazivanja",
journal = "7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, Programme and the Book of Abstracts, June 14-16, 2023 Belgrade, Serbia",
title = "Thermal Spraying of Ti2AlC coatings",
pages = "89-89",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6895"
}

Maslarević, A., Bakić, G., Rajičić, B., Milošević, N., Maksimović, V.,& Pavkov, V.. (2023). Thermal Spraying of Ti2AlC coatings. in 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, Programme and the Book of Abstracts, June 14-16, 2023 Belgrade, Serbia
Beograd : Institut za multidisciplinarna istrazivanja., 89-89.
https://hdl.handle.net/21.15107/rcub_machinery_6895

Maslarević A, Bakić G, Rajičić B, Milošević N, Maksimović V, Pavkov V. Thermal Spraying of Ti2AlC coatings. in 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, Programme and the Book of Abstracts, June 14-16, 2023 Belgrade, Serbia. 2023;:89-89.
https://hdl.handle.net/21.15107/rcub_machinery_6895 .

Maslarević, Aleksandar, Bakić, Gordana, Rajičić, Bratislav, Milošević, Nenad, Maksimović, Vesna, Pavkov, Vladimir, "Thermal Spraying of Ti2AlC coatings" in 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, Programme and the Book of Abstracts, June 14-16, 2023 Belgrade, Serbia (2023):89-89,
https://hdl.handle.net/21.15107/rcub_machinery_6895 .

TY  - CONF
AU  - Pavkov, Vladimir
AU  - Bakić, Gordana
AU  - Maksimović, Vesna
AU  - Đukić, Miloš
AU  - Rajičić, Bratislav
AU  - Maslarević, Aleksandar
AU  - Matović, Branko
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7430
AB  - One of the most responsible elements of modern steam boilers are steam superheaters and reheaters.
These heating surfaces are inside the boiler chamber and consist of tubes connected to the inlet and
outlet header. Due to the complexity of service conditions, boiler tubes are exposed to processes of
gradual degradation, and consequently a decrease in operating performance and reliability.
In the operation of thermal power plants, irreversible metal losses resulting from corrosion can
cause tube failure and plant outage. Considering the loss of materials, gas corrosion in the dry gas
atmosphere due to the high temperature is of great importance. Gas corrosion can be expressed in
the boiler tubing system due to the presence of sulfur compounds in the flue gases. For this reason,
it must be borne in mind that the outer surface of a tube of final reheater has different damage
mechanisms during operation, and one of them is gas corrosion. Gas corrosion causes material loss
and provides a site for crack initiation and propagation, which can compromise the integrity of the
pressure vessel.
In this paper, a tube of a final reheater from a 210 MW power plant was tested. The tube was in
service 200,000 h at a working temperature of 540 °C and a maximum working pressure of 4.6
MPa. The tube is made of low alloy Cr-Mo-V steel, class 12H1MF (GOST). After long-term
service, a rough surface and loss of the material in the form of a crater were observed on the outer
surface of the tube as a result of the effect of gas corrosion, together with the change of
microstructure due to elevated service temperature. The measured depth of damage to the tube is
120 m. The presence of gas corrosion on the tube was confirmed and measured by an optical
microscope, Figure 1.
PB  - Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade
PB  - Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)
C3  - Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022
T1  - Damage to a tube of output reheater due to gas corrosion
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7430
ER  - 

@conference{
author = "Pavkov, Vladimir and Bakić, Gordana and Maksimović, Vesna and Đukić, Miloš and Rajičić, Bratislav and Maslarević, Aleksandar and Matović, Branko",
year = "2022",
abstract = "One of the most responsible elements of modern steam boilers are steam superheaters and reheaters.
These heating surfaces are inside the boiler chamber and consist of tubes connected to the inlet and
outlet header. Due to the complexity of service conditions, boiler tubes are exposed to processes of
gradual degradation, and consequently a decrease in operating performance and reliability.
In the operation of thermal power plants, irreversible metal losses resulting from corrosion can
cause tube failure and plant outage. Considering the loss of materials, gas corrosion in the dry gas
atmosphere due to the high temperature is of great importance. Gas corrosion can be expressed in
the boiler tubing system due to the presence of sulfur compounds in the flue gases. For this reason,
it must be borne in mind that the outer surface of a tube of final reheater has different damage
mechanisms during operation, and one of them is gas corrosion. Gas corrosion causes material loss
and provides a site for crack initiation and propagation, which can compromise the integrity of the
pressure vessel.
In this paper, a tube of a final reheater from a 210 MW power plant was tested. The tube was in
service 200,000 h at a working temperature of 540 °C and a maximum working pressure of 4.6
MPa. The tube is made of low alloy Cr-Mo-V steel, class 12H1MF (GOST). After long-term
service, a rough surface and loss of the material in the form of a crater were observed on the outer
surface of the tube as a result of the effect of gas corrosion, together with the change of
microstructure due to elevated service temperature. The measured depth of damage to the tube is
120 m. The presence of gas corrosion on the tube was confirmed and measured by an optical
microscope, Figure 1.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade, Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)",
journal = "Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022",
title = "Damage to a tube of output reheater due to gas corrosion",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7430"
}

Pavkov, V., Bakić, G., Maksimović, V., Đukić, M., Rajičić, B., Maslarević, A.,& Matović, B.. (2022). Damage to a tube of output reheater due to gas corrosion. in Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022
Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade..
https://hdl.handle.net/21.15107/rcub_machinery_7430

Pavkov V, Bakić G, Maksimović V, Đukić M, Rajičić B, Maslarević A, Matović B. Damage to a tube of output reheater due to gas corrosion. in Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022. 2022;.
https://hdl.handle.net/21.15107/rcub_machinery_7430 .

Pavkov, Vladimir, Bakić, Gordana, Maksimović, Vesna, Đukić, Miloš, Rajičić, Bratislav, Maslarević, Aleksandar, Matović, Branko, "Damage to a tube of output reheater due to gas corrosion" in Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022 (2022),
https://hdl.handle.net/21.15107/rcub_machinery_7430 .

TY  - JOUR
AU  - Sedmak, Aleksandar
AU  - Zaidi, Radzeya
AU  - Vujicić, Borivoje
AU  - Šarkočević, Živče
AU  - Kirin, Snežana
AU  - Stamenić, Zoran
AU  - Đukić, Miloš
AU  - Bakić, Gordana
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3703
AB  - Corrosion effects on structural integrity and life of oil rig welded pipes are analysed by experimental, analytical, and numerical methods. Experiments were performed using standard tensile specimens and CT specimens for static loading, Charpy specimens for impact loading, and 3 Point Bending specimens for fatigue crack growth with amplitude loading. In each case new and old pipes were used to evaluate corrosion effects. Results indicated negligible corrosion effects in the case of tensile properties and impact toughness, and strong effects in the case of fracture toughness and especially fatigue crack growth rates, increasing the risk of static failure and reducing significantly structural life. Analytical expressions are used for oil rig pipe structural integrity and life assessment to quantify these effects. Recently introduced risk-based approach is applied to analyse oil rig drill pipe with a corrosion defect treated as a surface crack.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska Industrija
T1  - Corrosion effects on structural integrity and life of oil rig drill pipes
EP  - 177
IS  - 3
SP  - 167
VL  - 76
DO  - 10.2298/HEMIND220222014S
ER  - 

@article{
author = "Sedmak, Aleksandar and Zaidi, Radzeya and Vujicić, Borivoje and Šarkočević, Živče and Kirin, Snežana and Stamenić, Zoran and Đukić, Miloš and Bakić, Gordana",
year = "2022",
abstract = "Corrosion effects on structural integrity and life of oil rig welded pipes are analysed by experimental, analytical, and numerical methods. Experiments were performed using standard tensile specimens and CT specimens for static loading, Charpy specimens for impact loading, and 3 Point Bending specimens for fatigue crack growth with amplitude loading. In each case new and old pipes were used to evaluate corrosion effects. Results indicated negligible corrosion effects in the case of tensile properties and impact toughness, and strong effects in the case of fracture toughness and especially fatigue crack growth rates, increasing the risk of static failure and reducing significantly structural life. Analytical expressions are used for oil rig pipe structural integrity and life assessment to quantify these effects. Recently introduced risk-based approach is applied to analyse oil rig drill pipe with a corrosion defect treated as a surface crack.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska Industrija",
title = "Corrosion effects on structural integrity and life of oil rig drill pipes",
pages = "177-167",
number = "3",
volume = "76",
doi = "10.2298/HEMIND220222014S"
}

Sedmak, A., Zaidi, R., Vujicić, B., Šarkočević, Ž., Kirin, S., Stamenić, Z., Đukić, M.,& Bakić, G.. (2022). Corrosion effects on structural integrity and life of oil rig drill pipes. in Hemijska Industrija
Savez hemijskih inženjera, Beograd., 76(3), 167-177.
https://doi.org/10.2298/HEMIND220222014S

Sedmak A, Zaidi R, Vujicić B, Šarkočević Ž, Kirin S, Stamenić Z, Đukić M, Bakić G. Corrosion effects on structural integrity and life of oil rig drill pipes. in Hemijska Industrija. 2022;76(3):167-177.
doi:10.2298/HEMIND220222014S .

Sedmak, Aleksandar, Zaidi, Radzeya, Vujicić, Borivoje, Šarkočević, Živče, Kirin, Snežana, Stamenić, Zoran, Đukić, Miloš, Bakić, Gordana, "Corrosion effects on structural integrity and life of oil rig drill pipes" in Hemijska Industrija, 76, no. 3 (2022):167-177,
https://doi.org/10.2298/HEMIND220222014S . .

TY  - PAT
AU  - Maslarević, Aleksandar
AU  - Bakić, Gordana
AU  - Rajičić, Bratislav
AU  - Milošević, Nenad
AU  - Martić, Igor
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4280
T1  - Alat za osiguranje položaja diskova pri određivanju srednje brzine čestica erodenta nošenih strujom vazduha
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4280
ER  - 

@misc{
author = "Maslarević, Aleksandar and Bakić, Gordana and Rajičić, Bratislav and Milošević, Nenad and Martić, Igor",
year = "2022",
title = "Alat za osiguranje položaja diskova pri određivanju srednje brzine čestica erodenta nošenih strujom vazduha",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4280"
}

Maslarević, A., Bakić, G., Rajičić, B., Milošević, N.,& Martić, I.. (2022). Alat za osiguranje položaja diskova pri određivanju srednje brzine čestica erodenta nošenih strujom vazduha. .
https://hdl.handle.net/21.15107/rcub_machinery_4280

Maslarević A, Bakić G, Rajičić B, Milošević N, Martić I. Alat za osiguranje položaja diskova pri određivanju srednje brzine čestica erodenta nošenih strujom vazduha. 2022;.
https://hdl.handle.net/21.15107/rcub_machinery_4280 .

