Kinetics of Microstructure and Selective Mechanism of Fracture of Metal Surface Layer under Friction

摘要

The kinetics of the evolution of the microstructure of a nickel surface layer under friction is studied. It is found that the feeding of the surface layer with elastic energy occurs. This process leads to the formation of slip bands, lamellar structures, and micropores resulting in the progressive dispersion of the surface layer, which, together with substantial brittleness, causes the selective mechanism of surface layer fracture to develop locally in time.