Kinetic study of the crystallization process of the α-Fe phase in the amorphous Fe81B13Si4C2 alloy

  • Bojan Ž. Janković Faculty of Physical Chemistry, Department of the Dynamics and Structure of Matter, University of Belgrade
DOI: https://doi.org/10.5937/vojtehg62-4586
Keywords: crystallization, amorphous alloys, kinetic analysis, apparent activation energy, XRD, DSC,

Abstract


The kinetic study of the crystallization process of the α-Fe phase from the amorphous Fe81B13Si4C2 alloy was investigated by DSC and XRD techniques. The kinetic parameters (lnA, Ea) of the investigated process were determined using the Kissinger and isoconversional (model-free) methods. It was established that the α-Fe crystallization process can be described by the JMA (Johnson-Mehl-Avrami) kinetic equation. In accordance with the XRD analysis and the calculated crystallization parameters (n = 4; m = 3), it was concluded that the crystallization stages of the considered process can be described by the bulk nucleation and the three-dimensional (3D) growth of nuclei.

 

 

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Published
2014/04/24
Issue
Vol. 62 No. 2 (2014): April – June
Section
Review Papers

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