YXR3钢模具早期失效分析  

Analysis on Early Failure of YXR3 Steel Die

作　　者：王前进[1] 刘宁[1] 刘爱军[1] 叶德林 朱峰 施卫兵 

机构地区：[1]合肥工业大学材料学院,安徽合肥230009 [2]江苏森威精锻有限公司,江苏大丰224100

出　　处：《热处理》2015年第4期59-62,共4页Heat Treatment

摘　　要：采用金相检验、硬度测试和扫描电镜分析了YXR3钢模具早期失效的原因。结果表明,该模具显微组织不均匀,晶粒粗大,存在大块状碳化物和未溶碳化物,是导致YXR3钢模具失效的主要原因。针对上述原因,提出了相应的改进措施:采用低淬低回工艺,增加板条马氏体含量,提高模具韧性。The cause of early failure of YXR3 steel die was analyzed by metallographic examination, hardness test and SEM. The results show that the die failure is mainly attributed to uneven microstructure, coarse grain, massive carbides and undissolved carbide present in it. In view of the above, the corresponding improvement measures, i.e., quenching from lower temperature and low tempering, were put forward to increase the lath martensite amount thereby to improve toughness of the die.

关 键 词：YXR3钢 冷作模具 早期开裂 带状碳化物 晶粒 

分 类 号：TG115.2[金属学及工艺—物理冶金]