Rajičić, Bratislav

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05872816-c033-44e9-ab35-b573616124bc
  • Rajičić, Bratislav (12)
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Author's Bibliography

Mašinski materijali 1 i Mašinski materijali 2 - Priručnik za laboratorijske vežbe

Prokić Cvetković, Radica; Radaković, Zoran; Popović, Olivera; Bakić, Gordana; Đukić, Miloš; Rajičić, Bratislav; Milošević, Nenad

(Univerzitet u Beogradu, Mašinski fakultet, 2021)

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 .

Evaluation erosion resistance of metal-ceramics coatings

Maslarević, Aleksandar; Bakić, Gordana; Maksimović, Vesna; Đukić, Miloš; Rajičić, Bratislav; Pavkov, Vladimir

(2019)

TY  - CONF
AU  - Maslarević, Aleksandar
AU  - Bakić, Gordana
AU  - Maksimović, Vesna
AU  - Đukić, Miloš
AU  - Rajičić, Bratislav
AU  - Pavkov, Vladimir
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4295
C3  - Book of abstracts / Avanced Rersearch Workshop "Engineering Ceramics 2019" May 12-16 , 2019, Smolenice castle, Slovakia
T1  - Evaluation erosion resistance of metal-ceramics coatings
EP  - 80
SP  - 80
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4295
ER  - 
@conference{
author = "Maslarević, Aleksandar and Bakić, Gordana and Maksimović, Vesna and Đukić, Miloš and Rajičić, Bratislav and Pavkov, Vladimir",
year = "2019",
journal = "Book of abstracts / Avanced Rersearch Workshop "Engineering Ceramics 2019" May 12-16 , 2019, Smolenice castle, Slovakia",
title = "Evaluation erosion resistance of metal-ceramics coatings",
pages = "80-80",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4295"
}
Maslarević, A., Bakić, G., Maksimović, V., Đukić, M., Rajičić, B.,& Pavkov, V.. (2019). Evaluation erosion resistance of metal-ceramics coatings. in Book of abstracts / Avanced Rersearch Workshop "Engineering Ceramics 2019" May 12-16 , 2019, Smolenice castle, Slovakia, 80-80.
https://hdl.handle.net/21.15107/rcub_machinery_4295
Maslarević A, Bakić G, Maksimović V, Đukić M, Rajičić B, Pavkov V. Evaluation erosion resistance of metal-ceramics coatings. in Book of abstracts / Avanced Rersearch Workshop "Engineering Ceramics 2019" May 12-16 , 2019, Smolenice castle, Slovakia. 2019;:80-80.
https://hdl.handle.net/21.15107/rcub_machinery_4295 .
Maslarević, Aleksandar, Bakić, Gordana, Maksimović, Vesna, Đukić, Miloš, Rajičić, Bratislav, Pavkov, Vladimir, "Evaluation erosion resistance of metal-ceramics coatings" in Book of abstracts / Avanced Rersearch Workshop "Engineering Ceramics 2019" May 12-16 , 2019, Smolenice castle, Slovakia (2019):80-80,
https://hdl.handle.net/21.15107/rcub_machinery_4295 .

Hydrogen Embrittlement and Prevention of Industrial Components

Đukić, Miloš; Bakić, Gordana; Rajičić, Bratislav; Šijački Žeravčić, Vera; Sedmak, Aleksandar

(2018)

