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6 GH3230合金填丝钨极氩弧焊接薄板经700 ℃长期热暴露2000 h后焊缝区碳化物形貌的TEM像、EDS元素面分布及选区电子衍射(SAED)花样

Fig.6 Bright field TEM image of carbides (a); corresponding EDS mapping of Cr, Ni, and W (b); and selected area electron diffraction (SAED) pattern of the red circle region in Fig.6a (c) in weld zone of GH3230 alloy weld plate after long-term thermal exposure at 700 oC for 2000 h