TY  - JOUR
AU  - Assenova, Emilia
AU  - Vencl, Aleksandar
PY  - 2022
UR  - https://www.tribomat.net/archive/2022/2022-01/TM-2022-01-05.pdf
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4285
AB  - The review summarises basic tribological concepts for the stability, sustainability and life of the contact systems, highlighting the idea that tribological processes are most easily manipulated through the contact and the third body. If the original contact pair does not possess a specially inserted intermediate layer between the two interacting bodies, a secondary protective film forms, self-organized in the course of the friction processes themselves to keep the sustainability of the system. The ambition of tribology is to control friction and wear of the contact: either to find the optimal material to be placed in contact, or to predict events and phenomena stimulating the emergence of its own protective layer. A short overview is done of the ways for obtaining very low friction and wear by applying the principles of self-organization and green tribology, such as the selective transfer of material between the contact surfaces and the superlubricity phenomena.
PB  - Balkan Scientific Centre
T2  - Tribology and Materials
T1  - Tribology and self-organization in reducing friction: A brief review
EP  - 41
IS  - 1
SP  - 35
VL  - 1
DO  - 10.46793/tribomat.2022.005
ER  - 

@article{
author = "Assenova, Emilia and Vencl, Aleksandar",
year = "2022",
abstract = "The review summarises basic tribological concepts for the stability, sustainability and life of the contact systems, highlighting the idea that tribological processes are most easily manipulated through the contact and the third body. If the original contact pair does not possess a specially inserted intermediate layer between the two interacting bodies, a secondary protective film forms, self-organized in the course of the friction processes themselves to keep the sustainability of the system. The ambition of tribology is to control friction and wear of the contact: either to find the optimal material to be placed in contact, or to predict events and phenomena stimulating the emergence of its own protective layer. A short overview is done of the ways for obtaining very low friction and wear by applying the principles of self-organization and green tribology, such as the selective transfer of material between the contact surfaces and the superlubricity phenomena.",
publisher = "Balkan Scientific Centre",
journal = "Tribology and Materials",
title = "Tribology and self-organization in reducing friction: A brief review",
pages = "41-35",
number = "1",
volume = "1",
doi = "10.46793/tribomat.2022.005"
}

Assenova, E.,& Vencl, A.. (2022). Tribology and self-organization in reducing friction: A brief review. in Tribology and Materials
Balkan Scientific Centre., 1(1), 35-41.
https://doi.org/10.46793/tribomat.2022.005

Assenova E, Vencl A. Tribology and self-organization in reducing friction: A brief review. in Tribology and Materials. 2022;1(1):35-41.
doi:10.46793/tribomat.2022.005 .

Assenova, Emilia, Vencl, Aleksandar, "Tribology and self-organization in reducing friction: A brief review" in Tribology and Materials, 1, no. 1 (2022):35-41,
https://doi.org/10.46793/tribomat.2022.005 . .

TY  - CONF
AU  - Kandeva, Mara
AU  - Kalitchin, Zhecho
AU  - Zadorozhnaya, Elena
AU  - Vencl, Aleksandar
PY  - 2021
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4350
AB  - The paper exposes experimental results of the performance characteristics (coefficient of friction, contact temperature and wear) of the biolubricant based on rapeseed oil. The amount of commercial metal-containing additive in formulated lubricant was 1, 1.5, 3 and 5 %. All results were compared with the results obtained for the base rapeseed oil. They showed that the metal-containing additive in rapeseed oil reduced all characteristics (coefficient of friction, contact temperature and wear). It was also found that the dependence of all characteristics on the amount of additive is nonlinear and that there is an optimal value of it.
C3  - Proceedings of the 10th International Conference on Tribology – BALKANTRIB '20, Belgrade, Serbia, 20 – 22 May 2021
T1  - Influence of the amount of metal-containing additive on performance characteristics of lubricant based on rapeseed oil
EP  - 80
SP  - 79
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4350
ER  - 

