Enhancement of wear resistance of ductile iron surface alloyed by stellite 6

► This paper deals with the improvement of the wear resistance of ductile iron surface alloyed by stellite 6 hardfacing alloy. ► The microstructure of the surface alloyed layer consisted of carbides dispersed in a Co-based solid solution matrix with dendritic structure. ► The higher wear resistance of the coated sample than that of uncoated sample attributed to the hardness of the surface alloyed layer. ► The dominant mechanism of the wear in the coated and uncoated samples was delamination wear.