双相不锈钢焊接接头点蚀研究进展  

Research progress on pitting corrosion in welded joint of duplex stainless steel

作　　者：王国佛[1] 杨玉亭[1] 贾玉力[1] 周世峰[1] 田志伟[1] 

机构地区：[1]机械科学研究院 哈尔滨焊接研究所,150080

出　　处：《焊接》2012年第5期9-12,69,共4页Welding & Joining

摘　　要：双相不锈钢由于含氮量高使其耐点蚀性能特别是耐氯化物点蚀性能突出,国内外关于这方面的研究已不少,文中综述了双相不锈钢耐点蚀性能好坏的表征方法,N和σ相对双相不锈钢焊接接头耐点蚀性能的影响规律和作用机理,并对其研究趋势进行了展望。Duplex stainless steel has the good ability of pitting corrosion resistance,especially in the chloride solution with its high content of nitrogen,on which there are lots of researches in domestic and abroad.The evaluation methods of the pitting corrosion resistance of duplex stainless steel were overviewed.The effects of nitrogen andσphrase on the pitting corrosion resistance of duplex stainless steel were summarized, and its research trend was proposed.

关 键 词：双相不锈钢 耐点蚀性 氮含量 Σ相 

分 类 号：TG406[金属学及工艺—焊接]