中文摘要：

二进制 Cu50Zr50 和第三的 Cu50Zr45Ti5 体积的结构的行为在应用应力下面的金属性的眼镜(BMG ) 借助于在原处高的精力 X 光检查同步加速器衍射被调查。紧张张肌的部件在真实空格从原子对关联函数(PDF ) 的最大值的移动被决定。在 first-nearest-neighbor 壳对压力的各向异性的原子重取向建议结构的重新整理在短期顺序。在塑料变丑范围以内，金属性的玻璃的全面紧张等于收益紧张。在卸掉以后，原子结构回到无压力的状态，并且短期顺序与 undeformed 状态的相同。然而，塑料变丑导致局部性砍平均衍射模式对其对体积的贡献太弱的乐队被检测。各向异性的部件证实的一个一致区域被激活到抵销压力变化由于在 first-nearest-neighbor 壳的原子契约重取向。一致区域的尺寸是统治收益力量和 BMG 的塑料紧张能力的一个重要因素。

英文摘要：

The structural behavior of binary Cu50Zr50 and ternary Cu50Zr45Ti5 bulk metallic glasses （BMGs） under applied stress was investigated by means of in-situ high energy X-ray synchrotron diffraction. The components of the strain tensors were determined from the shifts of the maxima of the atomic pair correlation functions （PDF） in real space. The anisotropic atomic reorientation in the first-nearest-neighbor shell versus stress suggests structural rearrangements in short-range order. Within the plastic deformation range the overall strain of the metallic glass is equal to the yield strain. After unloading,the atomic structure returns to the stress-free state,and the short-range order is identical to that of the undeformed state. Plastic deformation,however,leads to localized shear bands whose contribution to the volume averaged diffraction pattern is too weak to be detected. A concordant region evidenced by the anisotropic component is activated to counterbalance the stress change due to the atomic bond reorientation in the first-nearest-neighbor shell. The size of the concordant region is an important factor dominating the yield strength and the plastic strain ability of the BMGs.