Maslarević, Aleksandar, Bakić, Gordana, Rajičić, Bratislav, Milošević, Nenad, Martić, Igor, "Alat za osiguranje položaja diskova pri određivanju srednje brzine čestica erodenta nošenih strujom vazduha" (2022),
https://hdl.handle.net/21.15107/rcub_machinery_4280 .

TY  - CONF
AU  - Bakić, Gordana
AU  - Đukić, Miloš
AU  - Rajičić, Bratislav
AU  - Maslarević, Aleksandar
AU  - Maksimović, Vesna
AU  - Pavkov, Vladimir
AU  - Milošević, Nenad
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4429
C3  - Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022
T1  - High temperature failures of metals
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4429
ER  - 

@conference{
author = "Bakić, Gordana and Đukić, Miloš and Rajičić, Bratislav and Maslarević, Aleksandar and Maksimović, Vesna and Pavkov, Vladimir and Milošević, Nenad",
year = "2022",
journal = "Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022",
title = "High temperature failures of metals",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4429"
}

Bakić, G., Đukić, M., Rajičić, B., Maslarević, A., Maksimović, V., Pavkov, V.,& Milošević, N.. (2022). High temperature failures of metals. in Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022.
https://hdl.handle.net/21.15107/rcub_machinery_4429

Bakić G, Đukić M, Rajičić B, Maslarević A, Maksimović V, Pavkov V, Milošević N. High temperature failures of metals. in Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022. 2022;.
https://hdl.handle.net/21.15107/rcub_machinery_4429 .

Bakić, Gordana, Đukić, Miloš, Rajičić, Bratislav, Maslarević, Aleksandar, Maksimović, Vesna, Pavkov, Vladimir, Milošević, Nenad, "High temperature failures of metals" in Program and Book of abstracts of the 1st Intentational conference on innovativ materials in extreme conditions IMEC2022 (2022),
https://hdl.handle.net/21.15107/rcub_machinery_4429 .

TY  - CONF
AU  - Opačić, Mirjana
AU  - Sedmak, Aleksandar
AU  - Bakić, Gordana
AU  - Milošević, Nenad
AU  - Milovanović, Nikola
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4276
AB  - The review of non-destructive testing of pressure vessel for compressed air is given, as well as the assessment and analysis of defects on the integrity of the vessel itself. The focus here is on welded joints, as the most critical areas in pressure vessels, especially if thickness is large, like in the case considered here (50 mm), cylindrical air storage vessels made of HSLA steel. Toward this end conventional NDT methods, such as UT and Radiography are used in the first phase of this research, providing valuable data for structural integrity assessment based on detected unacceptable defects in welded joints. Anyhow, since few unacceptable defects were found by conventional UT, there was a need to use advanced NDT UT methods, such as Phased Array Ultrasonic Testing (PAUT), to evaluate defect position and size more precisely. In this way risk of failure can be assessed more reliable, which is of utmost importance for pressure vessel where probability of failure is low, but the consequence of failure is potentially catastrophic, like in the case considered here.
PB  - Elsevier
C3  - 23 European Conference on Fracture - ECF23
T1  - Application of advanced NDT methods to assess structural integrity of pressure vessel welded joints
EP  - 1189
SP  - 1185
VL  - 42
DO  - http://dx.doi.org/10.1016/j.prostr.2022.12.151
ER  - 

@conference{
author = "Opačić, Mirjana and Sedmak, Aleksandar and Bakić, Gordana and Milošević, Nenad and Milovanović, Nikola",
year = "2022",
abstract = "The review of non-destructive testing of pressure vessel for compressed air is given, as well as the assessment and analysis of defects on the integrity of the vessel itself. The focus here is on welded joints, as the most critical areas in pressure vessels, especially if thickness is large, like in the case considered here (50 mm), cylindrical air storage vessels made of HSLA steel. Toward this end conventional NDT methods, such as UT and Radiography are used in the first phase of this research, providing valuable data for structural integrity assessment based on detected unacceptable defects in welded joints. Anyhow, since few unacceptable defects were found by conventional UT, there was a need to use advanced NDT UT methods, such as Phased Array Ultrasonic Testing (PAUT), to evaluate defect position and size more precisely. In this way risk of failure can be assessed more reliable, which is of utmost importance for pressure vessel where probability of failure is low, but the consequence of failure is potentially catastrophic, like in the case considered here.",
publisher = "Elsevier",
journal = "23 European Conference on Fracture - ECF23",
title = "Application of advanced NDT methods to assess structural integrity of pressure vessel welded joints",
pages = "1189-1185",
volume = "42",
doi = "http://dx.doi.org/10.1016/j.prostr.2022.12.151"
}

Opačić, M., Sedmak, A., Bakić, G., Milošević, N.,& Milovanović, N.. (2022). Application of advanced NDT methods to assess structural integrity of pressure vessel welded joints. in 23 European Conference on Fracture - ECF23
Elsevier., 42, 1185-1189.
https://doi.org/http://dx.doi.org/10.1016/j.prostr.2022.12.151

Opačić M, Sedmak A, Bakić G, Milošević N, Milovanović N. Application of advanced NDT methods to assess structural integrity of pressure vessel welded joints. in 23 European Conference on Fracture - ECF23. 2022;42:1185-1189.
doi:http://dx.doi.org/10.1016/j.prostr.2022.12.151 .

Opačić, Mirjana, Sedmak, Aleksandar, Bakić, Gordana, Milošević, Nenad, Milovanović, Nikola, "Application of advanced NDT methods to assess structural integrity of pressure vessel welded joints" in 23 European Conference on Fracture - ECF23, 42 (2022):1185-1189,
https://doi.org/http://dx.doi.org/10.1016/j.prostr.2022.12.151 . .

TY  - JOUR
AU  - Pavkov, Vladimir
AU  - Bakić, Gordana
AU  - Maksimović, Vesna
AU  - Cvijović-Alagić, Ivana
AU  - Prekajski-Dordjević, Marija
AU  - Bucevac, Dušan
AU  - Matović, Branko
PY  - 2022
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3787
AB  - In the present study, andesite basalt originated from the deposit site ???Donje Jarinje???, Serbia, was examined as a potential raw material for high-density ceramics production. The production of high-density ceramics included dry milling, homogenization, cold isostatic pressing and sintering in the air. To determine the optimal processing parameters the sintering was conducted at 1040, 1050, 1060, 1070 and 1080 ??C, and afterwards the sintering duration was varied from 30 to 240 min at the optimal sintering temperature of 1060 ??C. Characterization of the starting and sintered materials included the estimation of particle size distribution, density, hardness and fracture toughness complemented with X-ray diffraction, optical light microscopy, scanning electron microscopy and energy dispersive spectroscopy analysis. Phase transformations did not occur during processing in the investigated temperature range from 1040 to 1080 ??C. The obtained research results showed that 99.5% of relative density and the highest hardness and fracture toughness values of 6.7 GPa and 2.2 MPa??m1/2, respectively, were achieved for the andesite basalt sintered at 1060 ??C for 60 min in the air. The results of the present study confirmed that the sintered andesite basalt can be used as a high-density ceramic material for various industrial applications.
PB  - Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad
T2  - Processing and Application of Ceramics
T1  - High-density ceramics obtained by andesite basalt sintering
EP  - 152
IS  - 2
SP  - 143
VL  - 16
DO  - 10.2298/PAC2202143P
ER  - 

@article{
author = "Pavkov, Vladimir and Bakić, Gordana and Maksimović, Vesna and Cvijović-Alagić, Ivana and Prekajski-Dordjević, Marija and Bucevac, Dušan and Matović, Branko",
year = "2022",
abstract = "In the present study, andesite basalt originated from the deposit site ???Donje Jarinje???, Serbia, was examined as a potential raw material for high-density ceramics production. The production of high-density ceramics included dry milling, homogenization, cold isostatic pressing and sintering in the air. To determine the optimal processing parameters the sintering was conducted at 1040, 1050, 1060, 1070 and 1080 ??C, and afterwards the sintering duration was varied from 30 to 240 min at the optimal sintering temperature of 1060 ??C. Characterization of the starting and sintered materials included the estimation of particle size distribution, density, hardness and fracture toughness complemented with X-ray diffraction, optical light microscopy, scanning electron microscopy and energy dispersive spectroscopy analysis. Phase transformations did not occur during processing in the investigated temperature range from 1040 to 1080 ??C. The obtained research results showed that 99.5% of relative density and the highest hardness and fracture toughness values of 6.7 GPa and 2.2 MPa??m1/2, respectively, were achieved for the andesite basalt sintered at 1060 ??C for 60 min in the air. The results of the present study confirmed that the sintered andesite basalt can be used as a high-density ceramic material for various industrial applications.",
publisher = "Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad",
journal = "Processing and Application of Ceramics",
title = "High-density ceramics obtained by andesite basalt sintering",
pages = "152-143",
number = "2",
volume = "16",
doi = "10.2298/PAC2202143P"
}

Pavkov, V., Bakić, G., Maksimović, V., Cvijović-Alagić, I., Prekajski-Dordjević, M., Bucevac, D.,& Matović, B.. (2022). High-density ceramics obtained by andesite basalt sintering. in Processing and Application of Ceramics
Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad., 16(2), 143-152.
https://doi.org/10.2298/PAC2202143P

Pavkov V, Bakić G, Maksimović V, Cvijović-Alagić I, Prekajski-Dordjević M, Bucevac D, Matović B. High-density ceramics obtained by andesite basalt sintering. in Processing and Application of Ceramics. 2022;16(2):143-152.
doi:10.2298/PAC2202143P .

Pavkov, Vladimir, Bakić, Gordana, Maksimović, Vesna, Cvijović-Alagić, Ivana, Prekajski-Dordjević, Marija, Bucevac, Dušan, Matović, Branko, "High-density ceramics obtained by andesite basalt sintering" in Processing and Application of Ceramics, 16, no. 2 (2022):143-152,
https://doi.org/10.2298/PAC2202143P . .

