硅铁稀土对Cr12MoV模具钢组织和性能的影响  

Effect of Rare Earth Content on Microstructure and Properties of Cr12MoV Die Steel

作　　者：马永青[1] 孙伟[1] 

机构地区：[1]潍坊工程职业学院,山东青州262500

出　　处：《铸造技术》2014年第7期1447-1449,共3页Foundry Technology

摘　　要：研究了硅铁稀土对Cr12MoV模具钢微观组织、表面硬度和冲击韧度的影响。结果表明:硅铁稀土的加入可以改善Cr12MoV模具钢的微观组织,细化晶粒,提高其表面硬度和冲击韧度。当硅铁稀土添加量为0.4%时,热处理Cr12MoV模具钢的表面硬度为71 HRC,冲击韧度为14.35 J/cm2。The effects of ferrosilicon rare-earth on microstructure, surface hardness, and impact toughness of Cr12MoV die steel were studied. The results show that the microstructure of Cr12MoV die steel is improved, and the surface hardness and impact toughness of the die steel increase after adding ferrosilicon rare-earth. When the content of rare-earth is 0.4%,the surface hardness of the Cr12MoV die steel is 71 HRC, while the impact toughness is 14.35 J/cm2.

关 键 词：模具钢 硅铁稀土 表面硬度 冲击韧度 

分 类 号：TG142.45[一般工业技术—材料科学与工程]