GH3230合金薄板填丝钨极氩弧焊接头的组织稳定性

张天昊, 鞠泉, 蒙肇斌, 王浩, 胡本芙

Microstructural Stability in Tungsten Argon-Arc Welded Joint of GH3230 Superalloy Plate

ZHANG Tianhao, JU Quan, MENG Zhaobin, WANG Hao, HU Benfu

图4 GH3230合金填丝钨极氩弧焊接薄板经不同温度长期热暴露2000 h后热影响区碳化物形貌的SEM像

Fig.4 SEM images of carbides in heat affected zone of GH3230 alloy weld plate after thermal exposure at 700 oC (a), 800 oC (b), 900 oC (c), and 1000 oC (d) for 2000 h