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Microstructural and tribological properties of A356 Al-Si alloy reinforced with Al2O3 particles
dc.creator | Vencl, Aleksandar | |
dc.creator | Bobić, Ilija | |
dc.creator | Jovanović, Milian T. | |
dc.creator | Babić, Miroslav | |
dc.creator | Mitović, Slobodan | |
dc.date.accessioned | 2022-09-19T16:11:16Z | |
dc.date.available | 2022-09-19T16:11:16Z | |
dc.date.issued | 2008 | |
dc.identifier.issn | 1023-8883 | |
dc.identifier.uri | https://machinery.mas.bg.ac.rs/handle/123456789/822 | |
dc.description.abstract | In the present study, the effect of the Al2O3 particles (average size of 12 mu m, 3 and 10 wt.%) reinforcement on the microstructure and tribological properties of Al-Si alloy (A356) was investigated. Composites were produced by applying compocasting process. Tribological properties of unreinforced alloy and composites were studied, using pin-on-disc tribometer, under dry sliding conditions at different specific loads and sliding speed of 1 m/s. Microhardness measurements, optical microscope and scanning electron microscope were used for microstructural characterization and investigation of worn surfaces and wear debris. During compocasting of A356 alloy, a transformation from a typical dendritic primary alpha phase to a non-dendritic rosette-like structure occurred. Composites exhibited better wear resistance compared with unreinforced alloy. Presence of 3 wt.% Al2O3 particles in the composite material affected the wear resistance only at specific loads up to 1 MPa. The wear rate of composite with 10 wt.% Al2O3 particles was nearly two order of the magnitude lower than the wear rate of the matrix alloy. Dominant wear mechanism for all materials was adhesion, with others mechanisms: oxidation, abrasion and delamination as minor ones. | en |
dc.publisher | Springer/Plenum Publishers, New York | |
dc.relation | TR–6303B financially supported by the Ministry of Science of the Republic of Serbia | |
dc.rights | restrictedAccess | |
dc.source | Tribology Letters | |
dc.subject | Wear | en |
dc.subject | Friction | en |
dc.subject | Dry sliding | en |
dc.subject | Compocasting | en |
dc.subject | Al-Si alloy | en |
dc.subject | Al2O3 particles | en |
dc.title | Microstructural and tribological properties of A356 Al-Si alloy reinforced with Al2O3 particles | en |
dc.type | article | |
dc.rights.license | ARR | |
dc.citation.epage | 170 | |
dc.citation.issue | 3 | |
dc.citation.other | 32(3): 159-170 | |
dc.citation.rank | M21 | |
dc.citation.spage | 159 | |
dc.citation.volume | 32 | |
dc.identifier.doi | 10.1007/s11249-008-9374-6 | |
dc.identifier.scopus | 2-s2.0-56749102781 | |
dc.identifier.wos | 000261038000003 | |
dc.type.version | publishedVersion |