Study of Wear Resistance and Impact Abrasive Wear of Super-high Manganese Steel

The wear resistance and impact abrasive wear behaviors of super-high manganese steel were investigated through dynamic impact abrasion test and hardness measurement of the abrasion surface, and the worn surface morphology and microstructure of abrasion subsurface was observed by SEM and TEM. The results show that the wear resistance of the super-high manganese steel with the lower carbon content is similar to as that of ZGMn13, but the wear resistance of the steel with higher carbon content is higher than that of ZGMn13 when the impact energies is 0. 5 and. 1.0 J. However, when impact energy reachs up to 2. 0 J, the wear resistance of super-high manganese steel is 1.21 times than that of ZGMn13, and the hardness of abrasion surface is higher than that of ZGMn13 as well. Deformed microstructure of the worn subsurface mainly consists of high density dislocation and deformation bands, and the bands intercross and cut mutually. Based on the practical operating condition, the appropriate matching between work hardening and impact toughness has good wear resistance for super-high manganese steel.