摘要
研究了不同处理工艺对20Cr Mn Ti钢尺寸稳定性及硬度的影响,同时对微观组织的变化进行了分析。结果表明,渗碳+深冷+淬火+深冷+回火处理能够显著提高20Cr Mn Ti钢的尺寸稳定性,同时能够提高硬度。渗碳后的深冷处理对于尺寸稳定性的改善作用较大,深冷处理能够使部分残留奥氏体转变为马氏体,并在马氏体基体上析出超细碳化物颗粒。
Effect of cryogenic treatment with different heat treatment processes on the dimensional stability and hardness of 20 Cr Mn Ti steel was investigated,at the same time,the microstructure of the steel treated with different processes was analyzed. The results show that cryogenic treatment after carburization and quenching can improve the dimensional stability as well as hardness of 20 Cr Mn Ti steel. Cryogenic treatment after carburization is significant for the improvement in dimensional stability. Cryogenic treatment can impel the part retained austenite transforms to martensite and promotes the precipitation of ultra-fine carbides.
出处
《金属热处理》
CAS
CSCD
北大核心
2015年第10期104-107,共4页
Heat Treatment of Metals
基金
国家科技重大专项(2011ZX04002-031)
中国科学院新兴战略产业联盟(2012)
作者简介
作者简介：顾开选（1987-），男，助理研究员，博士，主要研究方向：金属材料深冷处理，联系电话：010-82543488，E-mail：gukaixuan@mail．ipc．ac．cn。
通讯作者：王俊杰，研究员，E-mail：wangjunjie@mail．ipc．ac．cn
