TY  - JOUR
AU  - Vencl, Aleksandar
AU  - Bobić, Ilija
AU  - Stanković, Miloš
AU  - Hvizdos, Pavol
AU  - Bobić, Biljana
AU  - Stojanović, Blaža
AU  - Franek, Friedrich
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3273
AB  - Metal matrix composites are very inhomogeneous materials, and their properties depend on various parameters (production process, constituents, their interfaces, etc.). The influence of SiC microparticles (40 mu m) reinforcement and graphite macroparticles (200-800 mu m) addition on the mechanical properties of Al-Si A356 alloy, produced by compocasting, has been assessed using macro- and nanoscale measurements of hardness and modulus of elasticity. The Al makes over 90 wt% of the A356 alloy, so the nanoscale measurements were performed on different alpha phase regions on each material (core of alpha phase, eutectic alpha phase, and alpha phase near the phase boundaries alpha phase/secondary phases). The results showed that there is no direct correlation between mechanical properties on macro- and nanoscale. The nanoscale results also showed that the secondary phases (SiC and graphite particles) can have significant effect on the mechanical properties on the atomic level, i.e. in the alpha phase regions very close to the secondary phases.
PB  - Springer Heidelberg, Heidelberg
T2  - Journal of The Brazilian Society of Mechanical Sciences and Engineering
T1  - Influence of secondary phases in A356 MMCs on their mechanical properties at macro- and nanoscale
IS  - 3
VL  - 42
DO  - 10.1007/s40430-020-2197-6
ER  - 

@article{
author = "Vencl, Aleksandar and Bobić, Ilija and Stanković, Miloš and Hvizdos, Pavol and Bobić, Biljana and Stojanović, Blaža and Franek, Friedrich",
year = "2020",
abstract = "Metal matrix composites are very inhomogeneous materials, and their properties depend on various parameters (production process, constituents, their interfaces, etc.). The influence of SiC microparticles (40 mu m) reinforcement and graphite macroparticles (200-800 mu m) addition on the mechanical properties of Al-Si A356 alloy, produced by compocasting, has been assessed using macro- and nanoscale measurements of hardness and modulus of elasticity. The Al makes over 90 wt% of the A356 alloy, so the nanoscale measurements were performed on different alpha phase regions on each material (core of alpha phase, eutectic alpha phase, and alpha phase near the phase boundaries alpha phase/secondary phases). The results showed that there is no direct correlation between mechanical properties on macro- and nanoscale. The nanoscale results also showed that the secondary phases (SiC and graphite particles) can have significant effect on the mechanical properties on the atomic level, i.e. in the alpha phase regions very close to the secondary phases.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Journal of The Brazilian Society of Mechanical Sciences and Engineering",
title = "Influence of secondary phases in A356 MMCs on their mechanical properties at macro- and nanoscale",
number = "3",
volume = "42",
doi = "10.1007/s40430-020-2197-6"
}

Vencl, A., Bobić, I., Stanković, M., Hvizdos, P., Bobić, B., Stojanović, B.,& Franek, F.. (2020). Influence of secondary phases in A356 MMCs on their mechanical properties at macro- and nanoscale. in Journal of The Brazilian Society of Mechanical Sciences and Engineering
Springer Heidelberg, Heidelberg., 42(3).
https://doi.org/10.1007/s40430-020-2197-6

Vencl A, Bobić I, Stanković M, Hvizdos P, Bobić B, Stojanović B, Franek F. Influence of secondary phases in A356 MMCs on their mechanical properties at macro- and nanoscale. in Journal of The Brazilian Society of Mechanical Sciences and Engineering. 2020;42(3).
doi:10.1007/s40430-020-2197-6 .

Vencl, Aleksandar, Bobić, Ilija, Stanković, Miloš, Hvizdos, Pavol, Bobić, Biljana, Stojanović, Blaža, Franek, Friedrich, "Influence of secondary phases in A356 MMCs on their mechanical properties at macro- and nanoscale" in Journal of The Brazilian Society of Mechanical Sciences and Engineering, 42, no. 3 (2020),
https://doi.org/10.1007/s40430-020-2197-6 . .

TY  - JOUR
AU  - Jegdić, Bore
AU  - Bobić, Biljana
AU  - Linić, Suzana
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3404
AB  - The paper analyses the corrosion behaviour of naturally and artificially aged AA2024 alloy in NaCl solution and in the presence of an environment-friendly corrosion inhibitor, CeCl3. On the basis of the values of polarisation resistance and corrosion current density, the corrosion resistance of the protective inhibitor film is established as well as the general corrosion resistance of this aluminium alloy. Resistance to pit formation is determined based on the difference in pitting and corrosion potentials while resistance to pit growth is determined based on the amount of charge consumed during pit growth. A scanning electron microscope is used to examine the morphology of the pits formed during the pitting corrosion testing, as well as to determine the cerium content on intermetallic particles and the matrix AA2024 alloy. The corrosion behaviour of AA2024 alloy is investigated after different test periods in NaCl solution and in the same solution with the CeCl3 inhibitor. The corrosion resistance of both tempers of AA2024 alloy is more than one order of magnitude higher in the presence of CeCl3. An explanation of the observed differences in the corrosion behaviour of the naturally and artificially aged AA2024 alloy is proposed. Different corrosion behaviour of the alloy after different test periods is also explained.
PB  - Wiley-V C H Verlag Gmbh, Weinheim
T2  - Materials and Corrosion-Werkstoffe Und Korrosion
T1  - Corrosion behaviour of AA2024 aluminium alloy in different tempers in NaCl solution and with the CeCl3 corrosion inhibitor
EP  - 364
IS  - 3
SP  - 352
VL  - 71
DO  - 10.1002/maco.201911219
ER  - 

@article{
author = "Jegdić, Bore and Bobić, Biljana and Linić, Suzana",
year = "2020",
abstract = "The paper analyses the corrosion behaviour of naturally and artificially aged AA2024 alloy in NaCl solution and in the presence of an environment-friendly corrosion inhibitor, CeCl3. On the basis of the values of polarisation resistance and corrosion current density, the corrosion resistance of the protective inhibitor film is established as well as the general corrosion resistance of this aluminium alloy. Resistance to pit formation is determined based on the difference in pitting and corrosion potentials while resistance to pit growth is determined based on the amount of charge consumed during pit growth. A scanning electron microscope is used to examine the morphology of the pits formed during the pitting corrosion testing, as well as to determine the cerium content on intermetallic particles and the matrix AA2024 alloy. The corrosion behaviour of AA2024 alloy is investigated after different test periods in NaCl solution and in the same solution with the CeCl3 inhibitor. The corrosion resistance of both tempers of AA2024 alloy is more than one order of magnitude higher in the presence of CeCl3. An explanation of the observed differences in the corrosion behaviour of the naturally and artificially aged AA2024 alloy is proposed. Different corrosion behaviour of the alloy after different test periods is also explained.",
publisher = "Wiley-V C H Verlag Gmbh, Weinheim",
journal = "Materials and Corrosion-Werkstoffe Und Korrosion",
title = "Corrosion behaviour of AA2024 aluminium alloy in different tempers in NaCl solution and with the CeCl3 corrosion inhibitor",
pages = "364-352",
number = "3",
volume = "71",
doi = "10.1002/maco.201911219"
}

Jegdić, B., Bobić, B.,& Linić, S.. (2020). Corrosion behaviour of AA2024 aluminium alloy in different tempers in NaCl solution and with the CeCl3 corrosion inhibitor. in Materials and Corrosion-Werkstoffe Und Korrosion
Wiley-V C H Verlag Gmbh, Weinheim., 71(3), 352-364.
https://doi.org/10.1002/maco.201911219

Jegdić B, Bobić B, Linić S. Corrosion behaviour of AA2024 aluminium alloy in different tempers in NaCl solution and with the CeCl3 corrosion inhibitor. in Materials and Corrosion-Werkstoffe Und Korrosion. 2020;71(3):352-364.
doi:10.1002/maco.201911219 .

Jegdić, Bore, Bobić, Biljana, Linić, Suzana, "Corrosion behaviour of AA2024 aluminium alloy in different tempers in NaCl solution and with the CeCl3 corrosion inhibitor" in Materials and Corrosion-Werkstoffe Und Korrosion, 71, no. 3 (2020):352-364,
https://doi.org/10.1002/maco.201911219 . .

