Crystallization Behavior of Al70Fe12.5V12.5Nb₅ Amorphous Alloy Formed by Mechanical Alloying

Xuan Liu; Xingfu Wang; Yongli Si; Xiaokang Zhong; Fusheng Han

doi:10.3390/ma12030383

Crystallization Behavior of Al₇₀Fe_12.5V_12.5Nb₅ Amorphous Alloy Formed by Mechanical Alloying

Materials (Basel). 2019 Jan 26;12(3):383. doi: 10.3390/ma12030383.

Authors

Xuan Liu^{1

2

3}, Xingfu Wang⁴, Yongli Si^{5

6}, Xiaokang Zhong^{7

8}, Fusheng Han⁹

Affiliations

¹ Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Science, Hefei 230031, China. liuxuan@ahjzu.edu.cn.
² University of Science and Technology of China, Hefei 230026, China. liuxuan@ahjzu.edu.cn.
³ College of Civil Engineering, Anhui Jianzhu University, Hefei 230061, China. liuxuan@ahjzu.edu.cn.
⁴ Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Science, Hefei 230031, China. wangxingfu@issp.ac.cn.
⁵ Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Science, Hefei 230031, China. siyongli@mail.ustc.edu.cn.
⁶ University of Science and Technology of China, Hefei 230026, China. siyongli@mail.ustc.edu.cn.
⁷ Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Science, Hefei 230031, China. xkzhong@mail.ustc.edu.cn.
⁸ University of Science and Technology of China, Hefei 230026, China. xkzhong@mail.ustc.edu.cn.
⁹ Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Science, Hefei 230031, China. fshan@issp.ac.cn.

Abstract

In this study, the formation and crystallization of the Al₇₀Fe_12.5V_12.5Nb₅ 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 Al₇₀Fe_12.5V_12.5Nb₅ 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 (E_x) 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.

Keywords: Nb addition; aluminum-based amorphous alloys; mechanical alloying; supercooled liquid region.