The Effect of Additives of Chromium Steels and Nikel Boride on the Structure and Properties of the Powder Composites on the Basis of Iron–High-Carbon Ferrochrome FKh800 Materials

Abstract

Production conditions, physical, mechanical and tribotechnical properties of iron–high-carbon ferrochrome FKh800 materials, alloyed with the additives of chromium steels Kh13M2, Kh17N2, and Ni₃B, are investigated. It is established that the sintering temperature of 1250 °C and isothermal holding for 60 min are the optimal technological parameters for producing such materials. It is revealed that adding steels Kh13M2 and Kh17N2 into the charge composition changes the material structure from two-phase into multi-phase and (with a certain increase in the hardness and decrease in the bending strength) increases their wear resistance at dry friction against the counterface from steel ShKh15, by a factor of 2–2.5.