Wear Behavior of Composites Based on ZA-27 Alloy Reinforced by Al2O3 Particles Under Dry Sliding Condition
Apstrakt
In present study, the effect of Al2O3 particle reinforcement on the sliding behavior of ZA-27 alloy composites was investigated. The composites with 3, 5, and 10 wt% of Al2O3 particles were produced by the compocasting procedure. Tribological properties of unreinforced alloy and composite were studied, using block-on-disk tribometer under unlubricated sliding conditions at different specific loads and sliding speeds. The worn surfaces of samples were examined by the scanning electron microscopy (SEM). The test results revealed that those composite specimens exhibited significantly lower wear rate than the ZA-27 matrix alloy specimens in all combinations of applied loads and sliding speeds. The difference in the wear resistance of composite with respect to the matrix alloy, increased with the increase of the applied load/sliding speed and Al2O3 particle content. The highest degree of improvement of the ZA-27 alloy tribological behavior corresponded with change of the Al2O3 particles con...tent from 3 to 5 wt%. At low sliding speed, moderate lower wear rate of the composites over that of the matrix alloy was noticed. This has been attributed to micro cracking tendency of the composites. Significantly reduced wear rate, experienced by the composite over that of the matrix alloy at the higher sliding speeds and loads, could be explained due to enhanced compatibility of matrix alloy with dispersoid phase and greater thermal stability of the composite in view of the presence of the dispersoid. Level of wear rate of tested ZA-27/Al2O3 samples pointed to the process of mild wear, which was primarily controlled by the formation and destruction of mechanical mixed layers (MMLs).
Ključne reči:
ZA-27 alloy / Al2O3 particles / Composites / Tribological behaviorIzvor:
Tribology Letters, 2010, 38, 3, 337-346Finansiranje / projekti:
- Ministry of Science of the Republic of Serbia [TR-14005B]
DOI: 10.1007/s11249-010-9613-5
ISSN: 1023-8883
WoS: 000278474000016
Scopus: 2-s2.0-77953682736
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Babić, Miroslav AU - Mitrovic, Slobodan AU - Živić, Fatima AU - Bobić, Ilija PY - 2010 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4012 AB - In present study, the effect of Al2O3 particle reinforcement on the sliding behavior of ZA-27 alloy composites was investigated. The composites with 3, 5, and 10 wt% of Al2O3 particles were produced by the compocasting procedure. Tribological properties of unreinforced alloy and composite were studied, using block-on-disk tribometer under unlubricated sliding conditions at different specific loads and sliding speeds. The worn surfaces of samples were examined by the scanning electron microscopy (SEM). The test results revealed that those composite specimens exhibited significantly lower wear rate than the ZA-27 matrix alloy specimens in all combinations of applied loads and sliding speeds. The difference in the wear resistance of composite with respect to the matrix alloy, increased with the increase of the applied load/sliding speed and Al2O3 particle content. The highest degree of improvement of the ZA-27 alloy tribological behavior corresponded with change of the Al2O3 particles content from 3 to 5 wt%. At low sliding speed, moderate lower wear rate of the composites over that of the matrix alloy was noticed. This has been attributed to micro cracking tendency of the composites. Significantly reduced wear rate, experienced by the composite over that of the matrix alloy at the higher sliding speeds and loads, could be explained due to enhanced compatibility of matrix alloy with dispersoid phase and greater thermal stability of the composite in view of the presence of the dispersoid. Level of wear rate of tested ZA-27/Al2O3 samples pointed to the process of mild wear, which was primarily controlled by the formation and destruction of mechanical mixed layers (MMLs). T2 - Tribology Letters T1 - Wear Behavior of Composites Based on ZA-27 Alloy Reinforced by Al2O3 Particles Under Dry Sliding Condition VL - 38 IS - 3 SP - 337 EP - 346 DO - 10.1007/s11249-010-9613-5 ER -
@article{ author = "Babić, Miroslav and Mitrovic, Slobodan and Živić, Fatima and Bobić, Ilija", year = "2010", abstract = "In present study, the effect of Al2O3 particle reinforcement on the sliding behavior of ZA-27 alloy composites was investigated. The composites with 3, 5, and 10 wt% of Al2O3 particles were produced by the compocasting procedure. Tribological properties of unreinforced alloy and composite were studied, using block-on-disk tribometer under unlubricated sliding conditions at different specific loads and sliding speeds. The worn surfaces of samples were examined by the scanning electron microscopy (SEM). The test results revealed that those composite specimens exhibited significantly lower wear rate than the ZA-27 matrix alloy specimens in all combinations of applied loads and sliding speeds. The difference in the wear resistance of composite with respect to the matrix alloy, increased with the increase of the applied load/sliding speed and Al2O3 particle content. The highest degree of improvement of the ZA-27 alloy tribological behavior corresponded with change of the Al2O3 particles content from 3 to 5 wt%. At low sliding speed, moderate lower wear rate of the composites over that of the matrix alloy was noticed. This has been attributed to micro cracking tendency of the composites. Significantly reduced wear rate, experienced by the composite over that of the matrix alloy at the higher sliding speeds and loads, could be explained due to enhanced compatibility of matrix alloy with dispersoid phase and greater thermal stability of the composite in view of the presence of the dispersoid. Level of wear rate of tested ZA-27/Al2O3 samples pointed to the process of mild wear, which was primarily controlled by the formation and destruction of mechanical mixed layers (MMLs).", journal = "Tribology Letters", title = "Wear Behavior of Composites Based on ZA-27 Alloy Reinforced by Al2O3 Particles Under Dry Sliding Condition", volume = "38", number = "3", pages = "337-346", doi = "10.1007/s11249-010-9613-5" }
Babić, M., Mitrovic, S., Živić, F.,& Bobić, I.. (2010). Wear Behavior of Composites Based on ZA-27 Alloy Reinforced by Al2O3 Particles Under Dry Sliding Condition. in Tribology Letters, 38(3), 337-346. https://doi.org/10.1007/s11249-010-9613-5
Babić M, Mitrovic S, Živić F, Bobić I. Wear Behavior of Composites Based on ZA-27 Alloy Reinforced by Al2O3 Particles Under Dry Sliding Condition. in Tribology Letters. 2010;38(3):337-346. doi:10.1007/s11249-010-9613-5 .
Babić, Miroslav, Mitrovic, Slobodan, Živić, Fatima, Bobić, Ilija, "Wear Behavior of Composites Based on ZA-27 Alloy Reinforced by Al2O3 Particles Under Dry Sliding Condition" in Tribology Letters, 38, no. 3 (2010):337-346, https://doi.org/10.1007/s11249-010-9613-5 . .