@conference{
author = "Kandeva, Mara and Kalitchin, Zhecho and Zadorozhnaya, Elena and Vencl, Aleksandar",
year = "2021",
abstract = "The paper exposes experimental results of the performance characteristics (coefficient of friction, contact temperature and wear) of the biolubricant based on rapeseed oil. The amount of commercial metal-containing additive in formulated lubricant was 1, 1.5, 3 and 5 %. All results were compared with the results obtained for the base rapeseed oil. They showed that the metal-containing additive in rapeseed oil reduced all characteristics (coefficient of friction, contact temperature and wear). It was also found that the dependence of all characteristics on the amount of additive is nonlinear and that there is an optimal value of it.",
journal = "Proceedings of the 10th International Conference on Tribology – BALKANTRIB '20, Belgrade, Serbia, 20 – 22 May 2021",
title = "Influence of the amount of metal-containing additive on performance characteristics of lubricant based on rapeseed oil",
pages = "80-79",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4350"
}

Kandeva, M., Kalitchin, Z., Zadorozhnaya, E.,& Vencl, A.. (2021). Influence of the amount of metal-containing additive on performance characteristics of lubricant based on rapeseed oil. in Proceedings of the 10th International Conference on Tribology – BALKANTRIB '20, Belgrade, Serbia, 20 – 22 May 2021, 79-80.
https://hdl.handle.net/21.15107/rcub_machinery_4350

Kandeva M, Kalitchin Z, Zadorozhnaya E, Vencl A. Influence of the amount of metal-containing additive on performance characteristics of lubricant based on rapeseed oil. in Proceedings of the 10th International Conference on Tribology – BALKANTRIB '20, Belgrade, Serbia, 20 – 22 May 2021. 2021;:79-80.
https://hdl.handle.net/21.15107/rcub_machinery_4350 .

Kandeva, Mara, Kalitchin, Zhecho, Zadorozhnaya, Elena, Vencl, Aleksandar, "Influence of the amount of metal-containing additive on performance characteristics of lubricant based on rapeseed oil" in Proceedings of the 10th International Conference on Tribology – BALKANTRIB '20, Belgrade, Serbia, 20 – 22 May 2021 (2021):79-80,
https://hdl.handle.net/21.15107/rcub_machinery_4350 .

TY  - JOUR
AU  - Vencl, Aleksandar
AU  - Bobić, Ilija
AU  - Kandeva, Mara
AU  - Karastoyanov, Dimitar
PY  - 2015
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4312
AB  - This paper presents a short summary of the researches conducted in past few years concerning the metal matrix composites with different matrix material, different reinforcing/alloying elements, and obtained by different processing techniques. The results are classified into three groups according to the matrix material. In the first group are the results for microcomposites with AlSi7Mg matrix alloy obtained by compocasting method. These results cover the influences of amount and size of reinforcement (Al2O3), and the influence of type of reinforcement (Al2O3, SiC and SiC with graphite addition). In the second group are the results for nanocomposites with ZnAl25Si matrix alloy obtained by casting and compocasting method. These results cover the influences of silicon and strontium addition percentage, and the influences of strontium and/or Al2O3 nanoparticles addition. In the third group are the results for micro- and nanocomposites with Cu matrix obtained by powder metallurgy technology (preceded by mechanical alloying and/or internal oxidation). These results cover the influence of size of reinforcement (Al2O3) on the macroscale (composite properties), and the same influence on the nanoscale (only the matrix properties).
PB  - Sofia : Technical University
T2  - Tribological Journal BULTRIB
T1  - Tribology of metal matrix micro- and nanocomposites
EP  - 19
SP  - 10
VL  - 5
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4312
ER  - 

