Research and analysis of processes occurring during abrasive wear of materials with heterogeneous cementitious structures

Abstract

The article considers the impact of hardness and the number of solid-phase inclusions, as well as the properties of steels with ferritic, austenitic and martensitic matrices with heterophase cementitious structures on wear resistance. It is demonstrated that to ensure high wear resistance and impact toughness, solid phase particles in the structure of a heterophase metal material must be isolated from each other by sections of a relatively viscous matrix. Such structures can be obtained on the surface of a part or tool by surfacing, chemical-thermal treatment, and other methods. The results of calculations of the hardness of steel with different content of the carbide phase in its structure and the specific strain energy absorbed by the cementitious layer from the relative content of carbides in the ferritic, austenitic and martensitic matrices are presented. The contribution of carbide particles to determining the level of wear resistance of a two-phase material with different amounts of them in steels with different matrices is evaluated.