TY  - JOUR
AU  - Vencl, Aleksandar
AU  - Vučetić, Filip
AU  - Bobić, Biljana
AU  - Pitel, Jan
AU  - Bobić, Ilija
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3146
AB  - The influence of SiC microparticles reinforcement and graphite macroparticles addition on the friction and wear characteristics of A356 Al-Si alloys, produced by compocasting, has been assessed using a pin-on-disc tribometer. The incorporation of SiC reinforcement increased the coefficient of friction and reduced the wear. The addition of graphite did not reduce the coefficient of friction. In the case of hybrid composite with 1wt% graphite, wear was more or less the same as with SiC reinforced composite, while in the case of hybrid composite with 3wt% graphite, wear was further reduced. On the worn surfaces of hybrid composites, the presence of the discontinuous mixed surface layer, containing graphite and transferred counter-body material, was noticed.
PB  - Springer London Ltd, London
T2  - International Journal of Advanced Manufacturing Technology
T1  - Tribological characterisation in dry sliding conditions of compocasted
hybrid A356/SiCp/Grp composites with graphite macroparticles
EP  - 2146
IS  - 9-12
SP  - 2135
VL  - 100
DO  - 10.1007/s00170-018-2866-0
ER  - 

@article{
author = "Vencl, Aleksandar and Vučetić, Filip and Bobić, Biljana and Pitel, Jan and Bobić, Ilija",
year = "2019",
abstract = "The influence of SiC microparticles reinforcement and graphite macroparticles addition on the friction and wear characteristics of A356 Al-Si alloys, produced by compocasting, has been assessed using a pin-on-disc tribometer. The incorporation of SiC reinforcement increased the coefficient of friction and reduced the wear. The addition of graphite did not reduce the coefficient of friction. In the case of hybrid composite with 1wt% graphite, wear was more or less the same as with SiC reinforced composite, while in the case of hybrid composite with 3wt% graphite, wear was further reduced. On the worn surfaces of hybrid composites, the presence of the discontinuous mixed surface layer, containing graphite and transferred counter-body material, was noticed.",
publisher = "Springer London Ltd, London",
journal = "International Journal of Advanced Manufacturing Technology",
title = "Tribological characterisation in dry sliding conditions of compocasted
hybrid A356/SiCp/Grp composites with graphite macroparticles",
pages = "2146-2135",
number = "9-12",
volume = "100",
doi = "10.1007/s00170-018-2866-0"
}

Vencl, A., Vučetić, F., Bobić, B., Pitel, J.,& Bobić, I.. (2019). Tribological characterisation in dry sliding conditions of compocasted
hybrid A356/SiCp/Grp composites with graphite macroparticles. in International Journal of Advanced Manufacturing Technology
Springer London Ltd, London., 100(9-12), 2135-2146.
https://doi.org/10.1007/s00170-018-2866-0

Vencl A, Vučetić F, Bobić B, Pitel J, Bobić I. Tribological characterisation in dry sliding conditions of compocasted
hybrid A356/SiCp/Grp composites with graphite macroparticles. in International Journal of Advanced Manufacturing Technology. 2019;100(9-12):2135-2146.
doi:10.1007/s00170-018-2866-0 .

Vencl, Aleksandar, Vučetić, Filip, Bobić, Biljana, Pitel, Jan, Bobić, Ilija, "Tribological characterisation in dry sliding conditions of compocasted
hybrid A356/SiCp/Grp composites with graphite macroparticles" in International Journal of Advanced Manufacturing Technology, 100, no. 9-12 (2019):2135-2146,
https://doi.org/10.1007/s00170-018-2866-0 . .

TY  - JOUR
AU  - Vencl, Aleksandar
AU  - Bobić, Ilija
AU  - Bobić, Biljana
AU  - Jakimovska, Kristina
AU  - Svoboda, Petr
AU  - Kandeva, Mara
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3140
AB  - Metal matrix nanocomposites (MMnCs) comprise a metal matrix filled with nanosized reinforcements with physical and mechanical properties that are very different from those of the matrix. In ZA-27 alloy-based nanocomposites, the metal matrix provides ductility and toughness, while usually used ceramic reinforcements give high strength and hardness. Tested ZA-27 alloy-based nanocomposites, reinforced with different types (SiC and Al2O3), amounts (0.2 wt.%, 0.3 wt.%, and 0.5 wt.%) and sizes (25 nm, 50 nm, and 100 nm) of nanoparticles were produced through the compocasting process with mechanical alloying pre-processing (ball milling). It was previously shown that the presence of nanoparticles in ZA-27 alloy-based nanocomposites led to the formation of a finer structure in the nanocomposites matrix and an improvement in the basic mechanical properties (hardness and compressive yield strength) through the enhanced dislocation density strengthening mechanism. Solid particle erosive wear testing demonstrated that these improvements were followed with an increase in the erosive wear resistance of tested nanocomposites, as well. Additionally, by analyzing the influences of type, amount, and size of nanoparticles on the erosive wear resistance of nanocomposites, it was demonstrated that there is an optimal amount of nanoparticles, which in our case is 0.3 wt.%, and that the presence of SiC nanoparticles and smaller nanoparticles in nanocomposites had more beneficial influence on erosive wear resistance.
PB  - Springeropen, London
T2  - Friction
T1  - Erosive wear properties of ZA-27 alloy-based nanocomposites: Influence of type, amount, and size of nanoparticle reinforcements
EP  - 350
IS  - 4
SP  - 340
VL  - 7
DO  - 10.1007/s40544-018-0222-x
ER  - 

@article{
author = "Vencl, Aleksandar and Bobić, Ilija and Bobić, Biljana and Jakimovska, Kristina and Svoboda, Petr and Kandeva, Mara",
year = "2019",
abstract = "Metal matrix nanocomposites (MMnCs) comprise a metal matrix filled with nanosized reinforcements with physical and mechanical properties that are very different from those of the matrix. In ZA-27 alloy-based nanocomposites, the metal matrix provides ductility and toughness, while usually used ceramic reinforcements give high strength and hardness. Tested ZA-27 alloy-based nanocomposites, reinforced with different types (SiC and Al2O3), amounts (0.2 wt.%, 0.3 wt.%, and 0.5 wt.%) and sizes (25 nm, 50 nm, and 100 nm) of nanoparticles were produced through the compocasting process with mechanical alloying pre-processing (ball milling). It was previously shown that the presence of nanoparticles in ZA-27 alloy-based nanocomposites led to the formation of a finer structure in the nanocomposites matrix and an improvement in the basic mechanical properties (hardness and compressive yield strength) through the enhanced dislocation density strengthening mechanism. Solid particle erosive wear testing demonstrated that these improvements were followed with an increase in the erosive wear resistance of tested nanocomposites, as well. Additionally, by analyzing the influences of type, amount, and size of nanoparticles on the erosive wear resistance of nanocomposites, it was demonstrated that there is an optimal amount of nanoparticles, which in our case is 0.3 wt.%, and that the presence of SiC nanoparticles and smaller nanoparticles in nanocomposites had more beneficial influence on erosive wear resistance.",
publisher = "Springeropen, London",
journal = "Friction",
title = "Erosive wear properties of ZA-27 alloy-based nanocomposites: Influence of type, amount, and size of nanoparticle reinforcements",
pages = "350-340",
number = "4",
volume = "7",
doi = "10.1007/s40544-018-0222-x"
}

Vencl, A., Bobić, I., Bobić, B., Jakimovska, K., Svoboda, P.,& Kandeva, M.. (2019). Erosive wear properties of ZA-27 alloy-based nanocomposites: Influence of type, amount, and size of nanoparticle reinforcements. in Friction
Springeropen, London., 7(4), 340-350.
https://doi.org/10.1007/s40544-018-0222-x

Vencl A, Bobić I, Bobić B, Jakimovska K, Svoboda P, Kandeva M. Erosive wear properties of ZA-27 alloy-based nanocomposites: Influence of type, amount, and size of nanoparticle reinforcements. in Friction. 2019;7(4):340-350.
doi:10.1007/s40544-018-0222-x .

Vencl, Aleksandar, Bobić, Ilija, Bobić, Biljana, Jakimovska, Kristina, Svoboda, Petr, Kandeva, Mara, "Erosive wear properties of ZA-27 alloy-based nanocomposites: Influence of type, amount, and size of nanoparticle reinforcements" in Friction, 7, no. 4 (2019):340-350,
https://doi.org/10.1007/s40544-018-0222-x . .