TY  - CONF
AU  - Đukić, Miloš
AU  - Bakić, Gordana
AU  - Rajičić, Bratislav
AU  - Šijački Žeravčić, Vera
AU  - Sedmak, Aleksandar
PY  - 2018
UR  - https://2018.mse-congress.de/home/
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5519
AB  - Hydrogen damage includes a wide range of environmental types of failure, hydrogen assisted mechanical degradation processes, and hydrogen-material interactions, including hydrogen embrittlement (HE) and material microstructural changes, caused by the presence of hydrogen in metals. Hydrogen embrittlement of iron, steel, and their alloys is extremely interesting phenomena as these materials are widely used in many industrial applications. The coexistence of different HE mechanisms and their simultaneous effects in metallic materials, including steels, is still not well documented, while recognition of the dominant mechanism, one or more, is an extremely challenging and a crucial problem [1]. The implementation of methods for evaluation, control, and prevention of hydrogen assisted mechanical degradation processes and HE in metals, as well as, development of  the future practically-applicable industrial predictive model requires that the variables relevant to the application be incorporated into the basic concept that define all necessary successive steps (5-step approach) for the industrial application [2]. The global 5-step approach in prevention of hydrogen assisted mechanical degradation processes and hydrogen embrittlement in metals for the practical industrial application consists of following steps: (1) phenomenology analysis of hydrogen related degradation (multiscale modeling and simulation of HE phenomena); (2) hydrogen sources and entry into metal/component; (3) structural integrity (SiM) model and (4) predictive maintenance (PdM) model which should provide basis for future (5) reliable and accurate HE damage prediction of different industrial components.
C3  - Materials Science and Engineering (MSE) 2018 Conference, Environmentally Assisted Cracking of High-Strength Alloys Symposium
T1  - Hydrogen Embrittlement and Prevention of Industrial Components
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5519
ER  - 
@conference{
author = "Đukić, Miloš and Bakić, Gordana and Rajičić, Bratislav and Šijački Žeravčić, Vera and Sedmak, Aleksandar",
year = "2018",
abstract = "Hydrogen damage includes a wide range of environmental types of failure, hydrogen assisted mechanical degradation processes, and hydrogen-material interactions, including hydrogen embrittlement (HE) and material microstructural changes, caused by the presence of hydrogen in metals. Hydrogen embrittlement of iron, steel, and their alloys is extremely interesting phenomena as these materials are widely used in many industrial applications. The coexistence of different HE mechanisms and their simultaneous effects in metallic materials, including steels, is still not well documented, while recognition of the dominant mechanism, one or more, is an extremely challenging and a crucial problem [1]. The implementation of methods for evaluation, control, and prevention of hydrogen assisted mechanical degradation processes and HE in metals, as well as, development of  the future practically-applicable industrial predictive model requires that the variables relevant to the application be incorporated into the basic concept that define all necessary successive steps (5-step approach) for the industrial application [2]. The global 5-step approach in prevention of hydrogen assisted mechanical degradation processes and hydrogen embrittlement in metals for the practical industrial application consists of following steps: (1) phenomenology analysis of hydrogen related degradation (multiscale modeling and simulation of HE phenomena); (2) hydrogen sources and entry into metal/component; (3) structural integrity (SiM) model and (4) predictive maintenance (PdM) model which should provide basis for future (5) reliable and accurate HE damage prediction of different industrial components.",
journal = "Materials Science and Engineering (MSE) 2018 Conference, Environmentally Assisted Cracking of High-Strength Alloys Symposium",
title = "Hydrogen Embrittlement and Prevention of Industrial Components",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5519"
}
Đukić, M., Bakić, G., Rajičić, B., Šijački Žeravčić, V.,& Sedmak, A.. (2018). Hydrogen Embrittlement and Prevention of Industrial Components. in Materials Science and Engineering (MSE) 2018 Conference, Environmentally Assisted Cracking of High-Strength Alloys Symposium.
https://hdl.handle.net/21.15107/rcub_machinery_5519
Đukić M, Bakić G, Rajičić B, Šijački Žeravčić V, Sedmak A. Hydrogen Embrittlement and Prevention of Industrial Components. in Materials Science and Engineering (MSE) 2018 Conference, Environmentally Assisted Cracking of High-Strength Alloys Symposium. 2018;.
https://hdl.handle.net/21.15107/rcub_machinery_5519 .
Đukić, Miloš, Bakić, Gordana, Rajičić, Bratislav, Šijački Žeravčić, Vera, Sedmak, Aleksandar, "Hydrogen Embrittlement and Prevention of Industrial Components" in Materials Science and Engineering (MSE) 2018 Conference, Environmentally Assisted Cracking of High-Strength Alloys Symposium (2018),
https://hdl.handle.net/21.15107/rcub_machinery_5519 .

Model of Simultaneous Action in a Cooperative Manner of Hydrogen Embrittlement Mechanisms (HELP + HEDE) in Low Carbon Steel and Their Effects on Mechanical Properties

Đukić, Miloš; Bakić, Gordana; Rajičić, Bratislav; Šijački Žeravčić, Vera; Sedmak, Aleksandar; Mitrović, Radivoje; Mišković, Žarko

(Ghent, Belgium, 2018)