TY  - BOOK
AU  - Bakić, Gordana
AU  - Đukić, Miloš
AU  - Šijački Žeravčić, Vera
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6383
AB  - Projektovanje i vek mašinskih konstrukcija su u direktnoj vezi sa uslovima
rada kojima su one izložene. Uslovi rada pogoduju pojavi različitih oštećenja
čije prisustvo na specifičan način menja prvobitno stanje materijala
konstrukcije. Da bi se pojava oštećenja vitalne opreme svela na najmanju
meru, neophodno je u svakom pojedinačnom slučaju odrediti delujući
mehanizam oštećenja, pojavu i širenje oštećenja, kao i stvarni uzročnik koji
to oštećenje izaziva.
Važnost ovih saznanja leži u činjenici da promene izazvane različitim
mehanizmima oštećenja dovode do promene osobina konstrukcije, tako što
se menjaju svojstva materijala i/ili geometrija, tj. poprečni presek mašinskog
dela. Usled ovakvih promena, prvobitni projektni uslovi konstrukcija više nisu
merodavni, mašinske konstrukcije gube svoju radnu sposobnost koja
vremenom opada do te mere da dolazi do otkaza koji se najčešće manifestuje
lomom ili prekomernom deformacijom dela. Zato može da se kaže da u
velikom broju slučajeva pojave oštećenja, posebno kod složenih sistema,
između teorije i prakse postoji značajan raskorak - delujući mehanizam
oštećenja je funkcija velikog broja uticajnih parametara, od kojih neki ne
mogu čak ni da budu pretpostavljeni, pa samim tim ni kontrolisani.
Stanje materijala kao i sklonost ka pojavi oštećenja u uslovima oštrih
parametara radne sredine nekog sistema ili njegovog dela, ali i mehanizmi
oštećenja koji počnu da deluju imaju ključnu ulogu i u proceni preostalog
resursa za rad datog sistema i u proceni vremena neophodne zamene
sistema/dela, čime smo zatvorili krug i ponovo došli na početak.
Gradivo u ovom udžbeniku je namenjeno studentima koji slušaju
predmet Ponašanje zavarenih spojeva u eksploataciji na Master akademskim
studijama Mašinskog fakulteta Univerziteta u Beogradu, ali i za predmete na
doktorskim studijama koji obrađuju mehanizme oštećenja i koroziju -
Ponašanje i pouzdanost materijala u eksploataciji i Кorozija materijala i
zaštita. Cilj ovog udžbenika je da se studentima ne samo približe osnove
mehanizama oštećenja mašinskih konstrukcija i efekti do kojih oni dovode,
već i da se upoznaju i nauče da prepoznaju osnovne tipove nekih vrsta
oštećenja (npr. osnovne oblike korozije, oštećenja od puzanja, zamora, itd.).
Za sve mehanizme oštećenja pored opšteg razmatranja, posebno je
analizirano kako se mehanizmi oštećenja manifestuju kod zavarenih spojeva.
Ovo je prvenstveno urađeno zbog studenata sa modula Zavarivanje i
zavarene konstrukcije na Mašinskom fakultetu, ali i zbog studenata sa drugih
modula koji godinama biraju ovaj predmet u okviru svog master programa.
Za detekciju većine oštećenja koriste se različite tehnike ispitivanja, od
kojih je studentima mašinstva najmanje poznata mikroskopija pa je stoga u
knjizi posvećena posebna pažnja osnovama mikroskopije i načinima njene
primene u otkrivanju oštećenja. S obzirom da oštećenja nastaju u
kompleksnim uslovima, u gradivu su istaknuti dominantni aspekti koji utiču na
oštećenja.
Autori od srca zahvaljuju recenzentima prof. dr Radici Prokić Cvetković i
dr Vesni Maksimović, naučnom savetniku, na uloženom trudu i korisnim
sugestijama da ova knjiga dobije konačan izgled.
Posebnu zahvalnost autori duguju laboratoriji „Tehnički centar-Inspekt“
iz Obrenovca na čelu sa direktorkom g-đom Vesnom Peruničić, dipl.inž.met.
koji su naši dugogodišnji saradnici sa kojima smo izradili veliki broja
ekspertiza, odakle i potiče najveći broj neverovatno lepih mikrofotografija
mikrostruktura, koje smo koristili u tekstu i bez kojih najveći broj obrađenih
mehanizama oštećenja i lomova ne bi mogao da budu kvalitetno ilustrovan.
Takođe, autori od srca zahvaljuju i našim dragim saradnicima Bratislavu
Rajičiću, dr Aleksandru Maslareviću, naučnom saradniku, i dr Biljani Anđelić,
redovnom profesoru u penziji, na pomoći oko izrade ovog udžbenika i što su
imali strpljenja svih ovih godina, zatim, prof. dr Draganu Cvetkoviću koji nam
je uredio naslovne strane, kao i laboratoriji „Zavod za zavarivanje“ koja nam
je ustupila neke svoje fotografije za ilustraciju.
I za kraj, treba navesti u ovom uvodnom delu - multidisciplinarnost tokom
istraživanja je preduslov da bi mogla da se pouzdano izvode analize uzroka
pojave oštećenja i lomova.
Svaku sugestiju od strane čitalaca i korisnika ovog udžbenika, u smislu
poboljšanja njegovog kvaliteta, autori će rado čuti i prihvatiti.
PB  - Univerzitet u Beogradu, Mašinski fakultet
T2  - Univerzitet u Beogradu, Mašinski fakultet
T1  - Osnovni mehanizmi oštećenja mašinskih konstrukcija
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6383
ER  - 

@book{
author = "Bakić, Gordana and Đukić, Miloš and Šijački Žeravčić, Vera",
year = "2021",
abstract = "Projektovanje i vek mašinskih konstrukcija su u direktnoj vezi sa uslovima
rada kojima su one izložene. Uslovi rada pogoduju pojavi različitih oštećenja
čije prisustvo na specifičan način menja prvobitno stanje materijala
konstrukcije. Da bi se pojava oštećenja vitalne opreme svela na najmanju
meru, neophodno je u svakom pojedinačnom slučaju odrediti delujući
mehanizam oštećenja, pojavu i širenje oštećenja, kao i stvarni uzročnik koji
to oštećenje izaziva.
Važnost ovih saznanja leži u činjenici da promene izazvane različitim
mehanizmima oštećenja dovode do promene osobina konstrukcije, tako što
se menjaju svojstva materijala i/ili geometrija, tj. poprečni presek mašinskog
dela. Usled ovakvih promena, prvobitni projektni uslovi konstrukcija više nisu
merodavni, mašinske konstrukcije gube svoju radnu sposobnost koja
vremenom opada do te mere da dolazi do otkaza koji se najčešće manifestuje
lomom ili prekomernom deformacijom dela. Zato može da se kaže da u
velikom broju slučajeva pojave oštećenja, posebno kod složenih sistema,
između teorije i prakse postoji značajan raskorak - delujući mehanizam
oštećenja je funkcija velikog broja uticajnih parametara, od kojih neki ne
mogu čak ni da budu pretpostavljeni, pa samim tim ni kontrolisani.
Stanje materijala kao i sklonost ka pojavi oštećenja u uslovima oštrih
parametara radne sredine nekog sistema ili njegovog dela, ali i mehanizmi
oštećenja koji počnu da deluju imaju ključnu ulogu i u proceni preostalog
resursa za rad datog sistema i u proceni vremena neophodne zamene
sistema/dela, čime smo zatvorili krug i ponovo došli na početak.
Gradivo u ovom udžbeniku je namenjeno studentima koji slušaju
predmet Ponašanje zavarenih spojeva u eksploataciji na Master akademskim
studijama Mašinskog fakulteta Univerziteta u Beogradu, ali i za predmete na
doktorskim studijama koji obrađuju mehanizme oštećenja i koroziju -
Ponašanje i pouzdanost materijala u eksploataciji i Кorozija materijala i
zaštita. Cilj ovog udžbenika je da se studentima ne samo približe osnove
mehanizama oštećenja mašinskih konstrukcija i efekti do kojih oni dovode,
već i da se upoznaju i nauče da prepoznaju osnovne tipove nekih vrsta
oštećenja (npr. osnovne oblike korozije, oštećenja od puzanja, zamora, itd.).
Za sve mehanizme oštećenja pored opšteg razmatranja, posebno je
analizirano kako se mehanizmi oštećenja manifestuju kod zavarenih spojeva.
Ovo je prvenstveno urađeno zbog studenata sa modula Zavarivanje i
zavarene konstrukcije na Mašinskom fakultetu, ali i zbog studenata sa drugih
modula koji godinama biraju ovaj predmet u okviru svog master programa.
Za detekciju većine oštećenja koriste se različite tehnike ispitivanja, od
kojih je studentima mašinstva najmanje poznata mikroskopija pa je stoga u
knjizi posvećena posebna pažnja osnovama mikroskopije i načinima njene
primene u otkrivanju oštećenja. S obzirom da oštećenja nastaju u
kompleksnim uslovima, u gradivu su istaknuti dominantni aspekti koji utiču na
oštećenja.
Autori od srca zahvaljuju recenzentima prof. dr Radici Prokić Cvetković i
dr Vesni Maksimović, naučnom savetniku, na uloženom trudu i korisnim
sugestijama da ova knjiga dobije konačan izgled.
Posebnu zahvalnost autori duguju laboratoriji „Tehnički centar-Inspekt“
iz Obrenovca na čelu sa direktorkom g-đom Vesnom Peruničić, dipl.inž.met.
koji su naši dugogodišnji saradnici sa kojima smo izradili veliki broja
ekspertiza, odakle i potiče najveći broj neverovatno lepih mikrofotografija
mikrostruktura, koje smo koristili u tekstu i bez kojih najveći broj obrađenih
mehanizama oštećenja i lomova ne bi mogao da budu kvalitetno ilustrovan.
Takođe, autori od srca zahvaljuju i našim dragim saradnicima Bratislavu
Rajičiću, dr Aleksandru Maslareviću, naučnom saradniku, i dr Biljani Anđelić,
redovnom profesoru u penziji, na pomoći oko izrade ovog udžbenika i što su
imali strpljenja svih ovih godina, zatim, prof. dr Draganu Cvetkoviću koji nam
je uredio naslovne strane, kao i laboratoriji „Zavod za zavarivanje“ koja nam
je ustupila neke svoje fotografije za ilustraciju.
I za kraj, treba navesti u ovom uvodnom delu - multidisciplinarnost tokom
istraživanja je preduslov da bi mogla da se pouzdano izvode analize uzroka
pojave oštećenja i lomova.
Svaku sugestiju od strane čitalaca i korisnika ovog udžbenika, u smislu
poboljšanja njegovog kvaliteta, autori će rado čuti i prihvatiti.",
publisher = "Univerzitet u Beogradu, Mašinski fakultet",
journal = "Univerzitet u Beogradu, Mašinski fakultet",
title = "Osnovni mehanizmi oštećenja mašinskih konstrukcija",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6383"
}

Bakić, G., Đukić, M.,& Šijački Žeravčić, V.. (2021). Osnovni mehanizmi oštećenja mašinskih konstrukcija. in Univerzitet u Beogradu, Mašinski fakultet
Univerzitet u Beogradu, Mašinski fakultet..
https://hdl.handle.net/21.15107/rcub_machinery_6383

Bakić G, Đukić M, Šijački Žeravčić V. Osnovni mehanizmi oštećenja mašinskih konstrukcija. in Univerzitet u Beogradu, Mašinski fakultet. 2021;.
https://hdl.handle.net/21.15107/rcub_machinery_6383 .