@article{
author = "Vencl, Aleksandar and Bobić, Ilija and Kandeva, Mara and Karastoyanov, Dimitar",
year = "2015",
abstract = "This paper presents a short summary of the researches conducted in past few years concerning the metal matrix composites with different matrix material, different reinforcing/alloying elements, and obtained by different processing techniques. The results are classified into three groups according to the matrix material. In the first group are the results for microcomposites with AlSi7Mg matrix alloy obtained by compocasting method. These results cover the influences of amount and size of reinforcement (Al2O3), and the influence of type of reinforcement (Al2O3, SiC and SiC with graphite addition). In the second group are the results for nanocomposites with ZnAl25Si matrix alloy obtained by casting and compocasting method. These results cover the influences of silicon and strontium addition percentage, and the influences of strontium and/or Al2O3 nanoparticles addition. In the third group are the results for micro- and nanocomposites with Cu matrix obtained by powder metallurgy technology (preceded by mechanical alloying and/or internal oxidation). These results cover the influence of size of reinforcement (Al2O3) on the macroscale (composite properties), and the same influence on the nanoscale (only the matrix properties).",
publisher = "Sofia : Technical University",
journal = "Tribological Journal BULTRIB",
title = "Tribology of metal matrix micro- and nanocomposites",
pages = "19-10",
volume = "5",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4312"
}

Vencl, A., Bobić, I., Kandeva, M.,& Karastoyanov, D.. (2015). Tribology of metal matrix micro- and nanocomposites. in Tribological Journal BULTRIB
Sofia : Technical University., 5, 10-19.
https://hdl.handle.net/21.15107/rcub_machinery_4312

Vencl A, Bobić I, Kandeva M, Karastoyanov D. Tribology of metal matrix micro- and nanocomposites. in Tribological Journal BULTRIB. 2015;5:10-19.
https://hdl.handle.net/21.15107/rcub_machinery_4312 .

Vencl, Aleksandar, Bobić, Ilija, Kandeva, Mara, Karastoyanov, Dimitar, "Tribology of metal matrix micro- and nanocomposites" in Tribological Journal BULTRIB, 5 (2015):10-19,
https://hdl.handle.net/21.15107/rcub_machinery_4312 .

TY  - JOUR
AU  - Vencl, Aleksandar
AU  - Jakimovska, Kristina
AU  - Ivanova, Boryan
AU  - Ružić, Jovana
AU  - Simeonov, Simeon
AU  - Kandeva, Mara
PY  - 2015
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4334
AB  - The aim of this study was to examine the static and kinetic friction of electroless Ni coatings of different surface roughening, in unlubricated contact with various counter-body materials. In particular, difference between static and kinetic coefficients of friction was analysed. The Ni coatings deposition was done with electroless plating process. Samples of electroless Ni coatings without and with SiC nanoparticles were heat treated at 300 °С for 6 hours. The microstructure of all samples was characterized by optical microscopy. Microhardness of samples and counter-bodies were also examined. The static and kinetic coefficients of friction was measured for each coating with initial and working surface roughness. Three typical materials used in industry were chosen as a counter-body material. The possibility of stick-slip occurrence was analysed through the static and kinetic coefficients of friction difference. Obtained results show that coatings hardness has strong influence on coefficient of friction, and that slip-stick phenomenon is unlikely to occur, since the differences between static and kinetic coefficients of friction are small. The SiC nanoparticles were added to Ni coating in order to improve the abrasive wear resistance. In the same time, presence of SiC nanoparticles slightly increases the coefficient of friction in unlubricated conditions. Obtained results showed that surface roughness does not have major influence on the coefficient of friction of tested coatings, and that coatings hardness is more influential. The SiC nanoparticles were added to standard electroless Ni coating, and their properties are investigated. Heat treatment was applied to achieve crystalline structure and to improve mechanical and tribological properties. Coefficient of friction testing was performed by simply and easy to operate test rig.
T2  - Journal of Achievements in Materials and Manufacturing Engineering
T1  - Static and kinetic friction of electroless Ni composite coatings
EP  - 21
IS  - 1
SP  - 13
VL  - 70
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4334
ER  - 

