超细晶纯钛疲劳裂纹的扩展行为

刘晓燕, 柳奎君, 杨西荣, 王敬忠, 罗雷

Fatigue Crack Propagation Behavior of Ultrafine Grained Pure Titanium

LIU Xiaoyan, LIU Kuijun, YANG Xirong, WANG Jingzhong, LUO Lei

表2 超细晶纯钛的力学性能

Table 2 Mechanical properties of UFG pure titanium

Materials YS/MPa UTS/MPa δ/% As-received 327 479 33.5 ECAP 525 658 15.8 ECAP+RS 774 910 12.9 Annealing at 300℃ after ECAP+RS 746 871 14 Annealing at 400℃ after ECAP+RS 625 780 19