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EXAFS Studies on Local Atomic Structure in the Amorphous Mg_(65)Cu_(25)Gd_(10) Alloy |
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| Authors: | LI Guoqiang ZHENG Lijing CAI Quan LI Huanxi WANG Xiaomin SUN Tianyu |
| Affiliation: | LI Guoqiang1,ZHENG Lijing2,CAI Quan3,LI Huanxi2,WANG Xiaomin1,SUN Tianyu4 (1. Business Development Department,China Perfect Machinery Industry Corp. Ltd,Shanghai 200061,China,2. School of Materials Science & Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100083,3. Beijing Synchrotron Radiation Facility,Beijing 100039,4. Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China) |
| Abstract: | Local atomic structures of an amorphous Mg65Cu25Gd10 alloy and the structural changes by thermal annealing have been studied by extended X-ray absorption fine structure (EXAFS). The correlation between structural changes and mechanical properties for the Mg65Cu25Gd10 alloy has also been discussed. Results showed that Cu atoms around Gd in Mg65Cu25Gd10 lost rapidly during annealing , resulting in the segregation of Cu atoms. The coordination number NGd-Mg of Mg65Cu25Gd10 annealed at 373 K first diminished an... |
| Keywords: | magnesium alloy amorphous alloy short-range EXAFS mechanical properties annealing |
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