超低碳C-276合金敏化处理对显微组织及晶间腐蚀敏感性的影响  

Effect of Sensitization Treatment on Microstructure and Intergranular Corrosion Sensitivity of C-276 Alloy with Ultralow Carbon

作　　者：李艳美 王明家 江山昱 张爽 魏宏宇 刘聪 马忠仁 万志永 Li Yanmei;Wang Mingjia;Jiang shanyu;Zhang Shuang;Wei Hongyu;Liu Cong;Ma Zhongren;Wan zhiyong

机构地区：[1]秦皇岛核诚镍业有限公司,河北066200 [2]燕山大学,亚稳材料制备技术与科学国家重点实验室,河北066004 [3]中信戴卡股份有限公司,河北066011

出　　处：《大型铸锻件》2020年第4期20-23,共4页Heavy Casting and Forging

摘　　要：在中温敏化区700~900℃范围内,对C-276合金板材样品进行不同时间的敏化处理。采用ASTM G28:2015中A法,对固溶和敏化后的C-276样品进行晶间腐蚀试验,研究其显微组织特别是碳化物的变化情况,得出敏化处理对C-276合金微观组织和晶间腐蚀敏感性的影响规律。The C-276 alloy plate samples have been sensitized for different time in the range of 700~900℃.ASTM G28:2015 method A has been used to test the intergranular corrosion of solid solution and sensitized C-276 samples.Metallographic microscope and SEM have been used to study the changes of the microstructure,especially the carbides,and the influence rule of sensitization treatment on the microstructure and the intergranular corrosion sensitivity of C-276 alloy has been obtained.

关 键 词：超低碳C-276合金 敏化处理 晶间腐蚀 碳化物 

分 类 号：TG174.2[金属学及工艺—金属表面处理]