The abrasive wear resistance of the martensitic group 2 and 3 hardfacing materials: The influence of abradent type

Abstract The present study evaluated the wear resistance properties of a series of martensitic group 2 and 3 materials and, in particular, the influence of the particular abradent medium. Essentially, increasing the carbon level, increased the wear resistance of the martensitic materials while the relative abrasion resistance values for the river sand resided below those of the silicon carbide. Certainly, the best iron-based wear-resistant material in a high-stress situation was one in which the microstructure consisted of low-alloy M 7 C 3 -type carbides in a lenticular martensite. It was evident that chromium additions were not beneficial to wear resistance where soft abradent mediums were used; such additions, however, improved wear resistance in situations where silicon carbide was the abradent.