TY  - CONF
AU  - Đukić, Miloš
AU  - Bakić, Gordana
AU  - Rajičić, Bratislav
AU  - Šijački Žeravčić, Vera
AU  - Sedmak, Aleksandar
AU  - Mitrović, Radivoje
AU  - Mišković, Žarko
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5515
AB  - The simultaneous activity and synergistic interplay of the hydrogen-enhanced localized plasticity (HELP) and hydrogenenhanced
decohesion (HEDE) mechanisms of hydrogen embrittlement (HE) was fully confirmed for the first time in low carbon
grade 20 - St.20 (or 20G, equivalent to UNS G10200, AISI 1020) steel specimens (boiler tubes) in situ enriched and embrittled by
hydrogen during boiler exploitation in a thermal power plant (TPP), and not only through lab experiment, simulation or modelling.
The proposed HELP+HEDE model of HE in low carbon steels is based on the correlation of mechanical properties to SEM
microscopy fractography analysis of fracture surfaces in the presence of simultaneous action in a cooperative manner of the
HELP and HEDE micro-mechanisms of HE depending on the local concentration of hydrogen in the investigated steel. Also, the
effect of hydrogen on the material mechanical properties and ductile to brittle fracture transition resulting from the concurrent
and synergistic (HELP+HEDE) or competing action of HELP and HEDE mechanisms of HE is discussed. The effects and
correlations between microstructure, fractographic observations (light microscopy and scanning electron microscope - SEM)
and macro-mechanical testing data (tensile testing, impact strength on instrumented Charpy machine and hardness) are also
considered. This paper also gives an overview of the application of a model for structural integrity analysis of boiler evaporator
tubes in TPP made of low carbon steel exposed during operation to a local corrosion process and multiple hydrogen assisted
degradation processes. The proposed model enables enhanced predictive maintenance of industrial component systems.
PB  - Ghent, Belgium
C3  - Third International Conference on Metals & Hydrogen, Steely Hydrogen 2018
T1  - Model of Simultaneous Action in a Cooperative Manner of Hydrogen Embrittlement Mechanisms (HELP + HEDE) in Low Carbon Steel and Their Effects on Mechanical Properties
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5515
ER  - 
@conference{
author = "Đukić, Miloš and Bakić, Gordana and Rajičić, Bratislav and Šijački Žeravčić, Vera and Sedmak, Aleksandar and Mitrović, Radivoje and Mišković, Žarko",
year = "2018",
abstract = "The simultaneous activity and synergistic interplay of the hydrogen-enhanced localized plasticity (HELP) and hydrogenenhanced
decohesion (HEDE) mechanisms of hydrogen embrittlement (HE) was fully confirmed for the first time in low carbon
grade 20 - St.20 (or 20G, equivalent to UNS G10200, AISI 1020) steel specimens (boiler tubes) in situ enriched and embrittled by
hydrogen during boiler exploitation in a thermal power plant (TPP), and not only through lab experiment, simulation or modelling.
The proposed HELP+HEDE model of HE in low carbon steels is based on the correlation of mechanical properties to SEM
microscopy fractography analysis of fracture surfaces in the presence of simultaneous action in a cooperative manner of the
HELP and HEDE micro-mechanisms of HE depending on the local concentration of hydrogen in the investigated steel. Also, the
effect of hydrogen on the material mechanical properties and ductile to brittle fracture transition resulting from the concurrent
and synergistic (HELP+HEDE) or competing action of HELP and HEDE mechanisms of HE is discussed. The effects and
correlations between microstructure, fractographic observations (light microscopy and scanning electron microscope - SEM)
and macro-mechanical testing data (tensile testing, impact strength on instrumented Charpy machine and hardness) are also
considered. This paper also gives an overview of the application of a model for structural integrity analysis of boiler evaporator
tubes in TPP made of low carbon steel exposed during operation to a local corrosion process and multiple hydrogen assisted
degradation processes. The proposed model enables enhanced predictive maintenance of industrial component systems.",
publisher = "Ghent, Belgium",
journal = "Third International Conference on Metals & Hydrogen, Steely Hydrogen 2018",
title = "Model of Simultaneous Action in a Cooperative Manner of Hydrogen Embrittlement Mechanisms (HELP + HEDE) in Low Carbon Steel and Their Effects on Mechanical Properties",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5515"
}
Đukić, M., Bakić, G., Rajičić, B., Šijački Žeravčić, V., Sedmak, A., Mitrović, R.,& Mišković, Ž.. (2018). Model of Simultaneous Action in a Cooperative Manner of Hydrogen Embrittlement Mechanisms (HELP + HEDE) in Low Carbon Steel and Their Effects on Mechanical Properties. in Third International Conference on Metals & Hydrogen, Steely Hydrogen 2018
Ghent, Belgium..
https://hdl.handle.net/21.15107/rcub_machinery_5515
Đukić M, Bakić G, Rajičić B, Šijački Žeravčić V, Sedmak A, Mitrović R, Mišković Ž. Model of Simultaneous Action in a Cooperative Manner of Hydrogen Embrittlement Mechanisms (HELP + HEDE) in Low Carbon Steel and Their Effects on Mechanical Properties. in Third International Conference on Metals & Hydrogen, Steely Hydrogen 2018. 2018;.
https://hdl.handle.net/21.15107/rcub_machinery_5515 .
Đukić, Miloš, Bakić, Gordana, Rajičić, Bratislav, Šijački Žeravčić, Vera, Sedmak, Aleksandar, Mitrović, Radivoje, Mišković, Žarko, "Model of Simultaneous Action in a Cooperative Manner of Hydrogen Embrittlement Mechanisms (HELP + HEDE) in Low Carbon Steel and Their Effects on Mechanical Properties" in Third International Conference on Metals & Hydrogen, Steely Hydrogen 2018 (2018),
https://hdl.handle.net/21.15107/rcub_machinery_5515 .

Characterization of different MMC coatings deposited by PTA and FS processes

Maksimović, Vesna; Maslarević, Aleksandar; Bakić, Gordana; Đukić, Miloš; Rajičić, Bratislav; Pavkov, Vladimir

(Belgrade : Materials research society of Serbia, 2018)

TY  - CONF
AU  - Maksimović, Vesna
AU  - Maslarević, Aleksandar
AU  - Bakić, Gordana
AU  - Đukić, Miloš
AU  - Rajičić, Bratislav
AU  - Pavkov, Vladimir
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4430
PB  - Belgrade : Materials research society of Serbia
C3  - Programme and Book of Abstracts 20th Annual Conference YUCOMAT 2018, Herceg Novi, Montenegro, September 3-7, 2018
T1  - Characterization of different MMC coatings deposited by PTA and FS processes
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4430
ER  - 
@conference{
author = "Maksimović, Vesna and Maslarević, Aleksandar and Bakić, Gordana and Đukić, Miloš and Rajičić, Bratislav and Pavkov, Vladimir",
year = "2018",
publisher = "Belgrade : Materials research society of Serbia",
journal = "Programme and Book of Abstracts 20th Annual Conference YUCOMAT 2018, Herceg Novi, Montenegro, September 3-7, 2018",
title = "Characterization of different MMC coatings deposited by PTA and FS processes",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4430"
}
Maksimović, V., Maslarević, A., Bakić, G., Đukić, M., Rajičić, B.,& Pavkov, V.. (2018). Characterization of different MMC coatings deposited by PTA and FS processes. in Programme and Book of Abstracts 20th Annual Conference YUCOMAT 2018, Herceg Novi, Montenegro, September 3-7, 2018
Belgrade : Materials research society of Serbia..
https://hdl.handle.net/21.15107/rcub_machinery_4430
Maksimović V, Maslarević A, Bakić G, Đukić M, Rajičić B, Pavkov V. Characterization of different MMC coatings deposited by PTA and FS processes. in Programme and Book of Abstracts 20th Annual Conference YUCOMAT 2018, Herceg Novi, Montenegro, September 3-7, 2018. 2018;.
https://hdl.handle.net/21.15107/rcub_machinery_4430 .
Maksimović, Vesna, Maslarević, Aleksandar, Bakić, Gordana, Đukić, Miloš, Rajičić, Bratislav, Pavkov, Vladimir, "Characterization of different MMC coatings deposited by PTA and FS processes" in Programme and Book of Abstracts 20th Annual Conference YUCOMAT 2018, Herceg Novi, Montenegro, September 3-7, 2018 (2018),
https://hdl.handle.net/21.15107/rcub_machinery_4430 .