TY  - JOUR
AU  - Bobić, Biljana
AU  - Vencl, Aleksandar
AU  - Ruzić, Jovana
AU  - Bobić, Ilija
AU  - Damnjanović, Zvonko
PY  - 2019
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/3160
AB  - Particulate nanocomposites with the base of ZA27 alloy were synthesized using an innovative route, which includes mechanical milling and compocasting. Scrap from the matrix alloy and ceramic nanoreinforcements were mechanically milled using the ball-milling technique, which led to the formation of composite microparticles. The use of these particles in the compocasting process provided better wettability of ceramic nanoreinforcements in the semi-solid metal matrix, which resulted in a relatively good dispersion of the nanoreinforcements in nanocomposite castings. The presence of nanoreinforcements led to the grain refinement in the matrix of nanocomposites. The mechanical properties of the synthesized nanocomposites are improved and compared with the properties of the metal matrix. The observed increase in the hardness of nanocomposites with Al2O3 nanoreinforcements (20-30 nm) was 6.5% to 10.8%, while the yield strength of these nanocomposites has increased by 12.2% to 23.2%. The hardness and compressive yield strength of the nanocomposites with Al2O3 nanoparticles (100 nm) increased by 1.7% to 8.0% and 2.3% to 8.3%, respectively. The increase in hardness of the nanocomposites with SiC nanoparticles (50 nm) was 11.5% to 20.6%, while the increase in the yield strength was 15.6% to 24.5%. The greatest contribution to the overall strengthening in the synthesized nanocomposites is the result of increased dislocation density due to the difference in coefficients of thermal expansion for the matrix alloy and nanoreinforcements.
PB  - Sage Publications Ltd, London
T2  - Journal of Composite Materials
T1  - Microstructural and basic mechanical characteristics of ZA27 alloy-based nanocomposites synthesized by mechanical milling and compocasting
EP  - 2046
IS  - 15
SP  - 2033
VL  - 53
DO  - 10.1177/0021998318817876
ER  - 

@article{
author = "Bobić, Biljana and Vencl, Aleksandar and Ruzić, Jovana and Bobić, Ilija and Damnjanović, Zvonko",
year = "2019",
abstract = "Particulate nanocomposites with the base of ZA27 alloy were synthesized using an innovative route, which includes mechanical milling and compocasting. Scrap from the matrix alloy and ceramic nanoreinforcements were mechanically milled using the ball-milling technique, which led to the formation of composite microparticles. The use of these particles in the compocasting process provided better wettability of ceramic nanoreinforcements in the semi-solid metal matrix, which resulted in a relatively good dispersion of the nanoreinforcements in nanocomposite castings. The presence of nanoreinforcements led to the grain refinement in the matrix of nanocomposites. The mechanical properties of the synthesized nanocomposites are improved and compared with the properties of the metal matrix. The observed increase in the hardness of nanocomposites with Al2O3 nanoreinforcements (20-30 nm) was 6.5% to 10.8%, while the yield strength of these nanocomposites has increased by 12.2% to 23.2%. The hardness and compressive yield strength of the nanocomposites with Al2O3 nanoparticles (100 nm) increased by 1.7% to 8.0% and 2.3% to 8.3%, respectively. The increase in hardness of the nanocomposites with SiC nanoparticles (50 nm) was 11.5% to 20.6%, while the increase in the yield strength was 15.6% to 24.5%. The greatest contribution to the overall strengthening in the synthesized nanocomposites is the result of increased dislocation density due to the difference in coefficients of thermal expansion for the matrix alloy and nanoreinforcements.",
publisher = "Sage Publications Ltd, London",
journal = "Journal of Composite Materials",
title = "Microstructural and basic mechanical characteristics of ZA27 alloy-based nanocomposites synthesized by mechanical milling and compocasting",
pages = "2046-2033",
number = "15",
volume = "53",
doi = "10.1177/0021998318817876"
}

Bobić, B., Vencl, A., Ruzić, J., Bobić, I.,& Damnjanović, Z.. (2019). Microstructural and basic mechanical characteristics of ZA27 alloy-based nanocomposites synthesized by mechanical milling and compocasting. in Journal of Composite Materials
Sage Publications Ltd, London., 53(15), 2033-2046.
https://doi.org/10.1177/0021998318817876

Bobić B, Vencl A, Ruzić J, Bobić I, Damnjanović Z. Microstructural and basic mechanical characteristics of ZA27 alloy-based nanocomposites synthesized by mechanical milling and compocasting. in Journal of Composite Materials. 2019;53(15):2033-2046.
doi:10.1177/0021998318817876 .

Bobić, Biljana, Vencl, Aleksandar, Ruzić, Jovana, Bobić, Ilija, Damnjanović, Zvonko, "Microstructural and basic mechanical characteristics of ZA27 alloy-based nanocomposites synthesized by mechanical milling and compocasting" in Journal of Composite Materials, 53, no. 15 (2019):2033-2046,
https://doi.org/10.1177/0021998318817876 . .

TY  - JOUR
AU  - Vencl, Aleksandar
AU  - Bobić, Biljana
AU  - Vučetić, Filip
AU  - Svoboda, Petr
AU  - Popović, Vladimir
AU  - Bobić, Ilija
PY  - 2018
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2827
AB  - Nanocomposites were synthesized via compocasting using Zn25Al3Si and Zn25Al3Si0.03Sr alloys as the matrices and nanoparticles of Al2O3 (1 wt%) as the reinforcement. Structure of the nanocomposites was examined, and their basic mechanical and tribological properties were tested. Distribution of primary silicon particles in the structure of nanocomposites has been improved compared to their distribution in the Zn25Al3Si matrix alloy due to the presence of Al2O3 nanoparticles and strontium. The primary silicon particles in the structure of the nanocomposites were found to be more fine-grained compared to the same particles in the structure of the as-cast Zn25Al3Si alloy. Tested mechanical properties of the nanocomposite with Zn25Al3Si alloy matrix are improved, compared to the matrix alloy. The nanocomposite with Zn25Al3Si0.03Sr alloy matrix is characterized with slightly higher value of compressive yield strength and a slightly lower hardness value compared to the as-cast Zn25Al3Si alloy. Both nanocomposites showed lower wear rate and higher coefficient of friction, compared to the matrix alloy, in sliding under the boundary lubricating regime. However, the nanocomposite with Zn25Al3Si alloy matrix showed better tribological properties than the nanocomposite with Zn25Al3Si0.03Sr alloy matrix.
PB  - Springer Heidelberg, Heidelberg
T2  - Journal of The Brazilian Society of Mechanical Sciences and Engineering
T1  - Effect of Al2O3 nanoparticles and strontium addition on structural, mechanical and tribological properties of Zn25Al3Si alloy
IS  - 11
VL  - 40
DO  - 10.1007/s40430-018-1441-9
ER  - 

@article{
author = "Vencl, Aleksandar and Bobić, Biljana and Vučetić, Filip and Svoboda, Petr and Popović, Vladimir and Bobić, Ilija",
year = "2018",
abstract = "Nanocomposites were synthesized via compocasting using Zn25Al3Si and Zn25Al3Si0.03Sr alloys as the matrices and nanoparticles of Al2O3 (1 wt%) as the reinforcement. Structure of the nanocomposites was examined, and their basic mechanical and tribological properties were tested. Distribution of primary silicon particles in the structure of nanocomposites has been improved compared to their distribution in the Zn25Al3Si matrix alloy due to the presence of Al2O3 nanoparticles and strontium. The primary silicon particles in the structure of the nanocomposites were found to be more fine-grained compared to the same particles in the structure of the as-cast Zn25Al3Si alloy. Tested mechanical properties of the nanocomposite with Zn25Al3Si alloy matrix are improved, compared to the matrix alloy. The nanocomposite with Zn25Al3Si0.03Sr alloy matrix is characterized with slightly higher value of compressive yield strength and a slightly lower hardness value compared to the as-cast Zn25Al3Si alloy. Both nanocomposites showed lower wear rate and higher coefficient of friction, compared to the matrix alloy, in sliding under the boundary lubricating regime. However, the nanocomposite with Zn25Al3Si alloy matrix showed better tribological properties than the nanocomposite with Zn25Al3Si0.03Sr alloy matrix.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Journal of The Brazilian Society of Mechanical Sciences and Engineering",
title = "Effect of Al2O3 nanoparticles and strontium addition on structural, mechanical and tribological properties of Zn25Al3Si alloy",
number = "11",
volume = "40",
doi = "10.1007/s40430-018-1441-9"
}

Vencl, A., Bobić, B., Vučetić, F., Svoboda, P., Popović, V.,& Bobić, I.. (2018). Effect of Al2O3 nanoparticles and strontium addition on structural, mechanical and tribological properties of Zn25Al3Si alloy. in Journal of The Brazilian Society of Mechanical Sciences and Engineering
Springer Heidelberg, Heidelberg., 40(11).
https://doi.org/10.1007/s40430-018-1441-9

Vencl A, Bobić B, Vučetić F, Svoboda P, Popović V, Bobić I. Effect of Al2O3 nanoparticles and strontium addition on structural, mechanical and tribological properties of Zn25Al3Si alloy. in Journal of The Brazilian Society of Mechanical Sciences and Engineering. 2018;40(11).
doi:10.1007/s40430-018-1441-9 .

