Direct observation of dry wear
1983; Elsevier BV; Volume: 89; Issue: 2 Linguagem: Inglês
10.1016/0043-1648(83)90242-9
ISSN1873-2577
Autores Tópico(s)Lubricants and Their Additives
ResumoA wear machine was constructed in which the wear behaviour of metal pins against glass could be viewed directly. By wearing pins of copper, brass, steel, nickel and aluminium against glass and steel, the generality of the observed wear behaviour was established and was seen to be very different from the asperity interactions postulated in many models of dry wear. In all cases the wear process changed from the leading edge to the trailing edge of the pin owing to the accumulation and abrasive action of wear debris. The debris-damaged area was by far the larger fraction of the wearing surface and was the whole surface when the pin was run repetitively in the same track. However, the relatively small region at the front of the pin that was not influenced by debris carried the major fraction of the applied load.
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