Plasma transferred arc hardfacing with 316L

Maslarević, Aleksandar; Bakić, Gordana; Šijački Žeravčić, Vera; Rajičić, Bratislav; Lukić, Uroš

(National R & D Institute For Welding And Material Testing - ISIM Timisoara, Romania, 2015)

TY  - CONF
AU  - Maslarević, Aleksandar
AU  - Bakić, Gordana
AU  - Šijački Žeravčić, Vera
AU  - Rajičić, Bratislav
AU  - Lukić, Uroš
PY  - 2015
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4438
AB  - The parts of machines and structures are often exposed to
the action of aggressive corrosive environments, which in a
short period of time can provoke the loss of their integrity. It
is well known that for extending service life, the protection
of exposed structure zone by coating is frequently used. One
of the possible protection methods is hardfacing the stainless
steel of appropriate chemical composition and suitable
thickness on the surface of the parts that are made of
structural steel whose corrosion resistance is extremely low.
Due to a number of advantages, the plasma transferred arc
(PTA) surfacing process has found significant use in the
field of surface protection as well as surfacing buffer layers
for very different materials. The goal of this paper is to
determine the dependence of plasma arc welding process
parameters and characteristics of welded layer made of
stainless steel 316L, regarding selection of optimum process
parameters. Investigations were carried out on structural
steel S235JR which surface is hardfaced by powdered 316L
stainless steel with varying amounts of heat input. In this
investigation, heat input depended only on welding current
that was changed, while the other parameters of the process
were constant.
PB  - National R & D Institute For Welding And Material Testing - ISIM Timisoara, Romania
C3  - The 3rd South - East European Welding Congress  "Welding And Joining Technologies For A Sustainable Development And Environment", June 3-5, 2015, Timisoara, Romania
T1  - Plasma transferred arc hardfacing with 316L
DO  - 10.13140/RG.2.1.3808.1520
ER  - 
@conference{
author = "Maslarević, Aleksandar and Bakić, Gordana and Šijački Žeravčić, Vera and Rajičić, Bratislav and Lukić, Uroš",
year = "2015",
abstract = "The parts of machines and structures are often exposed to
the action of aggressive corrosive environments, which in a
short period of time can provoke the loss of their integrity. It
is well known that for extending service life, the protection
of exposed structure zone by coating is frequently used. One
of the possible protection methods is hardfacing the stainless
steel of appropriate chemical composition and suitable
thickness on the surface of the parts that are made of
structural steel whose corrosion resistance is extremely low.
Due to a number of advantages, the plasma transferred arc
(PTA) surfacing process has found significant use in the
field of surface protection as well as surfacing buffer layers
for very different materials. The goal of this paper is to
determine the dependence of plasma arc welding process
parameters and characteristics of welded layer made of
stainless steel 316L, regarding selection of optimum process
parameters. Investigations were carried out on structural
steel S235JR which surface is hardfaced by powdered 316L
stainless steel with varying amounts of heat input. In this
investigation, heat input depended only on welding current
that was changed, while the other parameters of the process
were constant.",
publisher = "National R & D Institute For Welding And Material Testing - ISIM Timisoara, Romania",
journal = "The 3rd South - East European Welding Congress  "Welding And Joining Technologies For A Sustainable Development And Environment", June 3-5, 2015, Timisoara, Romania",
title = "Plasma transferred arc hardfacing with 316L",
doi = "10.13140/RG.2.1.3808.1520"
}
Maslarević, A., Bakić, G., Šijački Žeravčić, V., Rajičić, B.,& Lukić, U.. (2015). Plasma transferred arc hardfacing with 316L. in The 3rd South - East European Welding Congress  "Welding And Joining Technologies For A Sustainable Development And Environment", June 3-5, 2015, Timisoara, Romania
National R & D Institute For Welding And Material Testing - ISIM Timisoara, Romania..
https://doi.org/10.13140/RG.2.1.3808.1520
Maslarević A, Bakić G, Šijački Žeravčić V, Rajičić B, Lukić U. Plasma transferred arc hardfacing with 316L. in The 3rd South - East European Welding Congress  "Welding And Joining Technologies For A Sustainable Development And Environment", June 3-5, 2015, Timisoara, Romania. 2015;.
doi:10.13140/RG.2.1.3808.1520 .
Maslarević, Aleksandar, Bakić, Gordana, Šijački Žeravčić, Vera, Rajičić, Bratislav, Lukić, Uroš, "Plasma transferred arc hardfacing with 316L" in The 3rd South - East European Welding Congress  "Welding And Joining Technologies For A Sustainable Development And Environment", June 3-5, 2015, Timisoara, Romania (2015),
https://doi.org/10.13140/RG.2.1.3808.1520 . .

3D profiling of 12Cr heat resistante steel charpy V noch fracture surface obtained at different temperatures

Bakić, Gordana; Đukić, Miloš; Mitrović, Radivoje; Maslarević, Aleksandar; Mišković, Žarko; Rajičić, Bratislav; Šijački Žeravčić, Vera

(Faculty of Mechanical Engineering, University of Belgrade, 2015)

