不同焊接方法对哈氏合金C-276焊缝组织和耐晶间腐蚀性能的影响  

Effect of Different Welding Process on Weld Microstructure and Intergranular Corrosion Resistance for Hastelloy C-276

作　　者：任冠鹏[1] 郭小辉[1] 刘志颖[1] 徐家磊[1] 张云浩[1] 

机构地区：[1]中国船舶重工集团公司第七二五研究所,河南洛阳471023

出　　处：《材料开发与应用》2016年第5期40-44,共5页Development and Application of Materials

摘　　要：采用ASTM-G28B法进行晶间腐蚀试验,分别研究了手工GTAW和手工GMAW对哈氏合金C-276焊缝组织和耐晶间腐蚀性能的影响。结果表明,手工GMAW焊接的C-276合金,焊缝区析出碳化物第二相较多,晶间腐蚀倾向更大。In this paper,ASTM-G28 B intergranular corrosion test method was used to study the effects of manual GTAW welding and manual GMAW welding on weld microstructure and intergranular corrosion resistance of Hastelloy C-276. Results show that the weld zone of Hastelloy C-276 alloy after GMAW are more vulnerable to intergranular corrosion due to more precipitation of carbide.

关 键 词：GTAW GMAW 哈氏合金C-276 晶间腐蚀 

分 类 号：TG174.22[金属学及工艺—金属表面处理]