@article{
author = "Vencl, Aleksandar and Jakimovska, Kristina and Ivanova, Boryan and Ružić, Jovana and Simeonov, Simeon and Kandeva, Mara",
year = "2015",
abstract = "The aim of this study was to examine the static and kinetic friction of electroless Ni coatings of different surface roughening, in unlubricated contact with various counter-body materials. In particular, difference between static and kinetic coefficients of friction was analysed. The Ni coatings deposition was done with electroless plating process. Samples of electroless Ni coatings without and with SiC nanoparticles were heat treated at 300 °С for 6 hours. The microstructure of all samples was characterized by optical microscopy. Microhardness of samples and counter-bodies were also examined. The static and kinetic coefficients of friction was measured for each coating with initial and working surface roughness. Three typical materials used in industry were chosen as a counter-body material. The possibility of stick-slip occurrence was analysed through the static and kinetic coefficients of friction difference. Obtained results show that coatings hardness has strong influence on coefficient of friction, and that slip-stick phenomenon is unlikely to occur, since the differences between static and kinetic coefficients of friction are small. The SiC nanoparticles were added to Ni coating in order to improve the abrasive wear resistance. In the same time, presence of SiC nanoparticles slightly increases the coefficient of friction in unlubricated conditions. Obtained results showed that surface roughness does not have major influence on the coefficient of friction of tested coatings, and that coatings hardness is more influential. The SiC nanoparticles were added to standard electroless Ni coating, and their properties are investigated. Heat treatment was applied to achieve crystalline structure and to improve mechanical and tribological properties. Coefficient of friction testing was performed by simply and easy to operate test rig.",
journal = "Journal of Achievements in Materials and Manufacturing Engineering",
title = "Static and kinetic friction of electroless Ni composite coatings",
pages = "21-13",
number = "1",
volume = "70",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4334"
}

Vencl, A., Jakimovska, K., Ivanova, B., Ružić, J., Simeonov, S.,& Kandeva, M.. (2015). Static and kinetic friction of electroless Ni composite coatings. in Journal of Achievements in Materials and Manufacturing Engineering, 70(1), 13-21.
https://hdl.handle.net/21.15107/rcub_machinery_4334

Vencl A, Jakimovska K, Ivanova B, Ružić J, Simeonov S, Kandeva M. Static and kinetic friction of electroless Ni composite coatings. in Journal of Achievements in Materials and Manufacturing Engineering. 2015;70(1):13-21.
https://hdl.handle.net/21.15107/rcub_machinery_4334 .

Vencl, Aleksandar, Jakimovska, Kristina, Ivanova, Boryan, Ružić, Jovana, Simeonov, Simeon, Kandeva, Mara, "Static and kinetic friction of electroless Ni composite coatings" in Journal of Achievements in Materials and Manufacturing Engineering, 70, no. 1 (2015):13-21,
https://hdl.handle.net/21.15107/rcub_machinery_4334 .

TY  - CONF
AU  - Kandeva, Mara
AU  - Ivanova, Boryana
AU  - Karastoyanov, Dimitar
AU  - Vencl, Aleksandar
AU  - Assenova, Emilia
PY  - 2015
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4337
AB  - Wear of moulded spheroidal graphite cast iron alloyed by Sn is studied under conditions of boundary lubrication. The lubricant contains a metal-plating additive “Valena”. Five types of moulded spheroidal graphite cast iron specimens are studied with various wt. % Sn: without Sn (0 wt. % Sn), as well as with 0.018, 0.020, 0.032 and 0.051 wt. % Sn. Three types of lubricants are applied: lithium grease NLGI 3, motor oil SAE 15W-40 and transmission oil SAE 80W-90, in cases without and with 0.5 wt. % content of “Valena” metal-plating additive. The study is carried-out under conditions of constant load, sliding distance and velocity, using the pin-on-disk tribometer. Results of the influence of Sn content on the specimens wear are obtained for the various lubricant media.
C3  - Proceedings of the 14th International Conference on Tribology – SERBIATRIB '15
T1  - Influence of the metal-plating additive “Valena” on wear of the spheroidal graphite cast iron microalloyed by Sn
EP  - 242
SP  - 236
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4337
ER  - 