TY  - CONF
AU  - Bakić, Gordana
AU  - Đukić, Miloš
AU  - Mitrović, Radivoje
AU  - Maslarević, Aleksandar
AU  - Mišković, Žarko
AU  - Rajičić, Bratislav
AU  - Šijački Žeravčić, Vera
PY  - 2015
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4586
AB  - Characterization of metal degradation after prolonged
service is necessary for evaluating component
exhaustion and its remaining service capability.
Martensitic steel X20CrMoV 12.1 has
been extensively used as a material for tubing
systems and pipelines in thermal power plants.
This paper compares data provided by two imaging
techniques. Following tests were performed:
impact testing at different temperatures and characterization
of fracture surfaces of Charpy specimens
by scanning electron microscope and 3D
digital optical microscope. In this study three new
geometrical characteristics were established, as a
measure of the ductility change of material.
PB  - Faculty of Mechanical Engineering, University of Belgrade
C3  - Proceedings of TEAM 2015 / 7th International Scientific and Expert Conference of the International TEAM Society, 15/16th October 2015, Belgrade, Serbia
T1  - 3D profiling of 12Cr heat resistante steel charpy V noch fracture surface obtained at different temperatures
DO  - 10.13140/RG.2.1.2527.8481
ER  - 
@conference{
author = "Bakić, Gordana and Đukić, Miloš and Mitrović, Radivoje and Maslarević, Aleksandar and Mišković, Žarko and Rajičić, Bratislav and Šijački Žeravčić, Vera",
year = "2015",
abstract = "Characterization of metal degradation after prolonged
service is necessary for evaluating component
exhaustion and its remaining service capability.
Martensitic steel X20CrMoV 12.1 has
been extensively used as a material for tubing
systems and pipelines in thermal power plants.
This paper compares data provided by two imaging
techniques. Following tests were performed:
impact testing at different temperatures and characterization
of fracture surfaces of Charpy specimens
by scanning electron microscope and 3D
digital optical microscope. In this study three new
geometrical characteristics were established, as a
measure of the ductility change of material.",
publisher = "Faculty of Mechanical Engineering, University of Belgrade",
journal = "Proceedings of TEAM 2015 / 7th International Scientific and Expert Conference of the International TEAM Society, 15/16th October 2015, Belgrade, Serbia",
title = "3D profiling of 12Cr heat resistante steel charpy V noch fracture surface obtained at different temperatures",
doi = "10.13140/RG.2.1.2527.8481"
}
Bakić, G., Đukić, M., Mitrović, R., Maslarević, A., Mišković, Ž., Rajičić, B.,& Šijački Žeravčić, V.. (2015). 3D profiling of 12Cr heat resistante steel charpy V noch fracture surface obtained at different temperatures. in Proceedings of TEAM 2015 / 7th International Scientific and Expert Conference of the International TEAM Society, 15/16th October 2015, Belgrade, Serbia
Faculty of Mechanical Engineering, University of Belgrade..
https://doi.org/10.13140/RG.2.1.2527.8481
Bakić G, Đukić M, Mitrović R, Maslarević A, Mišković Ž, Rajičić B, Šijački Žeravčić V. 3D profiling of 12Cr heat resistante steel charpy V noch fracture surface obtained at different temperatures. in Proceedings of TEAM 2015 / 7th International Scientific and Expert Conference of the International TEAM Society, 15/16th October 2015, Belgrade, Serbia. 2015;.
doi:10.13140/RG.2.1.2527.8481 .
Bakić, Gordana, Đukić, Miloš, Mitrović, Radivoje, Maslarević, Aleksandar, Mišković, Žarko, Rajičić, Bratislav, Šijački Žeravčić, Vera, "3D profiling of 12Cr heat resistante steel charpy V noch fracture surface obtained at different temperatures" in Proceedings of TEAM 2015 / 7th International Scientific and Expert Conference of the International TEAM Society, 15/16th October 2015, Belgrade, Serbia (2015),
https://doi.org/10.13140/RG.2.1.2527.8481 . .
3

The possibility of fireside corrosion occurrence in domestic boilers furnaces with low NOx combustion technology

Bakić, Gordana; Šijački Žeravčić, Vera; Đukić, Miloš; Tucaković, Dragan; Stojiljković, Dragoslava; Rajičić, Bratislav; Stupar, Goran

(2014)

