0Cr32Ni7Mo3N双相不锈钢耐晶间腐蚀性能研究  

Study on Resistance to Intergranular Corrosion of 0Cr32Ni7Mo3N Duplex Stainless Steel

作　　者：王永霞[1] 杭博 魏飞虎 卞小龙 朱文晨 WANG Yong-xia;HANG Bo;WEI Fei-hu;BIAN Xiao-long;ZHU Wen-chen(Bengbu University,Bengbu 233030,China)

机构地区：[1]蚌埠学院

出　　处：《廊坊师范学院学报（自然科学版）》2019年第2期58-61,共4页Journal of Langfang Normal University(Natural Science Edition)

基　　金：2018年蚌埠学院自然科学项目基金(2018ZR02);2017年安徽省大学生创新创业训练计划项目(201711305057)

摘　　要：对含氮双相不锈钢0Cr32Ni7Mo3N进行了1180℃、1200℃和1220℃的固溶处理,采用OM、EDS及电化学工作站研究了固溶处理温度对双相不锈钢显微组织和耐晶间腐蚀性能的影响。结果表明:随固溶温度的升高,奥氏体相体积分数逐渐减少,铬、钼和镍在两相中的分布趋于均匀;材料的耐晶间腐蚀性能逐渐升高。The 0Cr32Ni7Mo3N duplex stainless steel was treated at 1180℃,1220℃and 1.220℃solution temperature.The effects of solution temperature on the microstructure and intergranular corrosion resistance of duplex stainless steel were investigated by OM,EDS and electrochemical workstations.The results show that with the increase of solid solution temperature,the volume fraction of austenite phase decreases,the distribution of Cr,Mo and Ni in the two phases tends to be uniform;the intergranular corrosion resistance of duplex stainless steel increases gradually.

关 键 词：固溶温度 显微组织 奥氏体相 分配系数 贫铬 晶间腐蚀 

分 类 号：TG151.1[金属学及工艺—热处理]