Wear Resisting Properties of Cast Irons Having Different Shapes of Graphite

The wear resisting properties of cast irons having different shapes of graphite have been studied on dry wearing without lubricant, by using Fukao-type dry wear tester. It was found that the specimens consisting of ferrite matrix are remarkably less wear resistive in comparison with that of pearlite matrix, and that the wearing amounts increase with the order of shapes of wormy flake, small nodular and eutectic graphite