Enhancement Wear Properties of HSS-M2 Tool Steel with WC Deposited by SMAW Process

In this study, the effect of cladded tungsten carbide layer upon HSS-M2 tool steel on microstructure, hardness, and wear behavior has been studied in two cases without using the middle layer and with using the middle layer of nickel. Tungsten Carbide cladded on HSS-M2 tool steel by Arc Weld (SMAW). The ASTM-G65 wear test was used to determine its application in mineral industry. The results showed that the formation of M6C (tungsten-rich carbide) on deposited layer, as well as tungsten carbide with the formation of a composite layer on the base metal surface, increased the wear resistance up to 60% and the hardness up to 150% compared to the uncoated sample. Comparing the results in terms of the use or non-use of the middle nickel layer indicates the improvement of wear behavior without using middle nickel layers