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3 超细晶纯钛的裂纹扩展参数值
Table 3 Parameter values of crack propagation in UFG pure titanium
Materials

Kth

/MPa?m1/2

Kth, crit

/MPa?m1/2

ECAP6.810.69
ECAP+RS9.611.71
Annealing at 300℃ after ECAP+RS9.211.26
Annealing at 400℃ after ECAP+RS7.310.65