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本文通过动载磨料磨损实验和硬度测量，利用SEM和TEM观察磨损表面形貌和微观组织，研究了超高锰钢的冲击磨料磨损行为．研究结果表明，在0．5和1．0J冲击功下，Mn17（SR）和Mn20（SR）的耐磨性高于Mn12（SR）在中、低磨损冲击功下，变质使Mn17的耐磨性有所提高，但在高冲击功下，变质反而使其耐磨性有所降低．磨损表层的变形组织主要由高密度位错和变形带组成；加工硬化和变质处理的适当配合使超高锰钢在中、低冲击功下具有良好的耐磨性
In this paper, wear and abrasion test and hardness measurement were carried out by dynamic abrasives, the wear surface morphology and microstructure were observed by SEM and TEM, and the impact abrasion behavior of ultra-high manganese steel was studied. The results show that the wear resistance of Mn17 (SR) and Mn20 (SR) is higher than that of Mn12 (SR) under impact power of 0.5 and 1.0 J, Sex has improved, but under the impact of high impact, metamorphism instead make it less wear-resistant. Deformation of the wear surface of the organization mainly by the high-density dislocation and deformation zone composition; work hardening and deterioration of the appropriate combination of ultra-high manganese steel in the low impact energy has good wear resistance