Abstract

The results of studying the effect of temperature and pressure on the formation of secondary structures in the surface layers of carbon and chromium steels are generalized for various methods of dynamic contact loading. The effects of the carbon content and the initial structure of a steel on the structures and phase compositions of the zones of rapid high-temperature tempering and secondary quenching are analyzed. The evolution of the structural states and the depths of these zones with the sequential intensification of grinding and wear conditions for machine parts is experimentally studied. The whole range of structural changes that occur during a simultaneous pulsed action of high temperature and pressure or during a solely pulsed temperature action is produced in model samples.

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