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8 焊态和在650℃时效48 h的T23钢试样CGHAZ在750℃拉断后断口附近纵截面的SEM像 (a, b) as-welded (c, d) as aged at 650oC for 48 h |
Fig.8 Longitudinal section views of CGHAZ in T23 steel samples fractured at 750oC (Insets in Figs.8b and d show the high magnified images of grain boundaries with void) |
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