Study on the wear resistance and impact abrasive wear of modified high wear-resisting manganese steel

The wear resistance and impact abrasive wear behaviors of super-high manganese steel are investigated through dynamic impact abrasion test and hardness measurement of the abrasion surface.By employing SEM and TEM,the worn surface morphology and microstructure of abrasion subsurface are observed.The results show that after wear 60 min and under the low impact energy,the wear resistance of the modified high manganese steel with Hadfield steel is greatly improved.The hardness of wear surface is slowly increased with the extension of the time.However, under the high impact energy,the wear resistance of it is 1.5 times higher than that of ZGMn13 steel.The hardness of wear surface is increased to HB440 in short time.Typical TEM morphologies of deformation structure of super-high manganese steel are high density dislocation,deformation bands,microcrystal and noncrystal.Based on the practical operating condition,the appropriate matching between work hardening and impact ductility performs fine wear resistance.