体心立方金属韧脆转变机制研究进展

韩卫忠, 卢岩, 张雨衡

Mechanism of Ductile-to-Brittle Transition in Body-Centered-Cubic Metals：A Brief Review

HAN Weizhong, LU Yan, ZHANG Yuheng

图5 轧制W板在韧脆转变前后的位错结构[34]

Fig.5 Dislocation structures in rolled tungsten at different testing temperatures[34] ( b —Burgers vecter) (a) pre-existing dislocations before testing (b) below DBTT (c) at DBTT (d) above DBTT