Bakić, Gordana, Đukić, Miloš, Šijački Žeravčić, Vera, "Osnovni mehanizmi oštećenja mašinskih konstrukcija" in Univerzitet u Beogradu, Mašinski fakultet (2021),
https://hdl.handle.net/21.15107/rcub_machinery_6383 .

TY  - GEN
AU  - Prokić Cvetković, Radica
AU  - Radaković, Zoran
AU  - Popović, Olivera
AU  - Bakić, Gordana
AU  - Đukić, Miloš
AU  - Rajičić, Bratislav
AU  - Milošević, Nenad
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6328
AB  - Priručnik za lab.ispitivanja iz Mašinskih materijala 1 i Mašinskih materijala 2
PB  - Univerzitet u Beogradu, Mašinski fakultet
T2  - Univerzitet u Beogradu, Mašinski fakultet
T1  - Mašinski materijali 1 i Mašinski materijali 2 - Priručnik za laboratorijske vežbe
VL  - II
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6328
ER  - 

@misc{
author = "Prokić Cvetković, Radica and Radaković, Zoran and Popović, Olivera and Bakić, Gordana and Đukić, Miloš and Rajičić, Bratislav and Milošević, Nenad",
year = "2021",
abstract = "Priručnik za lab.ispitivanja iz Mašinskih materijala 1 i Mašinskih materijala 2",
publisher = "Univerzitet u Beogradu, Mašinski fakultet",
journal = "Univerzitet u Beogradu, Mašinski fakultet",
title = "Mašinski materijali 1 i Mašinski materijali 2 - Priručnik za laboratorijske vežbe",
volume = "II",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6328"
}

Prokić Cvetković, R., Radaković, Z., Popović, O., Bakić, G., Đukić, M., Rajičić, B.,& Milošević, N.. (2021). Mašinski materijali 1 i Mašinski materijali 2 - Priručnik za laboratorijske vežbe. in Univerzitet u Beogradu, Mašinski fakultet
Univerzitet u Beogradu, Mašinski fakultet., II.
https://hdl.handle.net/21.15107/rcub_machinery_6328

Prokić Cvetković R, Radaković Z, Popović O, Bakić G, Đukić M, Rajičić B, Milošević N. Mašinski materijali 1 i Mašinski materijali 2 - Priručnik za laboratorijske vežbe. in Univerzitet u Beogradu, Mašinski fakultet. 2021;II.
https://hdl.handle.net/21.15107/rcub_machinery_6328 .

Prokić Cvetković, Radica, Radaković, Zoran, Popović, Olivera, Bakić, Gordana, Đukić, Miloš, Rajičić, Bratislav, Milošević, Nenad, "Mašinski materijali 1 i Mašinski materijali 2 - Priručnik za laboratorijske vežbe" in Univerzitet u Beogradu, Mašinski fakultet, II (2021),
https://hdl.handle.net/21.15107/rcub_machinery_6328 .

TY  - BOOK
AU  - Prokić Cvetković, Radica
AU  - Popović, Olivera
AU  - Bakić, Gordana
AU  - Đukić, Miloš
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/6326
AB  - Predgovor
Predmeti koji nas okružuju izrađeni su od različitih vrsta materijala, pa je poznavanje njihovih
osobina, načina proizvodnje, postojanosti u radnom okruženju, mogućnosti nabavke
i cene od velikog značaja pri izboru materijala za konkretnu namenu. Tendencije savremenog
načina života su usmerene ka smanjenju potrošnje energije i zaštite životne sredine, pa
se pred inženjere, projektante i konstruktore postavljaju zahtevi da izaberu materijal koji
ima što manju cenu i masu uz istovremeno zadovoljavajuće fizičke, hemijske, mehaničke,
tehnološke ili neke specifične osobine. U svetu se dosta novca ulaže u istraživačke i razvojne
projekte za razvoj novih materijala ili modifikaciju osobina postojećih materijala.
Ovaj udžbenik je namenjen studentima Osnovnih akademskih studija koji slušaju predmet
Mašinski materijali 2 sa fondom časova 5 u trećem semestru na Mašinskom fakultetu
Univerziteta u Beogradu. Gradivo u ovom udžbeniku prati kontinuitet gradiva izloženog
u knjizi Mašinski materijali 1, pa je za praćenje nastave iz predmeta Mašinski materijali 2
neophodno predznanje iz tog predmeta. Cilj autora je bio da ovako složenu problematiku
što jednostavnije prikažu, a da se pri tome održi odgovarajući akademski nivo. Uvek, kada
je to bilo moguće, autori su se potrudili da odgovarajuće objašnjenje ilustruju dobrom
slikom.
Plan i program predmeta Mašinski materijali 2 se sastoji iz dve celine i to: metalni materijali
i postupci spajanja materijala zavarivanjem i lemljenjem.
U prvom delu udžbenika opisani su metalni materijali, njihov način dobijanja, kao i fizička,
hemijska i mehanička svojstva. Od metalnih materijala najviše pažnje je posvećeno
železu i njegovim legurama jer su to još uvek najzastupljeniji konstrukcioni materijali u
mašinstvu. Železo gradi dve grupe legura: čelike i gvožđa; pa je opisan način njihovog
dobijanja, mehaničke i fizičke osobine, kao i njihovo označavanje po najnovijem standardu.
Takođe su opisane neravnotežne transformacije pri hlađenju čelika, kao i termička,
termomehanička i termohemijska obrada. U nastavku je dosta pažnje posvećeno aluminijumu
i njegovim legurama, jer su oni po zastupljenosti odmah posle čelika. Bakar, nikl,
titan i drugi obojeni metali su takođe prikazani.
U drugom delu udžbenika dati su osnovni pojmovi u zavarivanju i opisani su konvencionalni
postupci zavarivanja. Takođe su prikazana ispitivanja zavarenih spojeva metodama sa razaranjem
i bez razaranja, greške u zavarenim spojevima i nivoi kvaliteta zavarenih spojeva.
Kao postupak spajanja materijala, pored zavarivanja, može da se koristi i lemljenje,
pa su na kraju opisani njegovi osnovni principi.
Na kraju knjige navedena je literatura koja može da se koristi u cilju proširenja znanja iz
ovih oblasti.
Autori se zahvaljuju recenzentima, dr Nenadu Radoviću, redovnom profesoru Tehnološkometalurškog
fakulteta Univerziteta u Beogradu i dr Aleksandru Sedmaku, profesoru emeritus
Mašinskog fakulteta Univerziteta u Beogradu, koji su svojim korisnim predlozima
i sugestijama doprineli poboljšanju kvaliteta knjige. Takođe se zahvaljujemo i kolegama
iz laboratorije "KonMat" koji su nam ustupili slike iz IBR-a, kao i kolegi dr Radovanu
Puzoviću, profesoru Mašinskog fakulteta, na nesebičnoj pomoći.
I na kraju, ne kao manje važno, želimo da istaknemo da ova knjiga sigurno na bi ovako
izgledala da nije bilo ogromnog truda i strpljenja prof. dr Dragana Cvetkovića, i na tome
mu neizmerno hvala.
PB  - Univerzitet u Beogradu, Mašinski fakultet
T2  - Univerzitet u Beogradu, Mašinski fakultet
T1  - Mašinski materijali 2
UR  - https://hdl.handle.net/21.15107/rcub_machinery_6326
ER  - 

@book{
author = "Prokić Cvetković, Radica and Popović, Olivera and Bakić, Gordana and Đukić, Miloš",
year = "2021",
abstract = "Predgovor
Predmeti koji nas okružuju izrađeni su od različitih vrsta materijala, pa je poznavanje njihovih
osobina, načina proizvodnje, postojanosti u radnom okruženju, mogućnosti nabavke
i cene od velikog značaja pri izboru materijala za konkretnu namenu. Tendencije savremenog
načina života su usmerene ka smanjenju potrošnje energije i zaštite životne sredine, pa
se pred inženjere, projektante i konstruktore postavljaju zahtevi da izaberu materijal koji
ima što manju cenu i masu uz istovremeno zadovoljavajuće fizičke, hemijske, mehaničke,
tehnološke ili neke specifične osobine. U svetu se dosta novca ulaže u istraživačke i razvojne
projekte za razvoj novih materijala ili modifikaciju osobina postojećih materijala.
Ovaj udžbenik je namenjen studentima Osnovnih akademskih studija koji slušaju predmet
Mašinski materijali 2 sa fondom časova 5 u trećem semestru na Mašinskom fakultetu
Univerziteta u Beogradu. Gradivo u ovom udžbeniku prati kontinuitet gradiva izloženog
u knjizi Mašinski materijali 1, pa je za praćenje nastave iz predmeta Mašinski materijali 2
neophodno predznanje iz tog predmeta. Cilj autora je bio da ovako složenu problematiku
što jednostavnije prikažu, a da se pri tome održi odgovarajući akademski nivo. Uvek, kada
je to bilo moguće, autori su se potrudili da odgovarajuće objašnjenje ilustruju dobrom
slikom.
Plan i program predmeta Mašinski materijali 2 se sastoji iz dve celine i to: metalni materijali
i postupci spajanja materijala zavarivanjem i lemljenjem.
U prvom delu udžbenika opisani su metalni materijali, njihov način dobijanja, kao i fizička,
hemijska i mehanička svojstva. Od metalnih materijala najviše pažnje je posvećeno
železu i njegovim legurama jer su to još uvek najzastupljeniji konstrukcioni materijali u
mašinstvu. Železo gradi dve grupe legura: čelike i gvožđa; pa je opisan način njihovog
dobijanja, mehaničke i fizičke osobine, kao i njihovo označavanje po najnovijem standardu.
Takođe su opisane neravnotežne transformacije pri hlađenju čelika, kao i termička,
termomehanička i termohemijska obrada. U nastavku je dosta pažnje posvećeno aluminijumu
i njegovim legurama, jer su oni po zastupljenosti odmah posle čelika. Bakar, nikl,
titan i drugi obojeni metali su takođe prikazani.
U drugom delu udžbenika dati su osnovni pojmovi u zavarivanju i opisani su konvencionalni
postupci zavarivanja. Takođe su prikazana ispitivanja zavarenih spojeva metodama sa razaranjem
i bez razaranja, greške u zavarenim spojevima i nivoi kvaliteta zavarenih spojeva.
Kao postupak spajanja materijala, pored zavarivanja, može da se koristi i lemljenje,
pa su na kraju opisani njegovi osnovni principi.
Na kraju knjige navedena je literatura koja može da se koristi u cilju proširenja znanja iz
ovih oblasti.
Autori se zahvaljuju recenzentima, dr Nenadu Radoviću, redovnom profesoru Tehnološkometalurškog
fakulteta Univerziteta u Beogradu i dr Aleksandru Sedmaku, profesoru emeritus
Mašinskog fakulteta Univerziteta u Beogradu, koji su svojim korisnim predlozima
i sugestijama doprineli poboljšanju kvaliteta knjige. Takođe se zahvaljujemo i kolegama
iz laboratorije "KonMat" koji su nam ustupili slike iz IBR-a, kao i kolegi dr Radovanu
Puzoviću, profesoru Mašinskog fakulteta, na nesebičnoj pomoći.
I na kraju, ne kao manje važno, želimo da istaknemo da ova knjiga sigurno na bi ovako
izgledala da nije bilo ogromnog truda i strpljenja prof. dr Dragana Cvetkovića, i na tome
mu neizmerno hvala.",
publisher = "Univerzitet u Beogradu, Mašinski fakultet",
journal = "Univerzitet u Beogradu, Mašinski fakultet",
title = "Mašinski materijali 2",
url = "https://hdl.handle.net/21.15107/rcub_machinery_6326"
}

