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7 GH3230合金填丝钨极氩弧焊接薄板经700 ℃长期热暴露2000 h后热影响区碳化物的TEM分析

Fig.7 TEM analyses of carbides in heat affected zone of GH3230 alloy weld plate after long-term thermal exposure at 700 oC for 2000 h (a-c) bright field TEM image of carbides (a); corresponding EDS mapping of Cr, Ni, and W (b); and SAED pattern of the red circle region in Fig.7a (c) (d-g) bright field TEM image of large-sized carbide and its surrounding small granular carbides (d); corresponding EDS mapping of Cr, Ni, W (e), and Co (f); and SAED pattern of the red circle region in Fig.7d (g)