Effect of Cu particles as an interfacial media addition on the friction coefficient and interface microstructure during (steel/steel) pin on disc tribotest
作者： A.C.P. Rodrigues , T. Yonamine , E. Albertin , A. Sinatora , C.R.F. Azevedo
DOI: 10.1016/J.WEAR.2015.02.006
关键词:
摘要: Abstract Copper fibres are used in the composition of car and truck brake pads they play a major role on braking efficiency. The purpose this study is to understand behaviour Cu particles interfacial contact area steel against sliding surfaces. In sense, pin disc tests were carried out with addition particulate media investigate evolution friction coefficient testing time. copper powders (400 μm, 20 μm 50 nm), magnetite (50 nm) graphite powder (25 μm) was investigated. results compared condition without any addition. Scanning electron (SEM) focused ion beam (FIB) microscopies characterize tribosurfaces pins debris discs identify microstructure tribofilm. tribotests showed that increased when other conditions. highest values for obtained finer particle granulometry. By contrast, additions decreased addition, lowest been
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