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Crystallization Behavior of Al70Fe12.5V12.5Nb₅ Amorphous Alloy Formed by Mechanical Alloying
Xuan Liu1,2,3, Xingfu Wang4, Yongli Si5,6
1Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Science, Hefei 230031, China. liuxuan@ahjzu.edu.cn.
Abstract:
In this study, the formation and crystallization of the Al70Fe12.5V12.5Nb₅ amorphous alloys has been investigated. The addition of Nb enhances the supercooled liquid region and glass forming ability of the Al-Fe-V amorphous alloys. The Al70Fe12.5V12.5Nb₅ amorphous alloy exhibits two distinct crystallization steps and a large supercooled liquid region at more than 100 K. Kissinger and Ozawa analyses showed that the two activation energies for crystallization (Ex) were estimated to be 366.3 ± 23.9 and 380.5 ± 23.9 kJ/mol. Large supercooled liquid regions are expected to gain an application field of Al-based amorphous alloys.
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