TY  - CONF
AU  - Bakić, Gordana
AU  - Šijački Žeravčić, Vera
AU  - Đukić, Miloš
AU  - Tucaković, Dragan
AU  - Stojiljković, Dragoslava
AU  - Rajičić, Bratislav
AU  - Stupar, Goran
PY  - 2014
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5322
AB  - The emission of nitrogen oxides (NOx) during combustion of fossil fuels is considered as one of the major sources of environmental hazards. As a result, the limitations of concentration of nitrogen oxides in fuel gases are regulated. The implementation of low NOx burners in pulverized coal-fired boilers has led to a rise in the fireside corrosion rate of the waterwall boiler tubes in some power plants. Under normal combustion conditions, an oxidizing atmosphere helps formation of a protective oxide scale on the surface of the boiler tubes, thus impeding gaseous corrosion. However, the use of low NOx technology changes the combustion environment, resulting in the presence of reduction gases characterized by large amounts of CO and H2S. In areas of reducing atmosphere, a porous, non-protective scale is produced on the waterwalls that could leads to significant metal loss per year due to corrosion. In order to better understand the mechanisms and kinetics of the fireside corrosion, it was determined that, in addition to the type of atmosphere formed during fuel combustion, coal composition has an important role in the occurrence of fireside corrosion. The aim of this paper is to analyze the possibility of occurrence of fireside corrosion, i.e., determine the corrosion potential of domestic coals and identify possible problems that could occur during combustion using low NOx technologies.
C3  - Proceeding of International Conference "Power Plants 2014"
T1  - The possibility of fireside corrosion occurrence in domestic boilers furnaces with low NOx combustion technology
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5322
ER  - 
@conference{
author = "Bakić, Gordana and Šijački Žeravčić, Vera and Đukić, Miloš and Tucaković, Dragan and Stojiljković, Dragoslava and Rajičić, Bratislav and Stupar, Goran",
year = "2014",
abstract = "The emission of nitrogen oxides (NOx) during combustion of fossil fuels is considered as one of the major sources of environmental hazards. As a result, the limitations of concentration of nitrogen oxides in fuel gases are regulated. The implementation of low NOx burners in pulverized coal-fired boilers has led to a rise in the fireside corrosion rate of the waterwall boiler tubes in some power plants. Under normal combustion conditions, an oxidizing atmosphere helps formation of a protective oxide scale on the surface of the boiler tubes, thus impeding gaseous corrosion. However, the use of low NOx technology changes the combustion environment, resulting in the presence of reduction gases characterized by large amounts of CO and H2S. In areas of reducing atmosphere, a porous, non-protective scale is produced on the waterwalls that could leads to significant metal loss per year due to corrosion. In order to better understand the mechanisms and kinetics of the fireside corrosion, it was determined that, in addition to the type of atmosphere formed during fuel combustion, coal composition has an important role in the occurrence of fireside corrosion. The aim of this paper is to analyze the possibility of occurrence of fireside corrosion, i.e., determine the corrosion potential of domestic coals and identify possible problems that could occur during combustion using low NOx technologies.",
journal = "Proceeding of International Conference "Power Plants 2014"",
title = "The possibility of fireside corrosion occurrence in domestic boilers furnaces with low NOx combustion technology",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5322"
}
Bakić, G., Šijački Žeravčić, V., Đukić, M., Tucaković, D., Stojiljković, D., Rajičić, B.,& Stupar, G.. (2014). The possibility of fireside corrosion occurrence in domestic boilers furnaces with low NOx combustion technology. in Proceeding of International Conference "Power Plants 2014".
https://hdl.handle.net/21.15107/rcub_machinery_5322
Bakić G, Šijački Žeravčić V, Đukić M, Tucaković D, Stojiljković D, Rajičić B, Stupar G. The possibility of fireside corrosion occurrence in domestic boilers furnaces with low NOx combustion technology. in Proceeding of International Conference "Power Plants 2014". 2014;.
https://hdl.handle.net/21.15107/rcub_machinery_5322 .
Bakić, Gordana, Šijački Žeravčić, Vera, Đukić, Miloš, Tucaković, Dragan, Stojiljković, Dragoslava, Rajičić, Bratislav, Stupar, Goran, "The possibility of fireside corrosion occurrence in domestic boilers furnaces with low NOx combustion technology" in Proceeding of International Conference "Power Plants 2014" (2014),
https://hdl.handle.net/21.15107/rcub_machinery_5322 .

Material characterization of 1Cr0.25Mo0.25V power plant steel after prolonged service

Bakić, Gordana; Šijački Žeravčić, Vera; Đukić, Miloš; Maksimović, Vesna; Rajičić, Bratislav

(Association of Metallurgical Engineers of Serbia - AMES (2013), Serbian Foundrymen Society and Metallurgical Academic Network of SEE Countries, Srbija, 2013)

TY  - CONF
AU  - Bakić, Gordana
AU  - Šijački Žeravčić, Vera
AU  - Đukić, Miloš
AU  - Maksimović, Vesna
AU  - Rajičić, Bratislav
PY  - 2013
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5021
AB  - Changes of mechanical properties and microstructure of specimens, which
were taken from pipelines, made of heat resistant steel 1Cr0.25Mo0.25V after
approximatelly 200000 hours of service at temperature of 540°C and stress 70MPa are considered in this paper. Also, the initial specimens, made of same steel that had not been at service were investigated. Results obtained by different experimental technique show that microstructural degradation had been dominant process during prolonged service in creep conditions, which lead to the changes of mechanical properties. Microstructural degradation and damages, like creep cavities and oxidation on internal surface of pipe, were observed. The changes of mechanical properties and significant decrease of hardness and micro hardness during service are explained by different processes that take place during microstructural degradation.
PB  - Association of Metallurgical Engineers of Serbia - AMES (2013), Serbian Foundrymen Society and Metallurgical Academic Network of SEE Countries, Srbija
C3  - First Metallurgical & Materials Engineering Congress of South-East Europe (MME SEE 2013)
T1  - Material characterization of 1Cr0.25Mo0.25V power plant steel after prolonged service
DO  - 10.13140/RG.2.1.2626.1523
ER  - 
@conference{
author = "Bakić, Gordana and Šijački Žeravčić, Vera and Đukić, Miloš and Maksimović, Vesna and Rajičić, Bratislav",
year = "2013",
abstract = "Changes of mechanical properties and microstructure of specimens, which
were taken from pipelines, made of heat resistant steel 1Cr0.25Mo0.25V after
approximatelly 200000 hours of service at temperature of 540°C and stress 70MPa are considered in this paper. Also, the initial specimens, made of same steel that had not been at service were investigated. Results obtained by different experimental technique show that microstructural degradation had been dominant process during prolonged service in creep conditions, which lead to the changes of mechanical properties. Microstructural degradation and damages, like creep cavities and oxidation on internal surface of pipe, were observed. The changes of mechanical properties and significant decrease of hardness and micro hardness during service are explained by different processes that take place during microstructural degradation.",
publisher = "Association of Metallurgical Engineers of Serbia - AMES (2013), Serbian Foundrymen Society and Metallurgical Academic Network of SEE Countries, Srbija",
journal = "First Metallurgical & Materials Engineering Congress of South-East Europe (MME SEE 2013)",
title = "Material characterization of 1Cr0.25Mo0.25V power plant steel after prolonged service",
doi = "10.13140/RG.2.1.2626.1523"
}
Bakić, G., Šijački Žeravčić, V., Đukić, M., Maksimović, V.,& Rajičić, B.. (2013). Material characterization of 1Cr0.25Mo0.25V power plant steel after prolonged service. in First Metallurgical & Materials Engineering Congress of South-East Europe (MME SEE 2013)
Association of Metallurgical Engineers of Serbia - AMES (2013), Serbian Foundrymen Society and Metallurgical Academic Network of SEE Countries, Srbija..
https://doi.org/10.13140/RG.2.1.2626.1523
Bakić G, Šijački Žeravčić V, Đukić M, Maksimović V, Rajičić B. Material characterization of 1Cr0.25Mo0.25V power plant steel after prolonged service. in First Metallurgical & Materials Engineering Congress of South-East Europe (MME SEE 2013). 2013;.
doi:10.13140/RG.2.1.2626.1523 .
Bakić, Gordana, Šijački Žeravčić, Vera, Đukić, Miloš, Maksimović, Vesna, Rajičić, Bratislav, "Material characterization of 1Cr0.25Mo0.25V power plant steel after prolonged service" in First Metallurgical & Materials Engineering Congress of South-East Europe (MME SEE 2013) (2013),
https://doi.org/10.13140/RG.2.1.2626.1523 . .

