摘要
研究了低碳耐蚀模具钢0Cr13NiN不同热处理状态下的显微组织与性能,并与预硬态耐蚀模具钢4Cr13的力学性能和耐点蚀性能进行了对比。结果表明,0Cr13NiN钢的退火组织主要为铁素体+碳化物。相比预硬态4Cr13钢,预硬态0Cr13NiN钢具有更好的耐点蚀性能与韧性。0Cr13NiN钢的预硬化热处理工艺推荐为:淬火温度980~1030℃,回火温度520~540℃,回火两次;其淬火组织为马氏体+未溶碳氮化物+少量残留奥氏体,回火组织为回火马氏体+一次碳氮化物+碳氮化物。
Microstructure and properties of low carbon corrosion⁃resistant die steel 0Cr13NiN under different heat treatment states were studied,and the mechanical properties and pitting resistance were compared with pre⁃hardened corrosion⁃resistant die steel 4Cr13.The results show that the annealed microstructure of the 0Cr13NiN steel is mainly composed of ferrite and carbides.Compared to pre⁃hardened 4Cr13 steel,pre⁃hardened 0Cr13NiN steel has better pitting resistance and toughness.The recommended pre⁃hardening heat treatment process for the 0Cr13NiN steel is quenching temperature of 980⁃1030℃,tempering temperature of 520⁃540℃,and tempering twice.The quenched microstructure is martensite+undissolved carbonitride+a small amount of retained austenite,and the tempered microstructure is tempered martensite+primary carbonitride+carbonitride.
作者
陈建礼
楚宝帅
赵志刚
Chen Jianli;Chu Baoshuai;Zhao Zhigang(Technical Center of Shanxi Taigang Stainless Steel Co.,Ltd.,Taiyuan Shanxi 030003,China;Shanxi Key Laboratory of Metal Forming Theory and Technology,School of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan Shanxi 030024,China)
出处
《金属热处理》
CAS
CSCD
北大核心
2024年第8期165-169,共5页
Heat Treatment of Metals
关键词
耐蚀模具钢0Cr13NiN
淬火
回火
组织
力学性能
耐蚀性
corrosion⁃resistant die steel 0Cr13NiN
quenching
tempering
microstructure
mechanical properties
corrosion resistance
