Study of work-hardening behavior of high manganese steel during compression

Abstract High manganese steels are well used for their excellent hardening properties. In this study, we investigate the mechanical responses of high steel in a compressed condition. During compression deformation, twin crystal is first generated inside some grains with orientation advantage, and then all twinned. Selective twinning on leads to formation textural structures. When plastic deformation low, twins appear independently throughout grain. After true strain more than 0.5, as many small parallel short bars. Dislocation density does not increase significantly at beginning but increases rapidly while flow stress no longer increases. Simultaneously, increased dislocations hardness, maximum value 630 HV 0.6, during deformation.