热处理工艺对3Cr2W8V模具钢显微组织和性能的影响  

Effects of Heat Treatment Process on Microstructure and Properties of 3Cr2W8V Die Steel

作　　者：魏光清[1] 

机构地区：[1]重庆三峡职业学院,重庆404155

出　　处：《热加工工艺》2016年第12期164-166,169,共4页Hot Working Technology

基　　金：重庆市教委课题资助项目(113225)

摘　　要：研究了热处理工艺对3Cr2W8V模具钢显微组织和性能的影响。结果表明,正火+球化退火的3Cr2W8V模具钢组织为球状珠光体,1050℃淬火的模具钢组织为1级隐针马氏体,640℃回火的碳化物分布均匀,硬度较高,断裂韧性高。Effects of heat treatment process on microstructure and properties of 3Cr2W8V die steel were researched. The results show that the microstructure of 3Cr2W8V die steel treated with normalizing and spheroidizing annealing is globular pearlite, the microstructure of die steel quenching at 1050 ℃ is 1 level oryptocrystalline martensite, the carbides distribute uniformly, the hardness is high, and the fracture toughness is high while tempering at 640 ℃.

关 键 词：模具钢 显微组织 球状珠光体 

分 类 号：TG161[金属学及工艺—热处理]