孪生诱发塑性钢拉伸与疲劳性能及变形机制
张哲峰(),邵琛玮,王斌,杨浩坤,董福元,刘睿,张振军,张鹏
Tensile and Fatigue Properties and Deformation Mechanisms of Twinning-Induced Plasticity Steels
ZHANG Zhefeng(),SHAO Chenwei,WANG Bin,YANG Haokun,DONG Fuyuan,LIU Rui,ZHANG Zhenjun,ZHANG Peng

图12. TWIP钢循环加载下微观变形和损伤机制[7,8]

Fig.12. Microscopic damage in TWIP steel under cyclic deformation (SB—slip band, GB—grain boundary)[7,8] (a~c) SEM images of surface damage features of Fe-18Mn-0.6C alloy after cyclic loading at the strain amplitudes of 0.3%, 49782 cyc (a), 1.0%, 3237 cyc (b) and 4.0%, 160 cyc (c) (d~f) TEM images of typical microstructure of Fe-30Mn-0.3C (d), Fe-30Mn-0.9C (e) and Fe-18Mn-0.6C (f) alloys after cyclic loading at the strain amplitude of 1%