Vencl, Aleksandar, Bobić, Biljana, Vučetić, Filip, Svoboda, Petr, Popović, Vladimir, Bobić, Ilija, "Effect of Al2O3 nanoparticles and strontium addition on structural, mechanical and tribological properties of Zn25Al3Si alloy" in Journal of The Brazilian Society of Mechanical Sciences and Engineering, 40, no. 11 (2018),
https://doi.org/10.1007/s40430-018-1441-9 . .

TY  - JOUR
AU  - Bobić, Biljana
AU  - Bobić, Ilija
AU  - Vencl, Aleksandar
AU  - Babić, M.
AU  - Mitrović, Slobodan
PY  - 2016
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2374
AB  - The corrosion behavior of particulate ZA27/SiCp composites in an aerated sodium chloride solution was studied. The composites were synthesized via compocasting with addition of 1, 3 and 5 wt.% SiC particles in the matrix alloy. Composite samples were immersed for 30 days in the 3.5 wt.% NaCl solution open to the atmospheric air. Surface appearance and microstructure of the composites were examined by means of optical microscopy and scanning electron microscopy, while corrosion rates of the composites were determined using the weight loss method. It was revealed that SiC particles were not influenced by corrosion. General uniform corrosion occurred in the composite matrices, mainly in the region of the η phase. Local corrosion was noticed in micro-cracks and near clusters of particulate reinforcements. Results of microstructural examinations and immersion test indicate a slightly lower corrosion resistance of the ZA27/SiCp composites compared to that of the matrix alloy.
PB  - Fakultet inženjerskih nauka, Kragujevac
T2  - Tribology in Industry
T1  - Corrosion behavior of compocasted ZA27/SiCp composites in sodium chloride solution
EP  - 120
IS  - 1
SP  - 115
VL  - 38
UR  - https://hdl.handle.net/21.15107/rcub_machinery_2374
ER  - 

@article{
author = "Bobić, Biljana and Bobić, Ilija and Vencl, Aleksandar and Babić, M. and Mitrović, Slobodan",
year = "2016",
abstract = "The corrosion behavior of particulate ZA27/SiCp composites in an aerated sodium chloride solution was studied. The composites were synthesized via compocasting with addition of 1, 3 and 5 wt.% SiC particles in the matrix alloy. Composite samples were immersed for 30 days in the 3.5 wt.% NaCl solution open to the atmospheric air. Surface appearance and microstructure of the composites were examined by means of optical microscopy and scanning electron microscopy, while corrosion rates of the composites were determined using the weight loss method. It was revealed that SiC particles were not influenced by corrosion. General uniform corrosion occurred in the composite matrices, mainly in the region of the η phase. Local corrosion was noticed in micro-cracks and near clusters of particulate reinforcements. Results of microstructural examinations and immersion test indicate a slightly lower corrosion resistance of the ZA27/SiCp composites compared to that of the matrix alloy.",
publisher = "Fakultet inženjerskih nauka, Kragujevac",
journal = "Tribology in Industry",
title = "Corrosion behavior of compocasted ZA27/SiCp composites in sodium chloride solution",
pages = "120-115",
number = "1",
volume = "38",
url = "https://hdl.handle.net/21.15107/rcub_machinery_2374"
}

Bobić, B., Bobić, I., Vencl, A., Babić, M.,& Mitrović, S.. (2016). Corrosion behavior of compocasted ZA27/SiCp composites in sodium chloride solution. in Tribology in Industry
Fakultet inženjerskih nauka, Kragujevac., 38(1), 115-120.
https://hdl.handle.net/21.15107/rcub_machinery_2374

Bobić B, Bobić I, Vencl A, Babić M, Mitrović S. Corrosion behavior of compocasted ZA27/SiCp composites in sodium chloride solution. in Tribology in Industry. 2016;38(1):115-120.
https://hdl.handle.net/21.15107/rcub_machinery_2374 .

Bobić, Biljana, Bobić, Ilija, Vencl, Aleksandar, Babić, M., Mitrović, Slobodan, "Corrosion behavior of compocasted ZA27/SiCp composites in sodium chloride solution" in Tribology in Industry, 38, no. 1 (2016):115-120,
https://hdl.handle.net/21.15107/rcub_machinery_2374 .

TY  - GEN
AU  - Bobić, Biljana
AU  - Vencl, Aleksandar
AU  - Babić, Miroslav
AU  - Ružić, Jovana
AU  - Jegdić, Bore
AU  - Bobić, Ilija
PY  - 2016
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4357
T1  - Dobijanje nanokompozita sa osnovom od legure cinka ZA-27 uz dodatak nanočestica SiC ili Al2O3 kombinacijom mehaničkog legiranja i kompokasting postupka
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4357
ER  - 

@misc{
author = "Bobić, Biljana and Vencl, Aleksandar and Babić, Miroslav and Ružić, Jovana and Jegdić, Bore and Bobić, Ilija",
year = "2016",
title = "Dobijanje nanokompozita sa osnovom od legure cinka ZA-27 uz dodatak nanočestica SiC ili Al2O3 kombinacijom mehaničkog legiranja i kompokasting postupka",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4357"
}

Bobić, B., Vencl, A., Babić, M., Ružić, J., Jegdić, B.,& Bobić, I.. (2016). Dobijanje nanokompozita sa osnovom od legure cinka ZA-27 uz dodatak nanočestica SiC ili Al2O3 kombinacijom mehaničkog legiranja i kompokasting postupka. .
https://hdl.handle.net/21.15107/rcub_machinery_4357

Bobić B, Vencl A, Babić M, Ružić J, Jegdić B, Bobić I. Dobijanje nanokompozita sa osnovom od legure cinka ZA-27 uz dodatak nanočestica SiC ili Al2O3 kombinacijom mehaničkog legiranja i kompokasting postupka. 2016;.
https://hdl.handle.net/21.15107/rcub_machinery_4357 .

Bobić, Biljana, Vencl, Aleksandar, Babić, Miroslav, Ružić, Jovana, Jegdić, Bore, Bobić, Ilija, "Dobijanje nanokompozita sa osnovom od legure cinka ZA-27 uz dodatak nanočestica SiC ili Al2O3 kombinacijom mehaničkog legiranja i kompokasting postupka" (2016),
https://hdl.handle.net/21.15107/rcub_machinery_4357 .

TY  - GEN
AU  - Jegdić, Bore
AU  - Bobić, Biljana
AU  - Panić, Vladimir
AU  - Vencl, Aleksandar
AU  - Stevanović, Jasmina
AU  - Bobić, Ilija
PY  - 2016
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4358
T1  - Postupak određivanja sklonosti prema interkristalnoj koroziji nerđajućeg čelika X5CrNi18-10 na terenu
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4358
ER  - 

@misc{
author = "Jegdić, Bore and Bobić, Biljana and Panić, Vladimir and Vencl, Aleksandar and Stevanović, Jasmina and Bobić, Ilija",
year = "2016",
title = "Postupak određivanja sklonosti prema interkristalnoj koroziji nerđajućeg čelika X5CrNi18-10 na terenu",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4358"
}

Jegdić, B., Bobić, B., Panić, V., Vencl, A., Stevanović, J.,& Bobić, I.. (2016). Postupak određivanja sklonosti prema interkristalnoj koroziji nerđajućeg čelika X5CrNi18-10 na terenu. .
https://hdl.handle.net/21.15107/rcub_machinery_4358

Jegdić B, Bobić B, Panić V, Vencl A, Stevanović J, Bobić I. Postupak određivanja sklonosti prema interkristalnoj koroziji nerđajućeg čelika X5CrNi18-10 na terenu. 2016;.
https://hdl.handle.net/21.15107/rcub_machinery_4358 .