Korozija uređaja u termoenergetskim postrojenjima

Šijački Žeravčić, Vera; Bakić, Gordana; Đukić, Miloš; Rajičić, Bratislav; Anđelić, Biljana

(ITNMS i Inženjersko društvo za koroziju (IDK), Beograd, 2012)

TY  - CHAP
AU  - Šijački Žeravčić, Vera
AU  - Bakić, Gordana
AU  - Đukić, Miloš
AU  - Rajičić, Bratislav
AU  - Anđelić, Biljana
PY  - 2012
UR  - http://idk.org.rs/monografija-korozija-i-zastita-materijala/
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5334
PB  - ITNMS i Inženjersko društvo za koroziju (IDK), Beograd
T2  - Korozija i zaštita materijala
T1  - Korozija uređaja u termoenergetskim postrojenjima
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5334
ER  - 
@inbook{
author = "Šijački Žeravčić, Vera and Bakić, Gordana and Đukić, Miloš and Rajičić, Bratislav and Anđelić, Biljana",
year = "2012",
publisher = "ITNMS i Inženjersko društvo za koroziju (IDK), Beograd",
journal = "Korozija i zaštita materijala",
booktitle = "Korozija uređaja u termoenergetskim postrojenjima",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5334"
}
Šijački Žeravčić, V., Bakić, G., Đukić, M., Rajičić, B.,& Anđelić, B.. (2012). Korozija uređaja u termoenergetskim postrojenjima. in Korozija i zaštita materijala
ITNMS i Inženjersko društvo za koroziju (IDK), Beograd..
https://hdl.handle.net/21.15107/rcub_machinery_5334
Šijački Žeravčić V, Bakić G, Đukić M, Rajičić B, Anđelić B. Korozija uređaja u termoenergetskim postrojenjima. in Korozija i zaštita materijala. 2012;.
https://hdl.handle.net/21.15107/rcub_machinery_5334 .
Šijački Žeravčić, Vera, Bakić, Gordana, Đukić, Miloš, Rajičić, Bratislav, Anđelić, Biljana, "Korozija uređaja u termoenergetskim postrojenjima" in Korozija i zaštita materijala (2012),
https://hdl.handle.net/21.15107/rcub_machinery_5334 .

Overview of advanced methods of boiler tubes erosion protection

Rajičić, Bratislav; Bakić, Gordana; Đukić, Miloš; Šijački Žeravčić, Vera; Braunović, Milenko; Anđelić, Biljana

(Society of Thermal Engineers of Serbia (Društvo Termičara Srbije), 2012)

TY  - CONF
AU  - Rajičić, Bratislav
AU  - Bakić, Gordana
AU  - Đukić, Miloš
AU  - Šijački Žeravčić, Vera
AU  - Braunović, Milenko
AU  - Anđelić, Biljana
PY  - 2012
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5018
AB  - Based on the analysis of the exploitation behavior of domestic thermal power plants it was concluded that the failures on the boiler tubing systems is due to erosion by flying ashes and that it is the main cause for the boiler tube failure especially in the evaporator and economiser surfaces. Current boiler tube erosion protection methods can be classified into three basic categories: a) welding overlay; b) thermal spraying (metallization) and c) mechanical protection. Welding overlay and thermal spraying procedures are successfully implemented on the clean boiler tubings prior to installation, although the same procedure with qualitative preparation (cleaning) can effectively be used even with the boiler tubings that were in the operation for a period of time. On modern thermal power plants in the world, thermal spraying method is widely used for the protection against erosion, abrasion and corrosion. Despite being inexpensive, mechanical protection methods are generally not used in the modern systems because of limited lifetime, difficulties during dismantling and reduced heat transfer on the protected tubings. In order to reduce the number of outages (direct material saving) and thus improve the operational reliability, availability and competitiveness, the use of modern erosion protection methods is of high priority.
PB  - Society of Thermal Engineers of Serbia (Društvo Termičara Srbije)
C3  - Power Plants 2012 – Međunarodna konferencija o elektranama
T1  - Overview of advanced methods of boiler tubes erosion protection
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5018
ER  - 
@conference{
author = "Rajičić, Bratislav and Bakić, Gordana and Đukić, Miloš and Šijački Žeravčić, Vera and Braunović, Milenko and Anđelić, Biljana",
year = "2012",
abstract = "Based on the analysis of the exploitation behavior of domestic thermal power plants it was concluded that the failures on the boiler tubing systems is due to erosion by flying ashes and that it is the main cause for the boiler tube failure especially in the evaporator and economiser surfaces. Current boiler tube erosion protection methods can be classified into three basic categories: a) welding overlay; b) thermal spraying (metallization) and c) mechanical protection. Welding overlay and thermal spraying procedures are successfully implemented on the clean boiler tubings prior to installation, although the same procedure with qualitative preparation (cleaning) can effectively be used even with the boiler tubings that were in the operation for a period of time. On modern thermal power plants in the world, thermal spraying method is widely used for the protection against erosion, abrasion and corrosion. Despite being inexpensive, mechanical protection methods are generally not used in the modern systems because of limited lifetime, difficulties during dismantling and reduced heat transfer on the protected tubings. In order to reduce the number of outages (direct material saving) and thus improve the operational reliability, availability and competitiveness, the use of modern erosion protection methods is of high priority.",
publisher = "Society of Thermal Engineers of Serbia (Društvo Termičara Srbije)",
journal = "Power Plants 2012 – Međunarodna konferencija o elektranama",
title = "Overview of advanced methods of boiler tubes erosion protection",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5018"
}
Rajičić, B., Bakić, G., Đukić, M., Šijački Žeravčić, V., Braunović, M.,& Anđelić, B.. (2012). Overview of advanced methods of boiler tubes erosion protection. in Power Plants 2012 – Međunarodna konferencija o elektranama
Society of Thermal Engineers of Serbia (Društvo Termičara Srbije)..
https://hdl.handle.net/21.15107/rcub_machinery_5018
Rajičić B, Bakić G, Đukić M, Šijački Žeravčić V, Braunović M, Anđelić B. Overview of advanced methods of boiler tubes erosion protection. in Power Plants 2012 – Međunarodna konferencija o elektranama. 2012;.
https://hdl.handle.net/21.15107/rcub_machinery_5018 .
Rajičić, Bratislav, Bakić, Gordana, Đukić, Miloš, Šijački Žeravčić, Vera, Braunović, Milenko, Anđelić, Biljana, "Overview of advanced methods of boiler tubes erosion protection" in Power Plants 2012 – Međunarodna konferencija o elektranama (2012),
https://hdl.handle.net/21.15107/rcub_machinery_5018 .