Prokić Cvetković, R., Popović, O., Bakić, G.,& Đukić, M.. (2021). Mašinski materijali 2. in Univerzitet u Beogradu, Mašinski fakultet
Univerzitet u Beogradu, Mašinski fakultet..
https://hdl.handle.net/21.15107/rcub_machinery_6326

Prokić Cvetković R, Popović O, Bakić G, Đukić M. Mašinski materijali 2. in Univerzitet u Beogradu, Mašinski fakultet. 2021;.
https://hdl.handle.net/21.15107/rcub_machinery_6326 .

Prokić Cvetković, Radica, Popović, Olivera, Bakić, Gordana, Đukić, Miloš, "Mašinski materijali 2" in Univerzitet u Beogradu, Mašinski fakultet (2021),
https://hdl.handle.net/21.15107/rcub_machinery_6326 .

TY  - CONF
AU  - Bakić, Gordana
AU  - Peruničić, Vesna
AU  - Gajić, Ivan
AU  - Bezmarević, Savo
AU  - Đukić, Miloš
AU  - Rajičić, Bratislav
AU  - Maslarević, Aleksandar
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4290
AB  - Nabavka visoko vrednih delova termoenergetskih postrojenja, kao što su komponente parovoda sveže pare koje su izložene najvišim radnim parametrima tokom rada postrojenja, podrazumeva definisanje vrlo preciznih zahteva za isporuku delova opreme. Kada postoje precizni zahtevi za gotov proizvod, ispručioci moraju strogo da kontrolišu parametre proizvodnje delova. Značaj svakog od zahteva često promiče tehničkim licima, i onima koji nabavljaju i onima koji isporučuju opremu, posebno ako zahtevi nisu sadržani u standardima, već proističu iz saznanja koja su domen usko specijalizovanih naučnih oblasti. U ovom radu je na primeru komponenti parovoda sveže pare izrađenih od čelika X10CrMoVNb91 koje su isporučene sa nehomogenim i u nekom delu sniženim osobinama prikazan značaj kako ulazne kontrole, tako i poštovanja svakog od tehničkih zahteva. Takođe, ponuđeno je i rešenje šta raditi sa takvom opremom i ocenjeno je koliko dugo bi ona mogla bezbedno da radi sa nižim osobinama.
AB  - Procurement of highly valuable parts of thermal power plants, such as fresh steam pipeline components that are exposed to the highest operating parameters during the operation of the plant, implies defining very precise requirements for the delivery of equipment parts. When there are precise requirements for the finished product, the producers need to obtained strictly control of the production parameters. The importance of each of the requirements is often oversighted by technical persons, both those who procure and those who supply equipment, especially if the requirements are not contained in the standards, but derive from knowledge that is the domain of narrowly specialized scientific fields. In this paper, the importance of both input control and compliance with each of the technical requirements is shown on the example of fresh steam steam pipe components made of X10CrMoVNb91 steel that are delivered with inhomogeneous and in some parts reduced properties. Also, a solution was offered on what to do with such equipment and it was assessed how long it could work safely with lower properties.
PB  - Belgrade : Society of Thermal Engineers of Serbia
C3  - Full Papers Proceedings of International Conference "Power Plants 2021" November 17-18TH, 2021, Belgrade, Serbia
T1  - Eksploataciona upotrebljivost materijala X10CrMoVNb91 sa nižim osobinama od onih zahtevanih standardomi značaj tehničkih zahteva
T1  - Serviceability of X10CrMoVNb91 material with lower properties than required by standard and the importance of technical delivery requirements
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4290
ER  - 

@conference{
author = "Bakić, Gordana and Peruničić, Vesna and Gajić, Ivan and Bezmarević, Savo and Đukić, Miloš and Rajičić, Bratislav and Maslarević, Aleksandar",
year = "2021",
abstract = "Nabavka visoko vrednih delova termoenergetskih postrojenja, kao što su komponente parovoda sveže pare koje su izložene najvišim radnim parametrima tokom rada postrojenja, podrazumeva definisanje vrlo preciznih zahteva za isporuku delova opreme. Kada postoje precizni zahtevi za gotov proizvod, ispručioci moraju strogo da kontrolišu parametre proizvodnje delova. Značaj svakog od zahteva često promiče tehničkim licima, i onima koji nabavljaju i onima koji isporučuju opremu, posebno ako zahtevi nisu sadržani u standardima, već proističu iz saznanja koja su domen usko specijalizovanih naučnih oblasti. U ovom radu je na primeru komponenti parovoda sveže pare izrađenih od čelika X10CrMoVNb91 koje su isporučene sa nehomogenim i u nekom delu sniženim osobinama prikazan značaj kako ulazne kontrole, tako i poštovanja svakog od tehničkih zahteva. Takođe, ponuđeno je i rešenje šta raditi sa takvom opremom i ocenjeno je koliko dugo bi ona mogla bezbedno da radi sa nižim osobinama., Procurement of highly valuable parts of thermal power plants, such as fresh steam pipeline components that are exposed to the highest operating parameters during the operation of the plant, implies defining very precise requirements for the delivery of equipment parts. When there are precise requirements for the finished product, the producers need to obtained strictly control of the production parameters. The importance of each of the requirements is often oversighted by technical persons, both those who procure and those who supply equipment, especially if the requirements are not contained in the standards, but derive from knowledge that is the domain of narrowly specialized scientific fields. In this paper, the importance of both input control and compliance with each of the technical requirements is shown on the example of fresh steam steam pipe components made of X10CrMoVNb91 steel that are delivered with inhomogeneous and in some parts reduced properties. Also, a solution was offered on what to do with such equipment and it was assessed how long it could work safely with lower properties.",
publisher = "Belgrade : Society of Thermal Engineers of Serbia",
journal = "Full Papers Proceedings of International Conference "Power Plants 2021" November 17-18TH, 2021, Belgrade, Serbia",
title = "Eksploataciona upotrebljivost materijala X10CrMoVNb91 sa nižim osobinama od onih zahtevanih standardomi značaj tehničkih zahteva, Serviceability of X10CrMoVNb91 material with lower properties than required by standard and the importance of technical delivery requirements",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4290"
}

Bakić, G., Peruničić, V., Gajić, I., Bezmarević, S., Đukić, M., Rajičić, B.,& Maslarević, A.. (2021). Eksploataciona upotrebljivost materijala X10CrMoVNb91 sa nižim osobinama od onih zahtevanih standardomi značaj tehničkih zahteva. in Full Papers Proceedings of International Conference "Power Plants 2021" November 17-18TH, 2021, Belgrade, Serbia
Belgrade : Society of Thermal Engineers of Serbia..
https://hdl.handle.net/21.15107/rcub_machinery_4290

Bakić G, Peruničić V, Gajić I, Bezmarević S, Đukić M, Rajičić B, Maslarević A. Eksploataciona upotrebljivost materijala X10CrMoVNb91 sa nižim osobinama od onih zahtevanih standardomi značaj tehničkih zahteva. in Full Papers Proceedings of International Conference "Power Plants 2021" November 17-18TH, 2021, Belgrade, Serbia. 2021;.
https://hdl.handle.net/21.15107/rcub_machinery_4290 .

Bakić, Gordana, Peruničić, Vesna, Gajić, Ivan, Bezmarević, Savo, Đukić, Miloš, Rajičić, Bratislav, Maslarević, Aleksandar, "Eksploataciona upotrebljivost materijala X10CrMoVNb91 sa nižim osobinama od onih zahtevanih standardomi značaj tehničkih zahteva" in Full Papers Proceedings of International Conference "Power Plants 2021" November 17-18TH, 2021, Belgrade, Serbia (2021),
https://hdl.handle.net/21.15107/rcub_machinery_4290 .

TY  - JOUR
AU  - Jovanović, Jelena
AU  - Ćirković, Jovana
AU  - Radojković, Aleksandar
AU  - Mutavdzić, Dragosav
AU  - Tanasijević, Gordana
AU  - Joksimović, Kristina
AU  - Bakić, Gordana
AU  - Branković, Goran
AU  - Branković, Zorica
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3527
AB  - This investigation was aimed to develop films and coatings based on natural biopolymers and active components, with physicochemical and functional properties for application in antimicrobial packaging. Biopolymer films were obtained from emulsions and dispersions by casting method. Coatings were formed by the application of emulsions on existing packaging. Synthesis of emulsions and dispersions were performed by combining biopolymers (chitosan-gelatin, pectin-gelatin) with lemongrass essential oil (LEO), Zn(CH3COO)2.2H2O, or ZnO, as active components. Fourier transform infrared (FTIR) spectra of the films showed that the addition of glycerol contributed to the forming of strong hydrogen bonds between glycerol and chitosan-gelatin or pectin-gelatin composites, facilitating the process of polymer branching, which is substantial for encapsulation. Thermal analyses revealed two characteristic processes occurring at 110 degrees C (water evaporation) and within 215-235 degrees C (degradation of polysaccharide and glycerol). Major weight losses were observed at 290 degrees C (chitosan-gelatin films) and 215 degrees C (pectin-gelatin films). The chitosan-gelatin films exhibited a lower degree of solubility (31-21%), and better mechanical properties comparing with the pectin-gelatin films. The chitosan-gelatin emulsions and dispersions exhibited a higher antibacterial effect in vitro against E. coli, B. subtilis, and S. aureus. In the case of the pectin-gelatin emulsions, the impact of LEO on the antibacterial activity was evident. The effects of biopolymer coatings on the development of microorganisms on fresh raspberries (Rubus idaeus L.) were performed in vivo during eight days of raspberry storage at refrigerator temperature. The tested coatings extended the shelf life of stored raspberries from four to eight days. The synergistic effect between LEO and ZnO or Zn-Ac was observed both in vivo and in vitro.
PB  - Elsevier Science Sa, Lausanne
T2  - Progress in Organic Coatings
T1  - Chitosan and pectin-based films and coatings with active components for application in antimicrobial food packaging
VL  - 158
DO  - 10.1016/j.porgcoat.2021.106349
ER  - 