Jegdić, Bore, Bobić, Biljana, Panić, Vladimir, Vencl, Aleksandar, Stevanović, Jasmina, Bobić, Ilija, "Postupak određivanja sklonosti prema interkristalnoj koroziji nerđajućeg čelika X5CrNi18-10 na terenu" (2016),
https://hdl.handle.net/21.15107/rcub_machinery_4358 .

TY  - JOUR
AU  - Bobić, Biljana
AU  - Vencl, Aleksandar
AU  - Babić, M.
AU  - Mitrović, Slobodan
AU  - Bobić, Ilija
PY  - 2014
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2006
AB  - The influence of corrosion on the microstructure of ZA27/SiCp composites was examined. The composites were produced by compo casting technique and then subjected to the thermal treatment (T4 regime). Microstructural examinations were performed after 30-day exposure of thermally treated composites in the sodium-chloride solution. Corrosion processes have occurred in the composite matrix. Corrosion did not affect SiC particles in the composites. The local progress of corrosion in depth of the composite matrix was noticed in micro-cracks. Corrosion resistance of ZA27/SiCp composites was evaluated based on the mass loss of composite samples during the immersion test. It was found that corrosion resistance of the composites decreased with increase in content of SiC particles. The applied thermal treatment had a negative influence on the corrosion resistance of ZA27/SiCp composites.
PB  - Fakultet inženjerskih nauka, Kragujevac
T2  - Tribology in Industry
T1  - The influence of corrosion on the microstructure of thermally treated ZA27/SiCp composites
EP  - 39
IS  - 1
SP  - 33
VL  - 36
UR  - https://hdl.handle.net/21.15107/rcub_machinery_2006
ER  - 

@article{
author = "Bobić, Biljana and Vencl, Aleksandar and Babić, M. and Mitrović, Slobodan and Bobić, Ilija",
year = "2014",
abstract = "The influence of corrosion on the microstructure of ZA27/SiCp composites was examined. The composites were produced by compo casting technique and then subjected to the thermal treatment (T4 regime). Microstructural examinations were performed after 30-day exposure of thermally treated composites in the sodium-chloride solution. Corrosion processes have occurred in the composite matrix. Corrosion did not affect SiC particles in the composites. The local progress of corrosion in depth of the composite matrix was noticed in micro-cracks. Corrosion resistance of ZA27/SiCp composites was evaluated based on the mass loss of composite samples during the immersion test. It was found that corrosion resistance of the composites decreased with increase in content of SiC particles. The applied thermal treatment had a negative influence on the corrosion resistance of ZA27/SiCp composites.",
publisher = "Fakultet inženjerskih nauka, Kragujevac",
journal = "Tribology in Industry",
title = "The influence of corrosion on the microstructure of thermally treated ZA27/SiCp composites",
pages = "39-33",
number = "1",
volume = "36",
url = "https://hdl.handle.net/21.15107/rcub_machinery_2006"
}

Bobić, B., Vencl, A., Babić, M., Mitrović, S.,& Bobić, I.. (2014). The influence of corrosion on the microstructure of thermally treated ZA27/SiCp composites. in Tribology in Industry
Fakultet inženjerskih nauka, Kragujevac., 36(1), 33-39.
https://hdl.handle.net/21.15107/rcub_machinery_2006

Bobić B, Vencl A, Babić M, Mitrović S, Bobić I. The influence of corrosion on the microstructure of thermally treated ZA27/SiCp composites. in Tribology in Industry. 2014;36(1):33-39.
https://hdl.handle.net/21.15107/rcub_machinery_2006 .

Bobić, Biljana, Vencl, Aleksandar, Babić, M., Mitrović, Slobodan, Bobić, Ilija, "The influence of corrosion on the microstructure of thermally treated ZA27/SiCp composites" in Tribology in Industry, 36, no. 1 (2014):33-39,
https://hdl.handle.net/21.15107/rcub_machinery_2006 .

TY  - JOUR
AU  - Vencl, Aleksandar
AU  - Bobić, Ilija
AU  - Vučetić, Filip
AU  - Bobić, Biljana
PY  - 2014
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4311
AB  - The zinc-aluminium based casting alloy ZA-27 is well-established alloy and is frequently used materials for sleeves of plain bearings. It has good physical, mechanical and tribological properties. However, one of the major disadvantages is its dimensional instability over a period of time (ageing). To overcome this, the copper in the alloy may be replaced by silicon. Coarsening of the silicon particles is controlled by suitable additions of strontium. The influence of the strontium addition on friction and wear properties in boundary lubricated conditions was done on block-on-disc tribometer. The tests were carried-out for three Zn25Al1Si alloys with variable strontium content (0 wt. %, 0.03 wt. % and 0.05 wt. %), and, for the purpose of comparison, for standard ZA-27 alloy. Tests have confirmed that the wear rate of zinc-aluminium alloys with silicon is lower than the standard ZA-27, and have shown that the strontium addition lowers that rate additionally, with the slight increase of the coefficient of friction.
T2  - Tribological Journal BULTRIB
T1  - The influence of strontium addition on the tribological properties of Zn25Al1Si alloy in boundary lubricated condition
EP  - 30
SP  - 25
VL  - 4
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4311
ER  - 

@article{
author = "Vencl, Aleksandar and Bobić, Ilija and Vučetić, Filip and Bobić, Biljana",
year = "2014",
abstract = "The zinc-aluminium based casting alloy ZA-27 is well-established alloy and is frequently used materials for sleeves of plain bearings. It has good physical, mechanical and tribological properties. However, one of the major disadvantages is its dimensional instability over a period of time (ageing). To overcome this, the copper in the alloy may be replaced by silicon. Coarsening of the silicon particles is controlled by suitable additions of strontium. The influence of the strontium addition on friction and wear properties in boundary lubricated conditions was done on block-on-disc tribometer. The tests were carried-out for three Zn25Al1Si alloys with variable strontium content (0 wt. %, 0.03 wt. % and 0.05 wt. %), and, for the purpose of comparison, for standard ZA-27 alloy. Tests have confirmed that the wear rate of zinc-aluminium alloys with silicon is lower than the standard ZA-27, and have shown that the strontium addition lowers that rate additionally, with the slight increase of the coefficient of friction.",
journal = "Tribological Journal BULTRIB",
title = "The influence of strontium addition on the tribological properties of Zn25Al1Si alloy in boundary lubricated condition",
pages = "30-25",
volume = "4",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4311"
}

Vencl, A., Bobić, I., Vučetić, F.,& Bobić, B.. (2014). The influence of strontium addition on the tribological properties of Zn25Al1Si alloy in boundary lubricated condition. in Tribological Journal BULTRIB, 4, 25-30.
https://hdl.handle.net/21.15107/rcub_machinery_4311

Vencl A, Bobić I, Vučetić F, Bobić B. The influence of strontium addition on the tribological properties of Zn25Al1Si alloy in boundary lubricated condition. in Tribological Journal BULTRIB. 2014;4:25-30.
https://hdl.handle.net/21.15107/rcub_machinery_4311 .

Vencl, Aleksandar, Bobić, Ilija, Vučetić, Filip, Bobić, Biljana, "The influence of strontium addition on the tribological properties of Zn25Al1Si alloy in boundary lubricated condition" in Tribological Journal BULTRIB, 4 (2014):25-30,
https://hdl.handle.net/21.15107/rcub_machinery_4311 .

TY  - CONF
AU  - Vencl, Aleksandar
AU  - Bobić, Ilija
AU  - Vučetić, Filip
AU  - Bobić, Biljana
AU  - Kandeva, Mara
PY  - 2014
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4341
AB  - The zinc-aluminium based casting alloy ZA-27 is well-established alloy and is frequently used materials for sleeves of plain bearings. It has good physical, mechanical and tribological properties. However, one of the major disadvantages is its dimensional instability over a period of time (ageing). To overcome this, the copper in the alloy may be replaced by silicon. Coarsening of the silicon particles is controlled by suitable additions of strontium. The influence of the strontium addition on friction and wear properties in boundary lubricated conditions was done on block-on-disc tribometer. The tests were carried-out for three Zn25Al3Si alloys with variable strontium content (0 wt. %, 0.03 wt. % and 0.05 wt. %), and, for the purpose of comparison, for standard ZA-27 alloy. Tests have confirmed that the wear rate of zinc-aluminium alloys with silicon is lower than the standard ZA-27, and have shown that the strontium addition lowers that rate additionally, with the slight increase of the coefficient of friction.
C3  - Proceedings of the International Conference on Materials, Tribology, Recycling – MATRIB 2014
T1  - The influence of strontium addition on the tribological properties of Zn25Al3Si alloy in boundary lubricated condition
EP  - 616
SP  - 609
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4341
ER  - 

