The main objective of this project work was to asses grinding wear behavior of austempered ductile iron balls. In this project, ductile iron balls were austenitised at 900 c and subjected to two step austempering heat treatment process. In the two step austempering process, the first step temperatures were 300 C for 60 minutes and then up quenched to higher temperature of 400 C for 60 min. Wear studies were carried out in dry and wet grinding conditions, in varying PH values from 7 to 10 and compared these results with En-31 forged steel balls. Same balls were used to grind the iron ore and...