【摘要】 测定了经不同规范热处理后ＣｒＷＭｎ钢组织和性能。结果表明，与常规热处理、冷处理相比较，深冷处理使残余奥氏体量减少，硬度增加，耐磨性提高．但耐磨性并不始终随硬度增加而提高，只有硬度与韧性较好地匹配，才能得到较高的耐磨性．更多还原

【Abstract】 The microstructurc and proporty were determined subjected to heattreatment in CrWMn steel. The results show that the retained austenite and quantity of wear are less, hardness is gigher by cryosenic than by conventional and subzero treatment. Hish wear resistance occurs as a compromise between hardness and toughness.更多还原