Cr5型热作模具钢的C-曲线及退火新工艺  

C-curves and New Annealing Processes of Cr5-type Hot Work Die Steel

作　　者：刘宗昌[1] 计云萍[1] 

机构地区：[1]内蒙古科技大学材料与冶金学院,内蒙古包头014010

出　　处：《热处理技术与装备》2017年第6期1-6,共6页Heat Treatment Technology and Equipment

基　　金：国家自然科学基金(51261018)

摘　　要：研究Cr5型热作模具钢的C-曲线和热处理工艺具有重要应用价值。本文综合阐述了H13,W350等钢的动力学转变图(TTT,CCT),并介绍了这类钢的扩散退火、球化退火新工艺,阐述了相关的组织转变机理及组织形貌。It has important application value to study the C-curves and the heat treatment processes oI try- type hot work die steel. The kinetic transition curves （TIT and CCT） of H13 steel and W350 steel were reviewed in this paper. The new annealing processes such as diffusion annealing and spheroidizing annea- ling were introduced, and the microstructure, the morphology and the mechanism of structural transforma- tion were elaborated.

关 键 词：热作模具钢 H13钢 W350钢 动力学曲线 临界点 退火工艺 

分 类 号：TG142.1[一般工业技术—材料科学与工程] TG161[金属学及工艺—金属材料]