超级马氏体不锈钢焊接的研究进展  

Current Status on Supermartenstic Stainless Steel(SMSS) Welding

作　　者：王斌[1] 栗卓新[1] 李国栋[1] 

机构地区：[1]北京工业大学材料科学与工程学院,北京100124

出　　处：《新技术新工艺》2008年第5期57-61,共5页New Technology & New Process

摘　　要：超级马氏体不锈钢(SMSS)由于具有很高的强度和硬度,良好的韧性和耐腐蚀性等特点,且成本低,得到了广泛的应用。介绍了近年来国内外SMSS焊接的研究进展,并阐述了合金元素(如Cr、Ni、Mo、N、Nb等)对SMSS焊接接头力学性能和显微组织的影响。对焊接接头中出现的硫化应力腐蚀、晶间应力腐蚀、氢脆等缺陷现象进行了分析;讨论了微观组织和热处理工艺对SMSS焊接接头性能的影响。最后对SMSS焊接的研究方向进行了展望。Supermartensitic stainless steel(SMSS) has high strength and hardness,excellent toughness,good corrosion resistance and the cost is relatively low,therefore it has been widely used in industry.This paper presentes the current status of SMSS welding in domestic and overseas.The influence of the alloy elements(such as Cr,Ni,Mo,N,Nb etc) on the weld microstructure and its properties is also discussed.The defects formed in SMSS welding joint,including sulfide stress corrosion,intergranular stress corrosion and hydrogen brittle,are analyzed.The effects of microstructure and post heat treatment on properties of SMSS welding joint are also discussed.Finally,developmental trend of SMSS welding is proposed.

关 键 词：超级马氏体不锈钢 焊接冶金 耐腐蚀性 微观组织 

分 类 号：TG113.26[金属学及工艺—物理冶金]