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研究了铸造复合中锰奥氏体钢在冲击磨料磨损条件下的耐磨性能。结果表明：铸造复合中锰奥氏体钢的耐磨性是高锰钢的５．４１倍。复合层中碳化物结构为（Ｃｒ，Ｆｅ）２３Ｃ６和（Ｃｒ，Ｆｅ）７Ｃ３，呈网状分布，具有抑制磨粒压入基体和阻碍磨粒对基体的切削作用。亚表层中介稳奥氏体发生应变诱发马氏体相变，转变能来源于外界冲击功，其值为４３４Ｊ·ｍｏｌ－１。
The wear resistance of cast composite Mn-austenitic steels under impact abrasion was studied. The results show that the wear resistance of the cast composite medium manganese austenitic steel is 5.41 times higher than that of high manganese steel. Carbides in the composite layer structure (Cr, Fe) 23C6 and (Cr, Fe) 7C3, was reticular distribution, inhibit the abrasive particles into the substrate and hinder the cutting effect of abrasive on the substrate. Sub-surface intermediate austenite stable strain-induced martensitic transformation, the transformation energy can be derived from the impact energy, the value of 434J · mol-1.