Direct observation of the changes in atomic arrangement of Cu_(50)Zr_(50) metallic glass during tensile deformation by EXAFS

机译：通过EXAFS直接观察拉伸变形过程中Cu_（50）Zr_（50）金属玻璃的原子排列变化

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The purpose of this research is to investigate the micro-mechanism of anelastic behavior of metallic glass. The changes of atomic arrangement in Cu_(50)Zr_(50) metallic glass were observed directly by EXAFS method during tensile deformation. The transmission-mode EXAFS measurements around Zr K-edge and Cu K-edge of the sample in various amounts of tensile deformation conditions were done. The interatomic distance between Cu-Zr increased, and that between Zr-Zr decreased simultaneously, with the amount of tensile deformation increase of the sample at first stage of deformation. When the atomic distances reached certain values, respectively, they recovered to the initial values of no tensile deformation condition at first stage, and then the atomic distances changed in same manner as the first stage of deformation, respectively.

机译：这项研究的目的是研究金属玻璃无弹性行为的微观机制。在拉伸变形过程中，通过EXAFS方法直接观察到Cu_（50）Zr_（50）金属玻璃的原子排列变化。在各种拉伸变形条件下，对样品的Zr K边缘和Cu K边缘进行了传输模式EXAFS测量。 Cu-Zr之间的原子间距离增加，而Zr-Zr之间的原子间距离同时减小，并且在变形的第一阶段，样品的拉伸变形量增加。当原子距离分别达到一定值时，它们在第一阶段恢复到无拉伸变形条件的初始值，然后原子距离分别以与变形的第一阶段相同的方式变化。

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来源
《International Symposium on Metastable and Nano-Materials(ISMANAM-2005); 20050703-07; Paris(FR)》|2005年|P.44-47|共4页
会议地点 Paris(FR)
作者
Toshio Nasu; Sadayuki Takahashi; Isao Ajiki; Takeshi Usuki; Yohei Onodera; Masaki Sakurai; Zhang Wei; Akihisa Inoue; Bo He; Wenjie Zhong; Zhi Xie; Shiqiang Wei;
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作者单位

Faculty of Education, Yamagata University, Yamagata 990-8560, Japan;

Faculty of Science, Yamagata University, Yamagata 990-8560, Japan;

Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan;

National Synchrotron Radiation Laboratory, U;

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原文格式 PDF
正文语种 eng
中图分类有色金属冶炼;
关键词
metallic glass; anelasticity; Cu_(50)Zr_(50) alloy; tensile deformation; EXAFS; radial structure function; short range structure change;

机译：金属玻璃;无弹性; Cu_（50）Zr_（50）合金;拉伸变形; EXAFS;径向结构函数;短程结构变化;

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专利

1. Direct observation of the changes in atomic arrangement of Cu_(50)Zr_(50) metallic glass during tensile deformation by EXAFS [J] . Toshio Nasu, Sadayuki Takahashi, Isao Ajiki Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2007,第0期

机译：通过EXAFS直接观察拉伸变形过程中Cu_（50）Zr_（50）金属玻璃原子排列的变化
2. Thermophysical and elastic properties of Cu_(50)Zr_(50) and (Cu_(50)Zr_(50))_(95)Al_5 bulk-metallic-glass-forming alloys [J] . G. J. Fan, M. Freels, H. Choo, Applied Physics Letters . 2006,第24期

机译：Cu_（50）Zr_（50）和（Cu_（50）Zr_（50））_（95）Al_5块状金属玻璃形成合金的热物理和弹性性质
3. Oxidation resistance of the supercooled liquid in Cu_(50)Zr_(50) and Cu_(46)Zr_(46)Al_8 metallic glasses [J] . Ka Ram Lim, Won Tae Kim, Eun-Sung Lee, Journal of Materials Research . 2012,第8期

机译：Cu_（50）Zr_（50）和Cu_（46）Zr_（46）Al_8金属玻璃中过冷液体的抗氧化性
4. Direct observation of the changes in atomic arrangement of Cu_(50)Zr_(50) metallic glass during tensile deformation by EXAFS [C] . Toshio Nasu, Sadayuki Takahashi, Isao Ajiki, International Symposium on Metastable and Nano-Materials(ISMANAM-2005) . 1991

机译：EXAFS在拉伸变形期间直接观察Cu_（50）Zr_（50）金属玻璃的原子排列变化
5. EXAFS STUDIES OF LANTHANUM-GALLIUM METALLIC GLASSES (AMORPHOUS, ATOMIC STRUCTURE). [D] . BAXTER, DAVID VERGE. 1984

机译：镧-镓金属玻璃（非晶，原子结构）的透水研究。
6. Direct in situ observation of metallic glass deformation by real-time nano-scale indentation [O] . Lin Gu, Limei Xu, Qingsheng Zhang, -1

机译：通过实时纳米级压痕直接原位观察金属玻璃的变形
7. Microstructure and crystallization of $Cu_{50}Zr_{45}Al_5$ metallic glass [O] . Ou X., Roseker W., Saksl K., 2007

机译：$ Cu_ {50} Zr_ {45} Al_5 $金属玻璃的显微组织和结晶

Direct observation of the changes in atomic arrangement of Cu_(50)Zr_(50) metallic glass during tensile deformation by EXAFS

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