@conference{
author = "Kandeva, Mara and Ivanova, Boryana and Karastoyanov, Dimitar and Vencl, Aleksandar and Assenova, Emilia",
year = "2015",
abstract = "Wear of moulded spheroidal graphite cast iron alloyed by Sn is studied under conditions of boundary lubrication. The lubricant contains a metal-plating additive “Valena”. Five types of moulded spheroidal graphite cast iron specimens are studied with various wt. % Sn: without Sn (0 wt. % Sn), as well as with 0.018, 0.020, 0.032 and 0.051 wt. % Sn. Three types of lubricants are applied: lithium grease NLGI 3, motor oil SAE 15W-40 and transmission oil SAE 80W-90, in cases without and with 0.5 wt. % content of “Valena” metal-plating additive. The study is carried-out under conditions of constant load, sliding distance and velocity, using the pin-on-disk tribometer. Results of the influence of Sn content on the specimens wear are obtained for the various lubricant media.",
journal = "Proceedings of the 14th International Conference on Tribology – SERBIATRIB '15",
title = "Influence of the metal-plating additive “Valena” on wear of the spheroidal graphite cast iron microalloyed by Sn",
pages = "242-236",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4337"
}

Kandeva, M., Ivanova, B., Karastoyanov, D., Vencl, A.,& Assenova, E.. (2015). Influence of the metal-plating additive “Valena” on wear of the spheroidal graphite cast iron microalloyed by Sn. in Proceedings of the 14th International Conference on Tribology – SERBIATRIB '15, 236-242.
https://hdl.handle.net/21.15107/rcub_machinery_4337

Kandeva M, Ivanova B, Karastoyanov D, Vencl A, Assenova E. Influence of the metal-plating additive “Valena” on wear of the spheroidal graphite cast iron microalloyed by Sn. in Proceedings of the 14th International Conference on Tribology – SERBIATRIB '15. 2015;:236-242.
https://hdl.handle.net/21.15107/rcub_machinery_4337 .

Kandeva, Mara, Ivanova, Boryana, Karastoyanov, Dimitar, Vencl, Aleksandar, Assenova, Emilia, "Influence of the metal-plating additive “Valena” on wear of the spheroidal graphite cast iron microalloyed by Sn" in Proceedings of the 14th International Conference on Tribology – SERBIATRIB '15 (2015):236-242,
https://hdl.handle.net/21.15107/rcub_machinery_4337 .

TY  - JOUR
AU  - Kandeva, Mara
AU  - Vencl, Aleksandar
AU  - Assenova, Emilia
PY  - 2014
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4310
AB  - The repair-regeneration oil additives are new generation additives with important place in the application of lubricants. Added to oils or greases they assure partial regeneration of worn surfaces and, at the same time, decrease the moment of friction and the coefficient of friction in the contact pairs of machines. Most common are the organic oil-soluble additives. The paper exposes results of the study of the oil-soluble metal-plating composite additive "Valena". The influence of this additive on the friction parameters of ball bearing lubricated by motor oil М-63/14 (SAE 15W-40, API SF/CC) and transmission oil ТМ-5-18 (SAE 80W-90, API GL-5) has been investigated.
PB  - Sofia : Technical University
T2  - Tribological Journal BULTRIB
T1  - Influence of "Valena" metal-plating additive on the friction properties of ball bearings
EP  - 24
SP  - 18
VL  - 4
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4310
ER  - 

@article{
author = "Kandeva, Mara and Vencl, Aleksandar and Assenova, Emilia",
year = "2014",
abstract = "The repair-regeneration oil additives are new generation additives with important place in the application of lubricants. Added to oils or greases they assure partial regeneration of worn surfaces and, at the same time, decrease the moment of friction and the coefficient of friction in the contact pairs of machines. Most common are the organic oil-soluble additives. The paper exposes results of the study of the oil-soluble metal-plating composite additive "Valena". The influence of this additive on the friction parameters of ball bearing lubricated by motor oil М-63/14 (SAE 15W-40, API SF/CC) and transmission oil ТМ-5-18 (SAE 80W-90, API GL-5) has been investigated.",
publisher = "Sofia : Technical University",
journal = "Tribological Journal BULTRIB",
title = "Influence of "Valena" metal-plating additive on the friction properties of ball bearings",
pages = "24-18",
volume = "4",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4310"
}

