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2 体心立方(bcc)金属螺位错核心结构[61]
Fig.2 The atomic core structures of the a' / 2[111] screw dislocation in body-centered cubic metals[61] (a'—lattice constant)