The main aspects of the relationship between fatigue and machine part
wear are considered and the relevant problem is formulated. The result
s of an investigation of the influence of the fatigue process on machi
ne part wear are given for diesel engine piston rings. As the results
show, the solution of the problem could open up new prospects in the d
evelopment of the theory of machine part cyclic wear and the details o
f the technology of cyclic straining treatments for increasing fatigue
wear resistance.