Study on Wear Behaviour of Fe-Cr-C Hardfacing Deposits

Abstract

Wear is a major problem leading to the replacement of components and assemblies in engineering industries. For many years welding technology has supplied an effective means of protecting the surface of engineering components which would otherwise be scrapped. To protect parts against mineral wear, chromium-containing Fe-C surfacing alloys are in use for deposit welding. Besides the chemical composition, the properties of such coating alloys are influenced mainly by specific welding parameters. The welding conditions, in particular the cooling rate of the deposited material, have important influence on the microstructure of the coating, and therefore on the hardness and wear resistance.