聚变增殖包层用低活化9Cr-ODS钢的室温低周疲劳行为

王旗涛, 李艳芬, 张家榕, 李尧志, 付海阳, 李新乐, 严伟, 单以银

Low Cycle Fatigue Behavior of 9Cr-ODS Steel as a Fusion Blanket Structural Material at Room Temperature

WANG Qitao, LI Yanfen, ZHANG Jiarong, LI Yaozhi, FU Haiyang, LI Xinle, YAN Wei, SHAN Yiyin

图13 9Cr-ODS钢在Δεt / 2 = 0.8%时的裂纹起源与扩展

Fig.13 Fatigue crack initiation and propagation morphology of 9Cr-ODS steel under Δεt / 2 = 0.8% (a) SEM image of a main crack (Inset show the locally enlarged image. LD—loading direction) (b) local magnified EBSD-KAM image of a secondary crack of square area in the inset of Fig.13a (c) high magnified grain boundary + band contrast (GB + BC) image of square area in Fig.13b