Effect of the surface nanocrystallization on tribological behavior of the Cu based bimetallic materials (CuPbSn)

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dc.contributor.authorGencer G.M.
dc.contributor.authorYolcu C.
dc.contributor.authorKahraman F.
dc.contributor.authorSaklakoǧlu N.
dc.date.accessioned2024-07-22T08:08:30Z
dc.date.available2024-07-22T08:08:30Z
dc.date.issued2019
dc.description.abstractIn this study, ultrasonic impact treatment was used to improve the tribological behavior of copper-based bimetallic materials that are used in internal combustion engine bearings and bushes. Bimetallic materials were obtained by coating three different CuPbSn alloys by sintering on the material surfaces of carbon steel substrate. After the sintering process, bimetallic materials were treated by ultrasonic impact process. As a result of the metallographic examination, sintered layers have uniform structure along the cross-section of the bimetallic materials. In addition, it was determined that the porosity of sintered materials decreased after the ultrasonic impact treatment. Due to the grain refinement and work hardening, higher hardness was obtained in the fine-grained layer. The hardness of the ultrasonic impact treated samples always higher than the untreated material. Because of the high surface hardness, ultrasonic impact treated samples showed higher wear resistance. The highest wear resistance was detected in the samples with the highest Sn content. Because Sn and Cu combine to form Cu3Sn intermetallic phase in Cu-Pb alloys and Cu3Sn increases the strength of the Cu-Pb alloys. Thus, increasing the Sn content in the Cu-Pb alloy resulted in the wear resistance increase. Furthermore, the formation of the SnO2 intermetallic phase on the sample surface has a significant effect on the wear resistance increase by preventing adhesion. © 2019 IOP Publishing Ltd.
dc.identifier.DOI-ID10.1088/2053-1591/ab43b3
dc.identifier.issn20531591
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/14417
dc.language.isoEnglish
dc.publisherInstitute of Physics Publishing
dc.subjectBimetals
dc.subjectBinary alloys
dc.subjectCopper alloys
dc.subjectGrain refinement
dc.subjectHardness
dc.subjectIntermetallics
dc.subjectJournal bearings
dc.subjectSintering
dc.subjectStrain hardening
dc.subjectTernary alloys
dc.subjectTin
dc.subjectTribology
dc.subjectWear of materials
dc.subjectWear resistance
dc.subjectCarbon steel substrates
dc.subjectIntermetallic phase
dc.subjectMetallographic examination
dc.subjectResistance increase
dc.subjectSintered materials
dc.subjectSurface nanocrystallization
dc.subjectTribological behaviors
dc.subjectUltrasonic impact treatment
dc.subjectLead alloys
dc.titleEffect of the surface nanocrystallization on tribological behavior of the Cu based bimetallic materials (CuPbSn)
dc.typeArticle

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