A STUDY ON HARDNESS OF CARBURISED AND NON-CARBURISED ERODED DUCTILE IRON

In present day materials, surface properties needs to be changed, keeping the properties of base material as same. Especially, sometimes hardness is of utmost importance and needs to be enhanced. This paper deals with carburized and non-carburized ductile iron samples for evaluation of hardness. Hardness of ductile iron samples are also evaluated after erosive wear, taking into consideration, the parameters like impact angle of erosion particles, pressure of particles and standoff distance of the nozzle during the wear test. It is observed that the tribological properties of material enhances with infusion of carbon atoms on surface or due to strain hardening caused by erosive wear.