SEDL / STP / STP474-EB / STP26883S

Analogy Between Erosion Damage and Pitting of Machine Component Surfaces

Kozirev, SP
USSR, Moscow Oblast, Czechow Rajon, Novy Bit., Moscow,

Pages: 13    Published: Jan 1970

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Abstract

Contact damage to the surfaces of gear teeth, of balls in antifriction bearings, of cams in distributing devices, etc. occurs, as a rule, only in the presence of a liquid libricant. The breakout by pitting in this case is similar in character to the surface damage by erosion. The main feature common to these two processes is the fatigue nature of surface damage involving a liquid. These processes have identical kinetics of development with time. In either case the damage rate is affected strongly by unit loading. Both pitting and erosion also depend heavily on viscosity and temperature of the liquid.