@conference{
author = "Vencl, Aleksandar and Bobić, Ilija and Vučetić, Filip and Bobić, Biljana and Kandeva, Mara",
year = "2014",
abstract = "The zinc-aluminium based casting alloy ZA-27 is well-established alloy and is frequently used materials for sleeves of plain bearings. It has good physical, mechanical and tribological properties. However, one of the major disadvantages is its dimensional instability over a period of time (ageing). To overcome this, the copper in the alloy may be replaced by silicon. Coarsening of the silicon particles is controlled by suitable additions of strontium. The influence of the strontium addition on friction and wear properties in boundary lubricated conditions was done on block-on-disc tribometer. The tests were carried-out for three Zn25Al3Si alloys with variable strontium content (0 wt. %, 0.03 wt. % and 0.05 wt. %), and, for the purpose of comparison, for standard ZA-27 alloy. Tests have confirmed that the wear rate of zinc-aluminium alloys with silicon is lower than the standard ZA-27, and have shown that the strontium addition lowers that rate additionally, with the slight increase of the coefficient of friction.",
journal = "Proceedings of the International Conference on Materials, Tribology, Recycling – MATRIB 2014",
title = "The influence of strontium addition on the tribological properties of Zn25Al3Si alloy in boundary lubricated condition",
pages = "616-609",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4341"
}

Vencl, A., Bobić, I., Vučetić, F., Bobić, B.,& Kandeva, M.. (2014). The influence of strontium addition on the tribological properties of Zn25Al3Si alloy in boundary lubricated condition. in Proceedings of the International Conference on Materials, Tribology, Recycling – MATRIB 2014, 609-616.
https://hdl.handle.net/21.15107/rcub_machinery_4341

Vencl A, Bobić I, Vučetić F, Bobić B, Kandeva M. The influence of strontium addition on the tribological properties of Zn25Al3Si alloy in boundary lubricated condition. in Proceedings of the International Conference on Materials, Tribology, Recycling – MATRIB 2014. 2014;:609-616.
https://hdl.handle.net/21.15107/rcub_machinery_4341 .

Vencl, Aleksandar, Bobić, Ilija, Vučetić, Filip, Bobić, Biljana, Kandeva, Mara, "The influence of strontium addition on the tribological properties of Zn25Al3Si alloy in boundary lubricated condition" in Proceedings of the International Conference on Materials, Tribology, Recycling – MATRIB 2014 (2014):609-616,
https://hdl.handle.net/21.15107/rcub_machinery_4341 .

TY  - JOUR
AU  - Bobić, Ilija
AU  - Ruzić, Jovana
AU  - Bobić, Biljana
AU  - Babić, Miroslav
AU  - Vencl, Aleksandar
AU  - Mitrović, Slobodan
PY  - 2014
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1892
AB  - Hybrid A356/SiCp/Gr(p) composites were produced via compo-casting using the A356 aluminum alloy as the composite matrix, with silicon carbide microparticles (SiCp) and graphite macroparticles (Gr(p)) as reinforcements. The effect of the thixocasting process on the microstructure of a modified A356 alloy (with 0.03 mass% of strontium) was considered. The microstructures of the thixocast A356 alloy and the synthesized composite materials were examined by means of optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive X-ray spectrometry (EDS) and X-ray diffraction (XRD). The fracture surfaces of the composite matrix and the composites were also analyzed. The thixocast A356 alloy and the composites were subjected to artificial aging after a solution heat treatment. Aging kinetics was followed by hardness measurements. Differential scanning calorimetry (DSC) was applied to reveal the presence of phases formed during artificial aging. The composites reached maximum hardness faster than the thixocast A356 alloy. The time required to attain peak hardness decreases with the increase in the content of particulate reinforcements.
PB  - Elsevier Science Sa, Lausanne
T2  - Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing
T1  - Microstructural characterization and artificial aging of compo-casted hybrid A356/SiCp/Gr(p) composites with graphite macroparticles
EP  - 15
SP  - 7
VL  - 612
DO  - 10.1016/j.msea.2014.06.028
ER  - 

@article{
author = "Bobić, Ilija and Ruzić, Jovana and Bobić, Biljana and Babić, Miroslav and Vencl, Aleksandar and Mitrović, Slobodan",
year = "2014",
abstract = "Hybrid A356/SiCp/Gr(p) composites were produced via compo-casting using the A356 aluminum alloy as the composite matrix, with silicon carbide microparticles (SiCp) and graphite macroparticles (Gr(p)) as reinforcements. The effect of the thixocasting process on the microstructure of a modified A356 alloy (with 0.03 mass% of strontium) was considered. The microstructures of the thixocast A356 alloy and the synthesized composite materials were examined by means of optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive X-ray spectrometry (EDS) and X-ray diffraction (XRD). The fracture surfaces of the composite matrix and the composites were also analyzed. The thixocast A356 alloy and the composites were subjected to artificial aging after a solution heat treatment. Aging kinetics was followed by hardness measurements. Differential scanning calorimetry (DSC) was applied to reveal the presence of phases formed during artificial aging. The composites reached maximum hardness faster than the thixocast A356 alloy. The time required to attain peak hardness decreases with the increase in the content of particulate reinforcements.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing",
title = "Microstructural characterization and artificial aging of compo-casted hybrid A356/SiCp/Gr(p) composites with graphite macroparticles",
pages = "15-7",
volume = "612",
doi = "10.1016/j.msea.2014.06.028"
}

Bobić, I., Ruzić, J., Bobić, B., Babić, M., Vencl, A.,& Mitrović, S.. (2014). Microstructural characterization and artificial aging of compo-casted hybrid A356/SiCp/Gr(p) composites with graphite macroparticles. in Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing
Elsevier Science Sa, Lausanne., 612, 7-15.
https://doi.org/10.1016/j.msea.2014.06.028

Bobić I, Ruzić J, Bobić B, Babić M, Vencl A, Mitrović S. Microstructural characterization and artificial aging of compo-casted hybrid A356/SiCp/Gr(p) composites with graphite macroparticles. in Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing. 2014;612:7-15.
doi:10.1016/j.msea.2014.06.028 .

Bobić, Ilija, Ruzić, Jovana, Bobić, Biljana, Babić, Miroslav, Vencl, Aleksandar, Mitrović, Slobodan, "Microstructural characterization and artificial aging of compo-casted hybrid A356/SiCp/Gr(p) composites with graphite macroparticles" in Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 612 (2014):7-15,
https://doi.org/10.1016/j.msea.2014.06.028 . .

TY  - JOUR
AU  - Vencl, Aleksandar
AU  - Bobić, Ilija
AU  - Vučetić, Filip
AU  - Bobić, Biljana
AU  - Ruzić, Jovana
PY  - 2014
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1908
AB  - The ZA-27 alloy is a zinc-aluminium casting alloy that has been frequently used as the material for sleeves of plain bearings. It has good physical, mechanical and tribological properties. However, one of the major disadvantages is its dimensional instability over a period of time (ageing). To overcome this, copper in the alloy may be replaced with silicon. Coarsening of silicon particles can be controlled by a suitable addition of strontium. In this paper, the commercial ZA-27 alloy and six different Zn25Al alloys (with 1 and 3 wt.% silicon; and with 0, 0.03 and 0.05 wt.% strontium) were obtained by casting in the pre-heated steel mould. Casting of the alloys was carried out at a laboratory level. In the alloys containing silicon, a finer dendritic structure was noticed compared to the structure of the commercial ZA-27 alloy. The addition of strontium influenced the size and distribution of primary silicon particles. Needle-like particles of eutectic silicon were changed into the fibrous ones. The presence of silicon and strontium did not significantly affect mechanical properties of the obtained Zn25Al alloys compared to mechanical properties of the commercial ZA-27 alloy. Wear rate of the alloys containing silicon was lower than that of the ZA-27 alloy. The addition of strontium further lowers the wear rate and slightly increases the coefficient of friction.
PB  - Elsevier Sci Ltd, Oxford
T2  - Materials & Design
T1  - Structural, mechanical and tribological characterization of Zn25Al alloys with Si and Sr addition
EP  - 392
SP  - 381
VL  - 64
DO  - 10.1016/j.matdes.2014.07.056
ER  - 

