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3 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后焊缝区碳化物形貌及EDS分析

Fig.3 SEM images and corresponding EDS analyses of carbides in weld zone of GH3230 alloy weld plate after long-term thermal exposure at 700 oC (a), 800 oC (b), 900 oC (c), and 1000 oC (d) for 2000 h