摘要
采用725—730℃的低温淬火，使42CrMo钢形成少量的部分马氏体和铁素体的混合组织，增加二相的硬度差，从而提高其切削性能。
Use the method of low temperature hardening of 725 - 730 ℃, bring the mixed structure of partial martensite and ferrite on 42CrMo steel , increase the hardness diference of both phase , heighen accordinly its machinability.
出处
《热处理技术与装备》
2007年第2期42-43,共2页
Heat Treatment Technology and Equipment
关键词
低温淬火
马氏体
铁素体
切削性能
low temperature hardening
martensite
ferrite
machinability
