316H奥氏体不锈钢晶间腐蚀试验评价方法研究  

Research on Evaluation Method of Intergranular Corrosion Test for 316H Austenitic Stainless Steel

作　　者：刘燕 臧涛 Liu Yan;Zang Tao(Technology Center of Jiuquan Iron and Steel(Group)Corporation,Jiayuguan,Gansu,735100)

机构地区：[1]酒钢集团技术中心,甘肃嘉峪关735100

出　　处：《酒钢科技》2023年第5期63-66,共4页

摘　　要：本文通过电子探针显微分析和金相微观检测方法,研究了316H奥氏体不锈钢晶间腐蚀试验弯曲裂纹微观特征。结果表明:该裂纹为钢板表面原始裂纹,非晶间腐蚀裂纹。晶间腐蚀弯曲试样出现裂纹,不能作为晶间腐蚀评价的唯一判据,应进行补充金相等微观检测后综合评价。The microscopic characteristics of bending cracks in intergranular corrosion tests of 316H austenitic stainless steel are investigated by using electron probe microanalysis and metallographic microscopic detection methods.The results indicate that the crack is an original crack on the surface of the steel plate and an amorphous intergranular corrosion crack.It’s believed that the appearance of cracks in the bending specimen of intergranular corrosion cannot be used as the sole criterion for evaluating intergranular corrosion,and comprehensive evaluation should be conducted after supplementary metallographic examination.

关 键 词：316H奥氏体不锈钢 晶间腐蚀 裂纹 组织 

分 类 号：TG1[金属学及工艺—金属学]