Micropitting, a significant failure mode in gears, is a form of local fatigue cracking driven by cyclic plastic deformation arising from surface roughness. Oil additives have a marked effect on micropitting and hence on the useful life of lubricated components. In the present paper we investigate the proposition that the effect of oil additives on micropitting results from the way they influence the development of the surface roughness.
Volume Subject Area:
Engineered Surfaces
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