Crystallization Kinetics Study in Al87Ni10La3 Amorphous Alloy

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Roofigar Haghighi Amir; HEIDARPOUR AKBAR; Eshaghpour Soorani Mohsen; MANSOURI MEHDI

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Journal Paper

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Journal: Journal of Advanced Materials and Processing Year:2018 | Volume:6 | Issue:3 Page(s): 80-88

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Title

Crystallization Kinetics Study in Al87Ni10La3 Amorphous Alloy

Author(s)

Roofigar Haghighi Amir | HEIDARPOUR AKBAR | Eshaghpour Soorani Mohsen | MANSOURI MEHDI | Issue Writer Certificate

Keywords

Amorphous alloy

Rapid solidification

Crystallization

Thermal Analysis

Abstract

In this study, the Crystallization behavior of melt-spun Al87Ni10La3 amorphous phase was investigated by using X-ray diffraction and non-isothermal differential Thermal Analysis techniques. The results demonstrated that the amorphous phase exhibited two-stage Crystallization on heating, i. e., at first step the amorphous phase transforms into α-Al phase and at second step Al11La3 and Al3Ni intermetallic phases precipitate, simultaneously. The activation energies of the Crystallizations of the amorphous phase were evaluated by the Kissinger equation using the peak temperature of the exothermic reactions. The values of two-step Crystallization activation energies were approximately 173. 7± 6 and 278. 4± 5 kJ/mol, respectively. The Avrami index was calculated for the first and second step of Crystallizations and obtained 0. 9 and 3. 8 respectively. This kinetics investigation indicated that in the first step of Crystallization of Al87Ni10La3 alloy, the nucleation rate decreases with time, and the Crystallization is governed by a three-dimensional diffusion-controlled growth, while the second stage was in interface control regime.

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APA: Copy

Roofigar Haghighi, Amir, HEIDARPOUR, AKBAR, Eshaghpour Soorani, Mohsen, & MANSOURI, MEHDI. (2018). Crystallization Kinetics Study in Al87Ni10La3 Amorphous Alloy. JOURNAL OF ADVANCED MATERIALS AND PROCESSING (JOURNAL OF MATERIALS SCIENCE), 6(3), 80-88. SID. https://sid.ir/paper/716816/en

Vancouver: Copy

Roofigar Haghighi Amir, HEIDARPOUR AKBAR, Eshaghpour Soorani Mohsen, MANSOURI MEHDI. Crystallization Kinetics Study in Al87Ni10La3 Amorphous Alloy. JOURNAL OF ADVANCED MATERIALS AND PROCESSING (JOURNAL OF MATERIALS SCIENCE)[Internet]. 2018;6(3):80-88. Available from: https://sid.ir/paper/716816/en

IEEE: Copy

Amir Roofigar Haghighi, AKBAR HEIDARPOUR, Mohsen Eshaghpour Soorani, and MEHDI MANSOURI, “Crystallization Kinetics Study in Al87Ni10La3 Amorphous Alloy,” JOURNAL OF ADVANCED MATERIALS AND PROCESSING (JOURNAL OF MATERIALS SCIENCE), vol. 6, no. 3, pp. 80–88, 2018, [Online]. Available: https://sid.ir/paper/716816/en

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