Evidence of eutectic crystallization and transient nucleation in Al89La6Ni5 amorphous alloy

Yanxin Zhuang, Jianzhong Jiang, Z. G. Lin, M. Mezouar, W. Crichton, A. Inoue

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Abstract

The phase evolution with the temperature and time in the process of crystallization of Al89La6Ni5 amorphous alloy has been investigated by in situ high-temperature and high-pressure x-ray powder diffraction using synchrotron radiation. Two crystalline phases, fcc-Al and a metastable bcc-(AlNi)(11)La-3-like phase, were identified after the first crystallization reaction, revealing a eutectic reaction instead of a primary reaction suggested in the literature. Time-dependent nucleation in the amorphous alloy is detected and the experimental data can be fitted by both the Zeldovich's and Kashchiev's transient nucleation models with transient nucleation times of 220 and 120 min, respectively.
Original languageEnglish
JournalApplied Physics Letters
Volume79
Issue number6
Pages (from-to)743-745
ISSN0003-6951
DOIs
Publication statusPublished - 2001

Bibliographical note

Copyright (2001) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

Keywords

  • KINETICS
  • ALUMINUM
  • PRESSURE
  • METALLIC GLASSES

Cite this

Zhuang, Y., Jiang, J., Lin, Z. G., Mezouar, M., Crichton, W., & Inoue, A. (2001). Evidence of eutectic crystallization and transient nucleation in Al89La6Ni5 amorphous alloy. Applied Physics Letters, 79(6), 743-745. https://doi.org/10.1063/1.1389506