Cr-Mn-N奥氏体不锈钢的晶间腐蚀性能研究  

Research on intercrystalline corrosion of Cr-Mn-N austenitic stainless steel

作　　者：廖洪军[1] 温继勇[1] 姚长贵[1] 王敏[1] 杨智豪[1] 

机构地区：[1]宝山钢铁股份有限公司,上海200940

出　　处：《世界钢铁》2012年第2期46-49,共4页World Iron & Steel

摘　　要：晶间腐蚀性能是钻铤结构件用奥氏体无磁不锈钢的重要性能之一。采用不锈钢10%草酸浸蚀试验方法、不锈钢65%硝酸腐蚀试验方法以及不锈钢硫酸-硫酸铜试验方法对三种不同成分的Cr-Mn-N奥氏体不锈钢做了晶间腐蚀试验。试验结果表明,A钢种在不同的腐蚀条件下均具有良好的耐晶间腐蚀性能,该材料按0.03%C、18.96%Cr、0.57%N的化学成分设计可以达到优良的耐晶间腐蚀性能。The intercrystalline corrosion resistance is one of the important performances in austenitic-nonmagnetic stainless steel used for drill collar components.This paper describes the intercrystalline corrosion test on three Cr-Mn-N austenitic stainless steels having different compositions with 10% oxalic acid etching,65% nitric acid eroding and sulfuric acid-bluestone methods.The experimental result shows that the steel grade A has the better resistance to intercrystalline corrosion in different corrosive circumstances.On the assumption that this kind of material is designed proportionally with 0.03%C,18.96%Cr and 0.57%N,the perfect property of intercrystalline corrosion resistance can be attained.

关 键 词：奥氏体 钻铤 不锈钢 晶间腐蚀 

分 类 号：TG174.33[金属学及工艺—金属表面处理]