铬钼系耐磨铸钢淬火开裂倾向的研究  

Study on Quenched Cracking Tendency of Cr-Mo System Abrasive-resisting Cast Steel

作　　者：马乃恒 范向东 

机构地区：[1]船舶总公司第十二研究所

出　　处：《热加工工艺》1996年第5期15-17,共3页Hot Working Technology

摘　　要：分析了中、高碳铬钼系耐磨铸钢在淬火过程中的裂纹形成倾向，讨论了试样壁厚和淬火温度对试样形成裂纹的影响。指出，中碳系材料采用０．６％聚乙稀醇溶液在９２０℃淬火不会形成裂纹，而高碳系材料开裂倾向很大。最后，分别提出了两种材料的合理热处理工艺。A tendency of cracking formed has been discussed in Cr-Mo system abrasive-resisting steel. Andthe relation of sample thinkness and quenched temperature with cracking tendency also is analysed. It is shown that920℃ quenched medium carbon system sample does not form any cracking but high carbon sample has large crackingtendency with 0. 6wt℃% polyvinyl alcohol quenching liquid. Lastly, the reasonable treatment processes are pointed out.

关 键 词：铸钢 耐磨铸钢 淬火 开裂 热处理 

分 类 号：TG163[金属学及工艺—热处理]