@article{
author = "Jovanović, Jelena and Ćirković, Jovana and Radojković, Aleksandar and Mutavdzić, Dragosav and Tanasijević, Gordana and Joksimović, Kristina and Bakić, Gordana and Branković, Goran and Branković, Zorica",
year = "2021",
abstract = "This investigation was aimed to develop films and coatings based on natural biopolymers and active components, with physicochemical and functional properties for application in antimicrobial packaging. Biopolymer films were obtained from emulsions and dispersions by casting method. Coatings were formed by the application of emulsions on existing packaging. Synthesis of emulsions and dispersions were performed by combining biopolymers (chitosan-gelatin, pectin-gelatin) with lemongrass essential oil (LEO), Zn(CH3COO)2.2H2O, or ZnO, as active components. Fourier transform infrared (FTIR) spectra of the films showed that the addition of glycerol contributed to the forming of strong hydrogen bonds between glycerol and chitosan-gelatin or pectin-gelatin composites, facilitating the process of polymer branching, which is substantial for encapsulation. Thermal analyses revealed two characteristic processes occurring at 110 degrees C (water evaporation) and within 215-235 degrees C (degradation of polysaccharide and glycerol). Major weight losses were observed at 290 degrees C (chitosan-gelatin films) and 215 degrees C (pectin-gelatin films). The chitosan-gelatin films exhibited a lower degree of solubility (31-21%), and better mechanical properties comparing with the pectin-gelatin films. The chitosan-gelatin emulsions and dispersions exhibited a higher antibacterial effect in vitro against E. coli, B. subtilis, and S. aureus. In the case of the pectin-gelatin emulsions, the impact of LEO on the antibacterial activity was evident. The effects of biopolymer coatings on the development of microorganisms on fresh raspberries (Rubus idaeus L.) were performed in vivo during eight days of raspberry storage at refrigerator temperature. The tested coatings extended the shelf life of stored raspberries from four to eight days. The synergistic effect between LEO and ZnO or Zn-Ac was observed both in vivo and in vitro.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Progress in Organic Coatings",
title = "Chitosan and pectin-based films and coatings with active components for application in antimicrobial food packaging",
volume = "158",
doi = "10.1016/j.porgcoat.2021.106349"
}

Jovanović, J., Ćirković, J., Radojković, A., Mutavdzić, D., Tanasijević, G., Joksimović, K., Bakić, G., Branković, G.,& Branković, Z.. (2021). Chitosan and pectin-based films and coatings with active components for application in antimicrobial food packaging. in Progress in Organic Coatings
Elsevier Science Sa, Lausanne., 158.
https://doi.org/10.1016/j.porgcoat.2021.106349

Jovanović J, Ćirković J, Radojković A, Mutavdzić D, Tanasijević G, Joksimović K, Bakić G, Branković G, Branković Z. Chitosan and pectin-based films and coatings with active components for application in antimicrobial food packaging. in Progress in Organic Coatings. 2021;158.
doi:10.1016/j.porgcoat.2021.106349 .

Jovanović, Jelena, Ćirković, Jovana, Radojković, Aleksandar, Mutavdzić, Dragosav, Tanasijević, Gordana, Joksimović, Kristina, Bakić, Gordana, Branković, Goran, Branković, Zorica, "Chitosan and pectin-based films and coatings with active components for application in antimicrobial food packaging" in Progress in Organic Coatings, 158 (2021),
https://doi.org/10.1016/j.porgcoat.2021.106349 . .

TY  - JOUR
AU  - Milošević, Nenad
AU  - Sedmak, Aleksandar
AU  - Bakić, Gordana
AU  - Lazić, Vukić
AU  - Milošević, Miloš
AU  - Mladenović, Goran
AU  - Maslarević, Aleksandar
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3485
AB  - This paper presents new methodology for determining the actual stress-strain diagram based on analytical equations, in combination with numerical and experimental data. The first step was to use the 3D digital image correlation (DIC) to estimate true stress-strain diagram by replacing common analytical expression for contraction with measured values. Next step was to estimate the stress concentration by using a new methodology, based on recently introduced analytical expressions and numerical verification by the finite element method (FEM), to obtain actual stress-strain diagrams, as named in this paper. The essence of new methodology is to introduce stress concentration factor into the procedure of actual stress evaluation. New methodology is then applied to determine actual stress-strain diagrams for two undermatched welded joints with different rectangular cross-section and groove shapes, made of martensitic steels X10 CrMoVNb 9-1 and Armox 500T. Results indicated that new methodology is a general one, since it is not dependent on welded joint material and geometry.
PB  - MDPI, Basel
T2  - Materials
T1  - Determination of the Actual Stress-Strain Diagram for Undermatching Welded Joint Using DIC and FEM
IS  - 16
VL  - 14
DO  - 10.3390/ma14164691
ER  - 

@article{
author = "Milošević, Nenad and Sedmak, Aleksandar and Bakić, Gordana and Lazić, Vukić and Milošević, Miloš and Mladenović, Goran and Maslarević, Aleksandar",
year = "2021",
abstract = "This paper presents new methodology for determining the actual stress-strain diagram based on analytical equations, in combination with numerical and experimental data. The first step was to use the 3D digital image correlation (DIC) to estimate true stress-strain diagram by replacing common analytical expression for contraction with measured values. Next step was to estimate the stress concentration by using a new methodology, based on recently introduced analytical expressions and numerical verification by the finite element method (FEM), to obtain actual stress-strain diagrams, as named in this paper. The essence of new methodology is to introduce stress concentration factor into the procedure of actual stress evaluation. New methodology is then applied to determine actual stress-strain diagrams for two undermatched welded joints with different rectangular cross-section and groove shapes, made of martensitic steels X10 CrMoVNb 9-1 and Armox 500T. Results indicated that new methodology is a general one, since it is not dependent on welded joint material and geometry.",
publisher = "MDPI, Basel",
journal = "Materials",
title = "Determination of the Actual Stress-Strain Diagram for Undermatching Welded Joint Using DIC and FEM",
number = "16",
volume = "14",
doi = "10.3390/ma14164691"
}

Milošević, N., Sedmak, A., Bakić, G., Lazić, V., Milošević, M., Mladenović, G.,& Maslarević, A.. (2021). Determination of the Actual Stress-Strain Diagram for Undermatching Welded Joint Using DIC and FEM. in Materials
MDPI, Basel., 14(16).
https://doi.org/10.3390/ma14164691

Milošević N, Sedmak A, Bakić G, Lazić V, Milošević M, Mladenović G, Maslarević A. Determination of the Actual Stress-Strain Diagram for Undermatching Welded Joint Using DIC and FEM. in Materials. 2021;14(16).
doi:10.3390/ma14164691 .

Milošević, Nenad, Sedmak, Aleksandar, Bakić, Gordana, Lazić, Vukić, Milošević, Miloš, Mladenović, Goran, Maslarević, Aleksandar, "Determination of the Actual Stress-Strain Diagram for Undermatching Welded Joint Using DIC and FEM" in Materials, 14, no. 16 (2021),
https://doi.org/10.3390/ma14164691 . .

TY  - GEN
AU  - Petrović, Andrija
AU  - Filipović, Jovan
AU  - Petrović, Aleksandar
AU  - Bakić, Gordana
AU  - Veljić, Darko
AU  - Bugarić, Uglješa
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5842
AB  - Ејекторска пумпа за хидротранспорт високо абразивне шљаке и пепела
првенствено је намењена за избацивање шљаке и пепела из котлова, као примарни систем
за транспорт или као секундарни систем за транспорт (уколико већ постоје тзв Д пумпе).
Овакав тип ејекторске пумпе може се врло лако димензионо прилагодити било ком типу
котла и било каквој врсти абразивних материјала (сачма, песак итд.)
T2  - Техничко решење (M82) је прихваћено од стране Матичног научног одбора за машинство и индустријски софтвер, 2020
T1  - Ејекторска пумпа за хидро транспорт високо абразивне шљаке и пепела
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5842
ER  - 

@misc{
author = "Petrović, Andrija and Filipović, Jovan and Petrović, Aleksandar and Bakić, Gordana and Veljić, Darko and Bugarić, Uglješa",
year = "2020",
abstract = "Ејекторска пумпа за хидротранспорт високо абразивне шљаке и пепела
првенствено је намењена за избацивање шљаке и пепела из котлова, као примарни систем
за транспорт или као секундарни систем за транспорт (уколико већ постоје тзв Д пумпе).
Овакав тип ејекторске пумпе може се врло лако димензионо прилагодити било ком типу
котла и било каквој врсти абразивних материјала (сачма, песак итд.)",
journal = "Техничко решење (M82) је прихваћено од стране Матичног научног одбора за машинство и индустријски софтвер, 2020",
title = "Ејекторска пумпа за хидро транспорт високо абразивне шљаке и пепела",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5842"
}

Petrović, A., Filipović, J., Petrović, A., Bakić, G., Veljić, D.,& Bugarić, U.. (2020). Ејекторска пумпа за хидро транспорт високо абразивне шљаке и пепела. in Техничко решење (M82) је прихваћено од стране Матичног научног одбора за машинство и индустријски софтвер, 2020.
https://hdl.handle.net/21.15107/rcub_machinery_5842

Petrović A, Filipović J, Petrović A, Bakić G, Veljić D, Bugarić U. Ејекторска пумпа за хидро транспорт високо абразивне шљаке и пепела. in Техничко решење (M82) је прихваћено од стране Матичног научног одбора за машинство и индустријски софтвер, 2020. 2020;.
https://hdl.handle.net/21.15107/rcub_machinery_5842 .

Petrović, Andrija, Filipović, Jovan, Petrović, Aleksandar, Bakić, Gordana, Veljić, Darko, Bugarić, Uglješa, "Ејекторска пумпа за хидро транспорт високо абразивне шљаке и пепела" in Техничко решење (M82) је прихваћено од стране Матичног научног одбора за машинство и индустријски софтвер, 2020 (2020),
https://hdl.handle.net/21.15107/rcub_machinery_5842 .

