Tribological Characteristics of Stellite Hard faced Layer on Mild Steel

Hardfacing is the oldest method of surface engineering for obtaining diverse characteristics and extending the life of materials. Even with typical use, all metal parts will corrode over time. As a result, they may lose their functioning, necessitating the purchase of a new part. This may occur more commonly in particular industrial applications, such as mining or agriculture. Hardfacing is a great solution for any metal element that is likely to wear over time. Hardfacing is typically done to worn rebuilt gear, but it can also be applied to new equipment to make it more wear-resistant. Hardfacing parts from older equipment can save you anywhere from 25 to 75 percent on replacement costs. Hardfacing can help extend the life of parts on latest equipment by up to 300 percent. Here chosen hardfacing technique as Tungsten Inert Gas Welding (TIGW) process to deposit stellite electrodes on base metal (i.e mild steel). The works is focus about deposit the hardfacing layers on mild steel specimens and perform comparative study of stellite -1 and stellite-12 hardfaced layers applied on mild steel specimens. The Objective of the project is to obtain better wear characteristics, hardness and better micro- structural properties of material.