Studies on the Effect of Alloying Element in Iron Base Hardfacing Alloy

摘要

Hardfacing, a surface modification technique, is used to rebuild the surface of a workpiece. The economic success of the process depends on selective application of hardfacing material and its chemical composition for a particular application. In this context, two hardfacing electrodes having different chemical compositions have been selected with addition of alloying elements and their hardness and microhardness responses were compared with that of mild steel. The emphasis has been to realize the effect of microstructure and chemical composition on the hardness and microhardness response of the hardfacing material with respect to mild steel. It has been observed that the hardness of hardfacing alloys is varied with addition of alloying elements compared to that without addition of alloying elements.