Title: Identification of metastable phases in Fe-Ni based amorphous alloy

Authors: Dora Janovszky, Jeno Solyom, Andras Roosz

Addresses: Hungarian Academic of Science, University of Miskolc Research Group of Materials Science, University of Miskolc, H-3515 Miskolc-Egyetemvaros, Hungary. ' Hungarian Academic of Science, University of Miskolc Research Group of Materials Science, University of Miskolc, H-3515 Miskolc-Egyetemvaros, Hungary. ' Department of Physical Metallurgy and Metal Forming, Miskolc, 3515 Miskolc-Egyetemvaros, Hungary

Abstract: The crystallisation of Fe₄₀Ni₄₀B₁₆Si₄ annealed amorphous alloy was studied by Differential Scanning Calorimetry (DSC) and X-ray Diffraction (XRD) method. Samples were annealed up to 690ºC. The DSC measurements, having a constant heating rate, show three crystallisation processes. XRD was employed to determine the crystallisation product at different temperatures, the precipitates were found to be the Fe, Ni, and Fe₂B, BFe₂, Ni₃₁Si₁₂ phases.

Keywords: amorphous alloys; crystallisation; metastable phases; annealing.

DOI: 10.1504/IJMMP.2007.015318

International Journal of Microstructure and Materials Properties, 2007 Vol.2 No.3/4, pp.420 - 428

Published online: 07 Oct 2007 *

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