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

摘要

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