大截面热作模具钢45Cr2NiMoVSi中残余奥氏体行为的研究  

STUDY ON BEHAVIOR OF RETAINED AUSTENITE IN HEAVY SECTION HOT WORKING DIE STEEL 45Cr2NiMoVSi

作　　者：宋武林[1] 罗慧倩[1] 杨群[1] 

机构地区：[1]华中理工大学,中船总公司722所

出　　处：《钢铁研究》1995年第2期24-29,共6页Research on Iron and Steel

摘　　要：研究了大截面热作模具钢４５Ｃｒ２ＮｉＭｏＶＳｉ中残余奥氏体（以下简称Ａｒ）的回火转变动力学、Ａｒ的热稳定性和机械稳定性、Ａｒ的分布形态以及Ａｒ对材料性能的影响。提出了热模钢回火新工艺的两种可能性。The present paper described investigations in the tempering transformation dynamics of the retained austenite in the heavy section hot working die steel 45Cr2NiMoVSi,its thermostability,mechanical stability,pattern of distribution and influence on the product properties,pointing out two possibilities for the new tempering processes for the hot working die steel.

关 键 词：残余奥氏体 稳定性 热作模具钢 模具钢 

分 类 号：TG142.45[一般工业技术—材料科学与工程]