Kandeva, M., Vencl, A.,& Assenova, E.. (2014). Influence of "Valena" metal-plating additive on the friction properties of ball bearings. in Tribological Journal BULTRIB
Sofia : Technical University., 4, 18-24.
https://hdl.handle.net/21.15107/rcub_machinery_4310

Kandeva M, Vencl A, Assenova E. Influence of "Valena" metal-plating additive on the friction properties of ball bearings. in Tribological Journal BULTRIB. 2014;4:18-24.
https://hdl.handle.net/21.15107/rcub_machinery_4310 .

Kandeva, Mara, Vencl, Aleksandar, Assenova, Emilia, "Influence of "Valena" metal-plating additive on the friction properties of ball bearings" in Tribological Journal BULTRIB, 4 (2014):18-24,
https://hdl.handle.net/21.15107/rcub_machinery_4310 .

TY  - CONF
AU  - Kandeva, Mara
AU  - Ivanova, Boryana
AU  - Assenova, Emilia
AU  - Vencl, Aleksandar
PY  - 2014
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4340
AB  - Tribology has always been at center of the efforts to increase reliability and quality, to reduce maintenance costs and to extend the service life of technical systems. The continuous improvement and advance technology of machines necessitate higher quality of lubricants and lubrication technologies, which influences equipment life and environment protection. This paper seeks to bind down tribology, reliability, quality and safety in the application of lubricants with additives, aiming wear prevention, based on specific examples with one of the newest oil-soluble metal-plating composite additive called “Valena”.
C3  - Proceedings of the International Conference on Materials, Tribology, Recycling – MATRIB 2014
T1  - Influence of additives and selective transfer on wear reduction in the lubricated contact
EP  - 206
SP  - 197
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4340
ER  - 

@conference{
author = "Kandeva, Mara and Ivanova, Boryana and Assenova, Emilia and Vencl, Aleksandar",
year = "2014",
abstract = "Tribology has always been at center of the efforts to increase reliability and quality, to reduce maintenance costs and to extend the service life of technical systems. The continuous improvement and advance technology of machines necessitate higher quality of lubricants and lubrication technologies, which influences equipment life and environment protection. This paper seeks to bind down tribology, reliability, quality and safety in the application of lubricants with additives, aiming wear prevention, based on specific examples with one of the newest oil-soluble metal-plating composite additive called “Valena”.",
journal = "Proceedings of the International Conference on Materials, Tribology, Recycling – MATRIB 2014",
title = "Influence of additives and selective transfer on wear reduction in the lubricated contact",
pages = "206-197",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4340"
}

Kandeva, M., Ivanova, B., Assenova, E.,& Vencl, A.. (2014). Influence of additives and selective transfer on wear reduction in the lubricated contact. in Proceedings of the International Conference on Materials, Tribology, Recycling – MATRIB 2014, 197-206.
https://hdl.handle.net/21.15107/rcub_machinery_4340

Kandeva M, Ivanova B, Assenova E, Vencl A. Influence of additives and selective transfer on wear reduction in the lubricated contact. in Proceedings of the International Conference on Materials, Tribology, Recycling – MATRIB 2014. 2014;:197-206.
https://hdl.handle.net/21.15107/rcub_machinery_4340 .

Kandeva, Mara, Ivanova, Boryana, Assenova, Emilia, Vencl, Aleksandar, "Influence of additives and selective transfer on wear reduction in the lubricated contact" in Proceedings of the International Conference on Materials, Tribology, Recycling – MATRIB 2014 (2014):197-206,
https://hdl.handle.net/21.15107/rcub_machinery_4340 .

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 .