TY  - PAT
AU  - Maslarević, Aleksandar
AU  - Bakić, Gordana
AU  - Đukić, Miloš
AU  - Rajičić, Bratislav
AU  - Mitrović, Nenad
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4375
T1  - Uređaj za eroziono ispitivanje materijala čvrstim česticama
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4375
ER  - 

@misc{
author = "Maslarević, Aleksandar and Bakić, Gordana and Đukić, Miloš and Rajičić, Bratislav and Mitrović, Nenad",
year = "2020",
title = "Uređaj za eroziono ispitivanje materijala čvrstim česticama",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4375"
}

Maslarević, A., Bakić, G., Đukić, M., Rajičić, B.,& Mitrović, N.. (2020). Uređaj za eroziono ispitivanje materijala čvrstim česticama. .
https://hdl.handle.net/21.15107/rcub_machinery_4375

Maslarević A, Bakić G, Đukić M, Rajičić B, Mitrović N. Uređaj za eroziono ispitivanje materijala čvrstim česticama. 2020;.
https://hdl.handle.net/21.15107/rcub_machinery_4375 .

Maslarević, Aleksandar, Bakić, Gordana, Đukić, Miloš, Rajičić, Bratislav, Mitrović, Nenad, "Uređaj za eroziono ispitivanje materijala čvrstim česticama" (2020),
https://hdl.handle.net/21.15107/rcub_machinery_4375 .

TY  - JOUR
AU  - Pavkov, Vladimir
AU  - Bakić, Gordana
AU  - Maksimović, Vesna
AU  - Petrović, Aleksandar
AU  - Mitrović, Nenad
AU  - Mišković, Žarko
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3286
AB  - One of the important tasks of evaluating the integrity of mechanical process elements and structures is to determine the local mechanical properties. In this paper, experimental and numerical analyses of the mechanical behavior of an output inter-heater tube, made of 12H1MF heat-resistant steel, was performed after 200,000 h of exploitation. During exploitation, the tube was exposed to various mechanisms of damage including gas corrosion. The tube was cut from a pipe system during reparations of a thermal power plant, and then cold-deformed by bending to obtain a U-bend tube, which was then used in the experiment. For this purpose, a specimen holder made of structural steel S235 was specifically designed to test such a sample. The U-bend tube was then exposed to the external compressive load during the experiment. Experimental research was based on the application of the 3D digital image correlation (DIC), while a finite element method (FEM) was applied in numerical simulation performed by using the Abaqus software package. The 3D DIC is an optical and contactless experimental method that allows measurements of displacement fields and deformations of geometrically complex structures. The Aramis system was used for the experimental analysis as well as for verification of the numerical model. During the experiment, the von Mises strain field was measured at the top of the U-bend tube, in the tightening zone, as it represents a critical place for crack initiation and propagation during the work of an inter-heater. Based on the obtained results and a comparative analysis of experimental and numerical values of the von Mises strain field at the U-bend tube, deviation of the model predictions of about 18 % was determined. The FEM predicted smaller values of the von Mises strain field compared to the DIC method. This is the result of an incomplete geometry applied in the model due to deformation that occurred in the bend zone of the U-bend tube, loss of material and the tube surface damage due to the influence of gas corrosion during 200,000 h of exploitation. Experimental analysis has confirmed that the U-bend tube, after 200,000 h of exploitation, can remain in service even if it is damaged due to the effect of gas corrosion.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska Industrija
T1  - Experimental and numerical analyses of an U-bend tube made of an output inter-heater tube after exploitation
EP  - 63
IS  - 1
SP  - 51
VL  - 74
DO  - 10.2298/HEMIND190905005P
ER  - 

@article{
author = "Pavkov, Vladimir and Bakić, Gordana and Maksimović, Vesna and Petrović, Aleksandar and Mitrović, Nenad and Mišković, Žarko",
year = "2020",
abstract = "One of the important tasks of evaluating the integrity of mechanical process elements and structures is to determine the local mechanical properties. In this paper, experimental and numerical analyses of the mechanical behavior of an output inter-heater tube, made of 12H1MF heat-resistant steel, was performed after 200,000 h of exploitation. During exploitation, the tube was exposed to various mechanisms of damage including gas corrosion. The tube was cut from a pipe system during reparations of a thermal power plant, and then cold-deformed by bending to obtain a U-bend tube, which was then used in the experiment. For this purpose, a specimen holder made of structural steel S235 was specifically designed to test such a sample. The U-bend tube was then exposed to the external compressive load during the experiment. Experimental research was based on the application of the 3D digital image correlation (DIC), while a finite element method (FEM) was applied in numerical simulation performed by using the Abaqus software package. The 3D DIC is an optical and contactless experimental method that allows measurements of displacement fields and deformations of geometrically complex structures. The Aramis system was used for the experimental analysis as well as for verification of the numerical model. During the experiment, the von Mises strain field was measured at the top of the U-bend tube, in the tightening zone, as it represents a critical place for crack initiation and propagation during the work of an inter-heater. Based on the obtained results and a comparative analysis of experimental and numerical values of the von Mises strain field at the U-bend tube, deviation of the model predictions of about 18 % was determined. The FEM predicted smaller values of the von Mises strain field compared to the DIC method. This is the result of an incomplete geometry applied in the model due to deformation that occurred in the bend zone of the U-bend tube, loss of material and the tube surface damage due to the influence of gas corrosion during 200,000 h of exploitation. Experimental analysis has confirmed that the U-bend tube, after 200,000 h of exploitation, can remain in service even if it is damaged due to the effect of gas corrosion.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska Industrija",
title = "Experimental and numerical analyses of an U-bend tube made of an output inter-heater tube after exploitation",
pages = "63-51",
number = "1",
volume = "74",
doi = "10.2298/HEMIND190905005P"
}

Pavkov, V., Bakić, G., Maksimović, V., Petrović, A., Mitrović, N.,& Mišković, Ž.. (2020). Experimental and numerical analyses of an U-bend tube made of an output inter-heater tube after exploitation. in Hemijska Industrija
Savez hemijskih inženjera, Beograd., 74(1), 51-63.
https://doi.org/10.2298/HEMIND190905005P

Pavkov V, Bakić G, Maksimović V, Petrović A, Mitrović N, Mišković Ž. Experimental and numerical analyses of an U-bend tube made of an output inter-heater tube after exploitation. in Hemijska Industrija. 2020;74(1):51-63.
doi:10.2298/HEMIND190905005P .

Pavkov, Vladimir, Bakić, Gordana, Maksimović, Vesna, Petrović, Aleksandar, Mitrović, Nenad, Mišković, Žarko, "Experimental and numerical analyses of an U-bend tube made of an output inter-heater tube after exploitation" in Hemijska Industrija, 74, no. 1 (2020):51-63,
https://doi.org/10.2298/HEMIND190905005P . .

TY  - JOUR
AU  - Maslarević, Aleksandar
AU  - Bakić, Gordana
AU  - Đukić, Miloš
AU  - Rajičić, Bratislav
AU  - Maksimović, Vesna
AU  - Pavkov, Vladimir
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3336
AB  - In this study, two erosion protection MMC coatings with WC particles were deposited by the plasma transferred arc (PTA) welding. One of the coatings with tungsten carbide WC in the NiBSi matrix (WC/NiBSi), and the second coating WC in NiCrBSi matrix (WC/NiCrBSi) was deposited by the flame spray process on the same substrate material S235JR steel. Experiments were performed using a gas blast sand erosion test facility with high-velocity erodent particles impact (approximately 100 m/s) at different particle impact angles (20 degrees-45 degrees), with an objective to study erosion wear characteristics and mass loss of two MMC coatings. Microstructural characterization of MMC coatings was done by scanning electron microscope equipped with energy-dispersive X-ray spectroscopy, whereas X-ray diffraction analysis was used for identification of present phases. The hardness of coatings was determined by Vickers hardness measurements. WC/NiBSi obtained by the PTA process shows superior hardness and erosion properties.
PB  - Springer India, New Delhi
T2  - Transactions of The Indian Institute of Metals
T1  - Microstructure and Wear Behavior of MMC Coatings Deposited by Plasma Transferred Arc Welding and Thermal Flame Spraying Processes
EP  - 271
IS  - 1
SP  - 259
VL  - 73
DO  - 10.1007/s12666-019-01831-9
ER  - 

@article{
author = "Maslarević, Aleksandar and Bakić, Gordana and Đukić, Miloš and Rajičić, Bratislav and Maksimović, Vesna and Pavkov, Vladimir",
year = "2020",
abstract = "In this study, two erosion protection MMC coatings with WC particles were deposited by the plasma transferred arc (PTA) welding. One of the coatings with tungsten carbide WC in the NiBSi matrix (WC/NiBSi), and the second coating WC in NiCrBSi matrix (WC/NiCrBSi) was deposited by the flame spray process on the same substrate material S235JR steel. Experiments were performed using a gas blast sand erosion test facility with high-velocity erodent particles impact (approximately 100 m/s) at different particle impact angles (20 degrees-45 degrees), with an objective to study erosion wear characteristics and mass loss of two MMC coatings. Microstructural characterization of MMC coatings was done by scanning electron microscope equipped with energy-dispersive X-ray spectroscopy, whereas X-ray diffraction analysis was used for identification of present phases. The hardness of coatings was determined by Vickers hardness measurements. WC/NiBSi obtained by the PTA process shows superior hardness and erosion properties.",
publisher = "Springer India, New Delhi",
journal = "Transactions of The Indian Institute of Metals",
title = "Microstructure and Wear Behavior of MMC Coatings Deposited by Plasma Transferred Arc Welding and Thermal Flame Spraying Processes",
pages = "271-259",
number = "1",
volume = "73",
doi = "10.1007/s12666-019-01831-9"
}

Maslarević, A., Bakić, G., Đukić, M., Rajičić, B., Maksimović, V.,& Pavkov, V.. (2020). Microstructure and Wear Behavior of MMC Coatings Deposited by Plasma Transferred Arc Welding and Thermal Flame Spraying Processes. in Transactions of The Indian Institute of Metals
Springer India, New Delhi., 73(1), 259-271.
https://doi.org/10.1007/s12666-019-01831-9

Maslarević A, Bakić G, Đukić M, Rajičić B, Maksimović V, Pavkov V. Microstructure and Wear Behavior of MMC Coatings Deposited by Plasma Transferred Arc Welding and Thermal Flame Spraying Processes. in Transactions of The Indian Institute of Metals. 2020;73(1):259-271.
doi:10.1007/s12666-019-01831-9 .

Maslarević, Aleksandar, Bakić, Gordana, Đukić, Miloš, Rajičić, Bratislav, Maksimović, Vesna, Pavkov, Vladimir, "Microstructure and Wear Behavior of MMC Coatings Deposited by Plasma Transferred Arc Welding and Thermal Flame Spraying Processes" in Transactions of The Indian Institute of Metals, 73, no. 1 (2020):259-271,
https://doi.org/10.1007/s12666-019-01831-9 . .