@article{
author = "Vencl, Aleksandar and Bobić, Ilija and Vučetić, Filip and Bobić, Biljana and Ruzić, Jovana",
year = "2014",
abstract = "The ZA-27 alloy is a zinc-aluminium casting alloy that has been frequently used as the material for sleeves of plain bearings. It has good physical, mechanical and tribological properties. However, one of the major disadvantages is its dimensional instability over a period of time (ageing). To overcome this, copper in the alloy may be replaced with silicon. Coarsening of silicon particles can be controlled by a suitable addition of strontium. In this paper, the commercial ZA-27 alloy and six different Zn25Al alloys (with 1 and 3 wt.% silicon; and with 0, 0.03 and 0.05 wt.% strontium) were obtained by casting in the pre-heated steel mould. Casting of the alloys was carried out at a laboratory level. In the alloys containing silicon, a finer dendritic structure was noticed compared to the structure of the commercial ZA-27 alloy. The addition of strontium influenced the size and distribution of primary silicon particles. Needle-like particles of eutectic silicon were changed into the fibrous ones. The presence of silicon and strontium did not significantly affect mechanical properties of the obtained Zn25Al alloys compared to mechanical properties of the commercial ZA-27 alloy. Wear rate of the alloys containing silicon was lower than that of the ZA-27 alloy. The addition of strontium further lowers the wear rate and slightly increases the coefficient of friction.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Materials & Design",
title = "Structural, mechanical and tribological characterization of Zn25Al alloys with Si and Sr addition",
pages = "392-381",
volume = "64",
doi = "10.1016/j.matdes.2014.07.056"
}

Vencl, A., Bobić, I., Vučetić, F., Bobić, B.,& Ruzić, J.. (2014). Structural, mechanical and tribological characterization of Zn25Al alloys with Si and Sr addition. in Materials & Design
Elsevier Sci Ltd, Oxford., 64, 381-392.
https://doi.org/10.1016/j.matdes.2014.07.056

Vencl A, Bobić I, Vučetić F, Bobić B, Ruzić J. Structural, mechanical and tribological characterization of Zn25Al alloys with Si and Sr addition. in Materials & Design. 2014;64:381-392.
doi:10.1016/j.matdes.2014.07.056 .

Vencl, Aleksandar, Bobić, Ilija, Vučetić, Filip, Bobić, Biljana, Ruzić, Jovana, "Structural, mechanical and tribological characterization of Zn25Al alloys with Si and Sr addition" in Materials & Design, 64 (2014):381-392,
https://doi.org/10.1016/j.matdes.2014.07.056 . .

TY  - CONF
AU  - Bobić, Ilija
AU  - Babić, Miroslav
AU  - Vencl, Aleksandar
AU  - Mitrović, Slobodan
AU  - Bobić, Biljana
PY  - 2013
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4336
AB  - ZA27 legura sa nedendritnom strukturom dobijena je tiksokasting postupkom. Čestični kompoziti sa osnovom od navedene legure dobijeni su kompokasting postupkom, odnosno infiltracijom 5 vol.% i 10 vol.% SiC čestica u poluočvrsli rastop legure. Uzorci tiksolivene ZA27 legure i kompozita bili su podvrgnuti procesu starenja na 80, 120 i 160°C (T5 režim). Strukturna ispitivanja matrične legure i kompozita i merenja promena tvrdoća tokom procesa starenja izvršena su u zavisnosti od temperature. Pokazano je da prisustvo čestica ojačivača utiče na ubrzanje procesa starenja, odnosno kompoziti dostižu maksimalne vrednosti tvrdoće za kraće vreme nego matrična legura. Sa povećanjem temperature starenja opadaju tvrdoće svih ispitivanih materijala.
C3  - Proceedings of the 13th International Conference on Tribology – SERBIATRIB '13
T1  - Veštačko starenje tiksolivene ZA27 legure i čestičnih ZA27/SiC kompozita
EP  - 413
SP  - 409
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4336
ER  - 

@conference{
author = "Bobić, Ilija and Babić, Miroslav and Vencl, Aleksandar and Mitrović, Slobodan and Bobić, Biljana",
year = "2013",
abstract = "ZA27 legura sa nedendritnom strukturom dobijena je tiksokasting postupkom. Čestični kompoziti sa osnovom od navedene legure dobijeni su kompokasting postupkom, odnosno infiltracijom 5 vol.% i 10 vol.% SiC čestica u poluočvrsli rastop legure. Uzorci tiksolivene ZA27 legure i kompozita bili su podvrgnuti procesu starenja na 80, 120 i 160°C (T5 režim). Strukturna ispitivanja matrične legure i kompozita i merenja promena tvrdoća tokom procesa starenja izvršena su u zavisnosti od temperature. Pokazano je da prisustvo čestica ojačivača utiče na ubrzanje procesa starenja, odnosno kompoziti dostižu maksimalne vrednosti tvrdoće za kraće vreme nego matrična legura. Sa povećanjem temperature starenja opadaju tvrdoće svih ispitivanih materijala.",
journal = "Proceedings of the 13th International Conference on Tribology – SERBIATRIB '13",
title = "Veštačko starenje tiksolivene ZA27 legure i čestičnih ZA27/SiC kompozita",
pages = "413-409",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4336"
}

Bobić, I., Babić, M., Vencl, A., Mitrović, S.,& Bobić, B.. (2013). Veštačko starenje tiksolivene ZA27 legure i čestičnih ZA27/SiC kompozita. in Proceedings of the 13th International Conference on Tribology – SERBIATRIB '13, 409-413.
https://hdl.handle.net/21.15107/rcub_machinery_4336

Bobić I, Babić M, Vencl A, Mitrović S, Bobić B. Veštačko starenje tiksolivene ZA27 legure i čestičnih ZA27/SiC kompozita. in Proceedings of the 13th International Conference on Tribology – SERBIATRIB '13. 2013;:409-413.
https://hdl.handle.net/21.15107/rcub_machinery_4336 .

Bobić, Ilija, Babić, Miroslav, Vencl, Aleksandar, Mitrović, Slobodan, Bobić, Biljana, "Veštačko starenje tiksolivene ZA27 legure i čestičnih ZA27/SiC kompozita" in Proceedings of the 13th International Conference on Tribology – SERBIATRIB '13 (2013):409-413,
https://hdl.handle.net/21.15107/rcub_machinery_4336 .

TY  - JOUR
AU  - Bobić, Ilija
AU  - Babić, Miroslav
AU  - Vencl, Aleksandar
AU  - Bobić, Biljana
AU  - Mitrović, Slobodan
PY  - 2013
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1719
AB  - Thixocast ZA27 alloy and particulate ZA27/SiCp composites were subjected to artificial aging at 80, 120 and 160 degrees C (T5 regime). Composites with 5 and 10 vol.% SiC particles were produced via the compocasting method. The influence of the aging was investigated using different techniques. Differential scanning calorimetry was performed to reveal the presence of phases created in the thixocast ZA27 alloy and the composites. Microstructures and fracture behavior were examined by means of optical microscopy, scanning electron microscopy and X-ray diffraction. Aging processes in the matrix alloy and composites were followed using hardness measurements. A decrease in the hardness values was noticed with the increase in the aging temperature. At higher temperatures diffusion of zinc atoms from supersaturated phases in the matrix alloy was enhanced, which resulted in faster changes in the hardness. Aging processes in the composites were significantly accelerated compared to the matrix alloy, due to the presence of particulate reinforcements. The maximum in hardness was achieved for shorter time in the ZA27/SiCp composite with higher volume fraction of SiC particles.
PB  - Carl Hanser Verlag, Munich
T2  - International Journal of Materials Research
T1  - Artificial aging of thixocast ZA27 alloy and particulate ZA27/SiCp composites
EP  - 965
IS  - 10
SP  - 954
VL  - 104
DO  - 10.3139/146.110958
ER  - 

@article{
author = "Bobić, Ilija and Babić, Miroslav and Vencl, Aleksandar and Bobić, Biljana and Mitrović, Slobodan",
year = "2013",
abstract = "Thixocast ZA27 alloy and particulate ZA27/SiCp composites were subjected to artificial aging at 80, 120 and 160 degrees C (T5 regime). Composites with 5 and 10 vol.% SiC particles were produced via the compocasting method. The influence of the aging was investigated using different techniques. Differential scanning calorimetry was performed to reveal the presence of phases created in the thixocast ZA27 alloy and the composites. Microstructures and fracture behavior were examined by means of optical microscopy, scanning electron microscopy and X-ray diffraction. Aging processes in the matrix alloy and composites were followed using hardness measurements. A decrease in the hardness values was noticed with the increase in the aging temperature. At higher temperatures diffusion of zinc atoms from supersaturated phases in the matrix alloy was enhanced, which resulted in faster changes in the hardness. Aging processes in the composites were significantly accelerated compared to the matrix alloy, due to the presence of particulate reinforcements. The maximum in hardness was achieved for shorter time in the ZA27/SiCp composite with higher volume fraction of SiC particles.",
publisher = "Carl Hanser Verlag, Munich",
journal = "International Journal of Materials Research",
title = "Artificial aging of thixocast ZA27 alloy and particulate ZA27/SiCp composites",
pages = "965-954",
number = "10",
volume = "104",
doi = "10.3139/146.110958"
}

Bobić, I., Babić, M., Vencl, A., Bobić, B.,& Mitrović, S.. (2013). Artificial aging of thixocast ZA27 alloy and particulate ZA27/SiCp composites. in International Journal of Materials Research
Carl Hanser Verlag, Munich., 104(10), 954-965.
https://doi.org/10.3139/146.110958

Bobić I, Babić M, Vencl A, Bobić B, Mitrović S. Artificial aging of thixocast ZA27 alloy and particulate ZA27/SiCp composites. in International Journal of Materials Research. 2013;104(10):954-965.
doi:10.3139/146.110958 .

