高温时效对T23钢粗晶热影响区显微组织及再热裂纹敏感性的影响

王学, 李勇, 王家庆, 胡磊

Effect of High Temperature Ageing on Microstructure and Stress-Relief Cracking Susceptibility of Coarse Grain Heat Affected Zone in T23 steel

WANG Xue, LI Yong, WANG Jiaqing, HU Lei

图9 焊态和在650℃时效48 h的T23钢试样CGHAZ在750℃短时拉伸后的TEM像 (a, b) as-welded (Inset in Fig.9a shows the corresponding EDS analysis) (c, d) aged at 650oC for 48 h (Insets show the high magnified images of lath interior in Fig.9c and laths in Fig.9d)

Fig.9 TEM images of CGHAZ in T23 steel samples fractured at 750oC