高强管线钢焊接临界再热粗晶区中逆转奥氏体的逆相变晶体学

李学达, 李春雨, 曹宁, 林学强, 孙建波

Crystallography of Reverted Austenite in the Intercritically Reheated Coarse-Grained Heat-Affected Zone of High Strength Pipeline Steel

LI Xueda, LI Chunyu, CAO Ning, LIN Xueqiang, SUN Jianbo

图2 X100管线钢热模拟CGHAZ组织的SEM像

Fig.2 SEM images with low (a) and high (b) magnifi-cations of the simulated CGHAZ microstructure of X100 pipeline steel (CGHAZ—coarse-grained heat affected zone, M-A—martensite-austenite, GB—granular bainite, AF—acicular ferrite, LB—lath bainite)