Bobić, Ilija, Babić, Miroslav, Vencl, Aleksandar, Bobić, Biljana, Mitrović, Slobodan, "Artificial aging of thixocast ZA27 alloy and particulate ZA27/SiCp composites" in International Journal of Materials Research, 104, no. 10 (2013):954-965,
https://doi.org/10.3139/146.110958 . .

TY  - JOUR
AU  - Bobić, Biljana
AU  - Mitrović, Slobodan
AU  - Babić, Miroslav
AU  - Vencl, Aleksandar
AU  - Bobić, Ilija
PY  - 2011
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1341
AB  - Corrosion behaviour of the as-cast and heat-treated ZA27 alloy was examined. The alloy was prepared by conventional melting and casting route and then thermally processed by applying T4 heat treatment regime (solutionizing at 370 °C for 3 hours followed by water quenching and natural aging). Corrosion rate of the as-cast and heat-treated ZA27 alloy was determined in 3.5 wt. % NaCl solution through immersion test using both weight loss method and polarization resistance measurements. It was shown that applied thermal treatment resulted in increased ductility of the heat-treated alloy and had a small beneficial effect on the corrosion resistance of ZA27 alloy.
PB  - Fakultet inženjerskih nauka, Kragujevac
T2  - Tribology in Industry
T1  - Corrosion behavior of the as-cast and heat-treated ZA27 alloy
EP  - 93
IS  - 2
SP  - 87
VL  - 33
UR  - https://hdl.handle.net/21.15107/rcub_machinery_1341
ER  - 

@article{
author = "Bobić, Biljana and Mitrović, Slobodan and Babić, Miroslav and Vencl, Aleksandar and Bobić, Ilija",
year = "2011",
abstract = "Corrosion behaviour of the as-cast and heat-treated ZA27 alloy was examined. The alloy was prepared by conventional melting and casting route and then thermally processed by applying T4 heat treatment regime (solutionizing at 370 °C for 3 hours followed by water quenching and natural aging). Corrosion rate of the as-cast and heat-treated ZA27 alloy was determined in 3.5 wt. % NaCl solution through immersion test using both weight loss method and polarization resistance measurements. It was shown that applied thermal treatment resulted in increased ductility of the heat-treated alloy and had a small beneficial effect on the corrosion resistance of ZA27 alloy.",
publisher = "Fakultet inženjerskih nauka, Kragujevac",
journal = "Tribology in Industry",
title = "Corrosion behavior of the as-cast and heat-treated ZA27 alloy",
pages = "93-87",
number = "2",
volume = "33",
url = "https://hdl.handle.net/21.15107/rcub_machinery_1341"
}

Bobić, B., Mitrović, S., Babić, M., Vencl, A.,& Bobić, I.. (2011). Corrosion behavior of the as-cast and heat-treated ZA27 alloy. in Tribology in Industry
Fakultet inženjerskih nauka, Kragujevac., 33(2), 87-93.
https://hdl.handle.net/21.15107/rcub_machinery_1341

Bobić B, Mitrović S, Babić M, Vencl A, Bobić I. Corrosion behavior of the as-cast and heat-treated ZA27 alloy. in Tribology in Industry. 2011;33(2):87-93.
https://hdl.handle.net/21.15107/rcub_machinery_1341 .

Bobić, Biljana, Mitrović, Slobodan, Babić, Miroslav, Vencl, Aleksandar, Bobić, Ilija, "Corrosion behavior of the as-cast and heat-treated ZA27 alloy" in Tribology in Industry, 33, no. 2 (2011):87-93,
https://hdl.handle.net/21.15107/rcub_machinery_1341 .

TY  - JOUR
AU  - Vencl, Aleksandar
AU  - Bobić, Ilija
AU  - Arostegui, Saioa
AU  - Bobić, Biljana
AU  - Marinković, Aleksandar
AU  - Babić, Miroslav
PY  - 2010
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1062
AB  - Particulate composites with A356 aluminium alloy as a matrix were produced by compocasting process using ceramic particles (Al2O3, SiC) and graphite particles. The matrix alloy and the composites were thermally processed applying the T6 heat treatment regime. Structural, mechanical and tribological properties of heat treated matrix alloy and the composites were examined and compared. It was shown that heat treatment affected microstructure of the composites matrix. The fracture of the composites matrix was ductile, while transition from ductile to brittle fracture occurred in the zone of reinforcing particles. The values of elasticity modulus of all the composites were higher in relation to the matrix alloy. It was also established that wear resistance and coefficient of friction were better at the SiC particulate composites than at the Al2O3 particulate composite, while the addition of graphite particles improved tribological properties further.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Alloys and Compounds
T1  - Structural, mechanical and tribological properties of A356 aluminium alloy reinforced with Al2O3, SiC and SiC plus graphite particles
EP  - 639
IS  - 2
SP  - 631
VL  - 506
DO  - 10.1016/j.jallcom.2010.07.028
ER  - 

@article{
author = "Vencl, Aleksandar and Bobić, Ilija and Arostegui, Saioa and Bobić, Biljana and Marinković, Aleksandar and Babić, Miroslav",
year = "2010",
abstract = "Particulate composites with A356 aluminium alloy as a matrix were produced by compocasting process using ceramic particles (Al2O3, SiC) and graphite particles. The matrix alloy and the composites were thermally processed applying the T6 heat treatment regime. Structural, mechanical and tribological properties of heat treated matrix alloy and the composites were examined and compared. It was shown that heat treatment affected microstructure of the composites matrix. The fracture of the composites matrix was ductile, while transition from ductile to brittle fracture occurred in the zone of reinforcing particles. The values of elasticity modulus of all the composites were higher in relation to the matrix alloy. It was also established that wear resistance and coefficient of friction were better at the SiC particulate composites than at the Al2O3 particulate composite, while the addition of graphite particles improved tribological properties further.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Alloys and Compounds",
title = "Structural, mechanical and tribological properties of A356 aluminium alloy reinforced with Al2O3, SiC and SiC plus graphite particles",
pages = "639-631",
number = "2",
volume = "506",
doi = "10.1016/j.jallcom.2010.07.028"
}

Vencl, A., Bobić, I., Arostegui, S., Bobić, B., Marinković, A.,& Babić, M.. (2010). Structural, mechanical and tribological properties of A356 aluminium alloy reinforced with Al2O3, SiC and SiC plus graphite particles. in Journal of Alloys and Compounds
Elsevier Science Sa, Lausanne., 506(2), 631-639.
https://doi.org/10.1016/j.jallcom.2010.07.028

Vencl A, Bobić I, Arostegui S, Bobić B, Marinković A, Babić M. Structural, mechanical and tribological properties of A356 aluminium alloy reinforced with Al2O3, SiC and SiC plus graphite particles. in Journal of Alloys and Compounds. 2010;506(2):631-639.
doi:10.1016/j.jallcom.2010.07.028 .

Vencl, Aleksandar, Bobić, Ilija, Arostegui, Saioa, Bobić, Biljana, Marinković, Aleksandar, Babić, Miroslav, "Structural, mechanical and tribological properties of A356 aluminium alloy reinforced with Al2O3, SiC and SiC plus graphite particles" in Journal of Alloys and Compounds, 506, no. 2 (2010):631-639,
https://doi.org/10.1016/j.jallcom.2010.07.028 . .