晶粒尺寸对Fe-Mn-Al-C系第三代TWIP钢低周疲劳性能的影响

韩婧, 邵琛玮, 邱子浩, 张振军, 张哲峰

Effect of Grain Size on Low-Cycle Fatigue Properties of an Fe-Mn-Al-C Third Generation TWIP Steel

HAN Jing, SHAO Chenwei, QIU Zihao, ZHANG Zhenjun, ZHANG Zhefeng

图8 8和60 μm晶粒尺寸的Fe-22Mn-3Al-0.6C TWIP钢循环加载后的形变孪晶(簇)分布

Fig.8 Electron channeling contrast imaging (a, b) and EBSD maps (c, d) of deformation twinning (cluster) distributions of Fe-22Mn-3Al-0.6C TWIP steels with grain sizes of 8 μm (a, c) and 60 μm (b, d) after cyclic loading with total strain amplitude of 1.0%