TY  - CONF
AU  - Pavkov, Vladimir
AU  - Bakić, Gordana
AU  - Maksimović, Vesna
AU  - Mirković, Miljana
AU  - Luković, Jelena
AU  - Maslarević, Aleksandar
AU  - Matović, Branko
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7327
AB  - Parts of industrial machines and structures are often exposed to aggressive environments, which in a short period of time can cause the loss of their integrity. Depending on working conditions, a surface of the material can be exposed to various mechanisms of damage, of which corrosion damage stands out. Commercial stainless steel have a significant application in making machine parts in the industry because of their outstanding properties. However, the high prices of this material can sometimes be a limiting factor. For this reason, the idea is to replace expensive stainless steel with a composite material with lower price and improved mechanical properties.
Austenitic stainless steel is a material which is widely used in an industry primarily due to good corrosion resistance. Powder of commercial austenitic stainless steel (SURFIT TM 316L) of the diameter from 45 to 63 µm was used, in our experiment. The steel powder has a spherical shape which is obtained by gas atomization. The source of glass was andesite basalt rock from the locality "Donje Jarinje" Leposavic, the Republic of Serbia. Basalt is a hard aluminosilicate rock which has a relatively low melting point and low viscosity. The composite material was manufactured by mechanical mixing of stainless steel powders with freshly crushed basalt rock in diameter about 10 µm. The composite material consists of stainless steel and different content of basalt.
The green compact was obtained by a hydraulic pressing of the mixture, with a pressure of 150 MPa using a steel mold. Sintering is done at 1250 ⁰C an a time of 30 minutes in a high-temperature vacuum furnace.
Semi-quantitative analysis of andesite basalt powder is obtained by energy dispersive X-ray spectrometry (EDS). Starting powder as well as sintered composites were characterized by X-ray diffraction method (XRD), Morphology of powders and microstructure of sintered sample were followed by scanning electron microscope (SEM) and a light optical microscope (LOM). The hardness of the composite material is determined by the VIckers method.
PB  - Faculty of Technology, University of Novi Sad
C3  - Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad
T1  - Synthesis and characterization of metal-glass composite material
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7327
ER  - 

@conference{
author = "Pavkov, Vladimir and Bakić, Gordana and Maksimović, Vesna and Mirković, Miljana and Luković, Jelena and Maslarević, Aleksandar and Matović, Branko",
year = "2019",
abstract = "Parts of industrial machines and structures are often exposed to aggressive environments, which in a short period of time can cause the loss of their integrity. Depending on working conditions, a surface of the material can be exposed to various mechanisms of damage, of which corrosion damage stands out. Commercial stainless steel have a significant application in making machine parts in the industry because of their outstanding properties. However, the high prices of this material can sometimes be a limiting factor. For this reason, the idea is to replace expensive stainless steel with a composite material with lower price and improved mechanical properties.
Austenitic stainless steel is a material which is widely used in an industry primarily due to good corrosion resistance. Powder of commercial austenitic stainless steel (SURFIT TM 316L) of the diameter from 45 to 63 µm was used, in our experiment. The steel powder has a spherical shape which is obtained by gas atomization. The source of glass was andesite basalt rock from the locality "Donje Jarinje" Leposavic, the Republic of Serbia. Basalt is a hard aluminosilicate rock which has a relatively low melting point and low viscosity. The composite material was manufactured by mechanical mixing of stainless steel powders with freshly crushed basalt rock in diameter about 10 µm. The composite material consists of stainless steel and different content of basalt.
The green compact was obtained by a hydraulic pressing of the mixture, with a pressure of 150 MPa using a steel mold. Sintering is done at 1250 ⁰C an a time of 30 minutes in a high-temperature vacuum furnace.
Semi-quantitative analysis of andesite basalt powder is obtained by energy dispersive X-ray spectrometry (EDS). Starting powder as well as sintered composites were characterized by X-ray diffraction method (XRD), Morphology of powders and microstructure of sintered sample were followed by scanning electron microscope (SEM) and a light optical microscope (LOM). The hardness of the composite material is determined by the VIckers method.",
publisher = "Faculty of Technology, University of Novi Sad",
journal = "Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad",
title = "Synthesis and characterization of metal-glass composite material",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7327"
}

Pavkov, V., Bakić, G., Maksimović, V., Mirković, M., Luković, J., Maslarević, A.,& Matović, B.. (2019). Synthesis and characterization of metal-glass composite material. in Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad
Faculty of Technology, University of Novi Sad..
https://hdl.handle.net/21.15107/rcub_machinery_7327

Pavkov V, Bakić G, Maksimović V, Mirković M, Luković J, Maslarević A, Matović B. Synthesis and characterization of metal-glass composite material. in Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad. 2019;.
https://hdl.handle.net/21.15107/rcub_machinery_7327 .

Pavkov, Vladimir, Bakić, Gordana, Maksimović, Vesna, Mirković, Miljana, Luković, Jelena, Maslarević, Aleksandar, Matović, Branko, "Synthesis and characterization of metal-glass composite material" in Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad (2019),
https://hdl.handle.net/21.15107/rcub_machinery_7327 .

TY  - CONF
AU  - Pavkov, Vladimir
AU  - Bakić, Gordana
AU  - Maksimović, Vesna
AU  - Matović, Branko
AU  - Maslarević, Aleksandar
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7347
PB  - Association of Metallurgical Engineers of Serbia, Belgrade, Serbia
C3  - 4th Metallurgical & Materials Engineering Congress of South-East Europe
T1  - Characterization of metal-glass composites material
SP  - 39
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7347
ER  - 

@conference{
author = "Pavkov, Vladimir and Bakić, Gordana and Maksimović, Vesna and Matović, Branko and Maslarević, Aleksandar",
year = "2019",
publisher = "Association of Metallurgical Engineers of Serbia, Belgrade, Serbia",
journal = "4th Metallurgical & Materials Engineering Congress of South-East Europe",
title = "Characterization of metal-glass composites material",
pages = "39",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7347"
}

Pavkov, V., Bakić, G., Maksimović, V., Matović, B.,& Maslarević, A.. (2019). Characterization of metal-glass composites material. in 4th Metallurgical & Materials Engineering Congress of South-East Europe
Association of Metallurgical Engineers of Serbia, Belgrade, Serbia., 39.
https://hdl.handle.net/21.15107/rcub_machinery_7347

Pavkov V, Bakić G, Maksimović V, Matović B, Maslarević A. Characterization of metal-glass composites material. in 4th Metallurgical & Materials Engineering Congress of South-East Europe. 2019;:39.
https://hdl.handle.net/21.15107/rcub_machinery_7347 .

Pavkov, Vladimir, Bakić, Gordana, Maksimović, Vesna, Matović, Branko, Maslarević, Aleksandar, "Characterization of metal-glass composites material" in 4th Metallurgical & Materials Engineering Congress of South-East Europe (2019):39,
https://hdl.handle.net/21.15107/rcub_machinery_7347 .

TY  - CONF
AU  - Pavkov, Vladimir
AU  - Bakić, Gordana
AU  - Maksimović, Vesna
AU  - Maslarević, Aleksandar
AU  - Matović, Branko
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/7326
AB  - The aim of the paper is to create a metal-glass composite material as well as to examine the possibility of using this composite material for industrial application. Powder of commercial austenitic stainless steel (SURFIT TM 316L) of the diameter from 45 to 65 µm was used in this the experiment. The steel powder of the spherical shape is obtained by atomization od gas. The source of glass was basalt rock from the locality "Vrelo" Kopaonik, Republic of Serbia, due to relative low melting point and low viscosity. Composite materials were manufactured by mechanical mixing steel powders with fresh crushed basal rock in diameter below 45 µm. Mixture of basalt content of 10, 30 and 50 wt.% were prepared.
Green compacts were obtained by pressing under pressure of 150 MPa using a steel mold. Thermal treatment is done at 1250 ⁰C for 30, 45 and 60 minutes in a vacuum furnace. Starting powder as well as sintered composites were characterized by X-ray diffraction method (XRD). Morphology of powders and microstructural development were followed by scanning electron microscope (SEM). Mechanical properties were investigated by Vickers hardness.
PB  - Institute for Multidisciplinary Research, University of Belgrade
C3  - Programme ; and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia
T1  - Metal-Glass Composite Material
UR  - https://hdl.handle.net/21.15107/rcub_machinery_7326
ER  - 

@conference{
author = "Pavkov, Vladimir and Bakić, Gordana and Maksimović, Vesna and Maslarević, Aleksandar and Matović, Branko",
year = "2019",
abstract = "The aim of the paper is to create a metal-glass composite material as well as to examine the possibility of using this composite material for industrial application. Powder of commercial austenitic stainless steel (SURFIT TM 316L) of the diameter from 45 to 65 µm was used in this the experiment. The steel powder of the spherical shape is obtained by atomization od gas. The source of glass was basalt rock from the locality "Vrelo" Kopaonik, Republic of Serbia, due to relative low melting point and low viscosity. Composite materials were manufactured by mechanical mixing steel powders with fresh crushed basal rock in diameter below 45 µm. Mixture of basalt content of 10, 30 and 50 wt.% were prepared.
Green compacts were obtained by pressing under pressure of 150 MPa using a steel mold. Thermal treatment is done at 1250 ⁰C for 30, 45 and 60 minutes in a vacuum furnace. Starting powder as well as sintered composites were characterized by X-ray diffraction method (XRD). Morphology of powders and microstructural development were followed by scanning electron microscope (SEM). Mechanical properties were investigated by Vickers hardness.",
publisher = "Institute for Multidisciplinary Research, University of Belgrade",
journal = "Programme ; and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia",
title = "Metal-Glass Composite Material",
url = "https://hdl.handle.net/21.15107/rcub_machinery_7326"
}

Pavkov, V., Bakić, G., Maksimović, V., Maslarević, A.,& Matović, B.. (2019). Metal-Glass Composite Material. in Programme ; and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia
Institute for Multidisciplinary Research, University of Belgrade..
https://hdl.handle.net/21.15107/rcub_machinery_7326

Pavkov V, Bakić G, Maksimović V, Maslarević A, Matović B. Metal-Glass Composite Material. in Programme ; and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia. 2019;.
https://hdl.handle.net/21.15107/rcub_machinery_7326 .

Pavkov, Vladimir, Bakić, Gordana, Maksimović, Vesna, Maslarević, Aleksandar, Matović, Branko, "Metal-Glass Composite Material" in Programme ; and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia (2019),
https://hdl.handle.net/21.15107/rcub_machinery_7326 .