Filler Material Choice For Stop Valve Repair Welding

Šijački Žeravčić, Vera; Bakić, Gordana; Đukić, Miloš; Anđelić, Biljana; Rajičić, Bratislav

(The National R&D Institute for Welding and Material Testing - ISIM Timişoara, 2006)

TY  - CONF
AU  - Šijački Žeravčić, Vera
AU  - Bakić, Gordana
AU  - Đukić, Miloš
AU  - Anđelić, Biljana
AU  - Rajičić, Bratislav
PY  - 2006
UR  - https://www.researchgate.net/publication/258519270_Filler_Material_Choice_for_Stop_Valve_Repair_Welding#fullTextFileContent
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5545
AB  - Filler material choice for repair welding of stop valve spindle of thermal power plant by-pass pipeline was presented in this paper. Repair welding of the stop valve spindle was necessary because of plant operating problems due to very frequent localized damage appearance in the form of erosive wear on it. For this purpose it was necessary to choice appropriate filler material with high wear resistance characteristic. Experimental investigation and testing (hardness measurement, chemical composition analysis and microstructural investigation) of prepared specimens after welding simulation with different kind of filler material was performed. On the basis of obtained results it was recommended procedure for application of the filler material with generally preferable characteristic.
PB  - The National R&D Institute for Welding and Material Testing - ISIM Timişoara
C3  - Conference: IIW International Congress “Welding and Joining Technologies for a Sustainable Development and Environment”, The 1st South-East European Welding Congress
T1  - Filler Material Choice For Stop Valve Repair Welding
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5545
ER  - 
@conference{
author = "Šijački Žeravčić, Vera and Bakić, Gordana and Đukić, Miloš and Anđelić, Biljana and Rajičić, Bratislav",
year = "2006",
abstract = "Filler material choice for repair welding of stop valve spindle of thermal power plant by-pass pipeline was presented in this paper. Repair welding of the stop valve spindle was necessary because of plant operating problems due to very frequent localized damage appearance in the form of erosive wear on it. For this purpose it was necessary to choice appropriate filler material with high wear resistance characteristic. Experimental investigation and testing (hardness measurement, chemical composition analysis and microstructural investigation) of prepared specimens after welding simulation with different kind of filler material was performed. On the basis of obtained results it was recommended procedure for application of the filler material with generally preferable characteristic.",
publisher = "The National R&D Institute for Welding and Material Testing - ISIM Timişoara",
journal = "Conference: IIW International Congress “Welding and Joining Technologies for a Sustainable Development and Environment”, The 1st South-East European Welding Congress",
title = "Filler Material Choice For Stop Valve Repair Welding",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5545"
}
Šijački Žeravčić, V., Bakić, G., Đukić, M., Anđelić, B.,& Rajičić, B.. (2006). Filler Material Choice For Stop Valve Repair Welding. in Conference: IIW International Congress “Welding and Joining Technologies for a Sustainable Development and Environment”, The 1st South-East European Welding Congress
The National R&D Institute for Welding and Material Testing - ISIM Timişoara..
https://hdl.handle.net/21.15107/rcub_machinery_5545
Šijački Žeravčić V, Bakić G, Đukić M, Anđelić B, Rajičić B. Filler Material Choice For Stop Valve Repair Welding. in Conference: IIW International Congress “Welding and Joining Technologies for a Sustainable Development and Environment”, The 1st South-East European Welding Congress. 2006;.
https://hdl.handle.net/21.15107/rcub_machinery_5545 .
Šijački Žeravčić, Vera, Bakić, Gordana, Đukić, Miloš, Anđelić, Biljana, Rajičić, Bratislav, "Filler Material Choice For Stop Valve Repair Welding" in Conference: IIW International Congress “Welding and Joining Technologies for a Sustainable Development and Environment”, The 1st South-East European Welding Congress (2006),
https://hdl.handle.net/21.15107/rcub_machinery_5545 .