The study analyzes physicomechanical and thermophysical properties of hard alloys with due regard to their chemical composition; reveals the dependence of both the cutting properties and regularities of carbide tool wear from cutting conditions and thermophysical properties of tool material; describes a significant impact of not only mechanical but, first and foremost, thermophysical properties of instrumental and structural materials on tool wear; and identifies ways to reduce the wear rate of a cutting tool.

The information about the applications and features of mechanical treatment of corrosion resistant steels which refer to the ferritic-austenitic class is provided in the paper. It is shown that increasing of alloying elements’ content, in comparison to austenitic steels, improves the strength characteristics while improving corrosion resistance and resulting in a dramatic reduction in machinability. The paper defines the directions of efficiency increase for machining of duplex steels by determining the processing conditions appropriate to reduce the tool wear intensity.