Cr12MoV模具断裂原因分析  

Crack Failure Analysis of Cr12MoV Die

作　　者：侯彩云[1] 宗铎[1] 王志忠[1] 孙鹏[1] 

机构地区：[1]中国兵器科学研究院宁波分院,浙江宁波315103

出　　处：《热加工工艺》2010年第20期198-200,共3页Hot Working Technology

摘　　要：采用化学成分分析、硬度测定、金相检验及综合分析等方法对Cr12MoV模具的断裂原因进行分析。结果表明:材料中共晶碳化物呈网状分布,同时存在锋利、尖角块状碳化物,二者共同作用导致模具断裂。The failure cause of Cr12MoV die was analyzed by chemical composition analysis,hardness measurement,metallography inspection and analysis.The results show that the eutectic carbides distribute in net-shaped structure and there are some sharp-edged block carbides existing in steel meanwhile.These carbides togetherlead to the crack of Cr12MoV die.

关 键 词：CR12MOV 共晶碳化物 块状碳化物 断裂 

分 类 号：TG157[金属学及工艺—热处理]