Title of article
Kinetic analysis of the isochronal crystallization of Ti40Zr25Ni8Cu9Be18 metallic glass
Author/Authors
Kou، نويسنده , , H.C. and Wang، نويسنده , , J. and Chang، نويسنده , , H. and Tang، نويسنده , , B. and Li، نويسنده , , J.S. and Hu، نويسنده , , R. and Zhou، نويسنده , , L.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2009
Pages
5
From page
420
To page
424
Abstract
The isochronal crystallization kinetics of the Ti40Zr25Ni8Cu9Be18 metallic glass has been investigated by differential scanning calorimetry (DSC). Results indicate that the two crystallization events of this metallic glass cannot be well-described by the classic Johnson–Mehl–Avrami (JMA) kinetic equation. The kinetic equation considering the impingement effect has been found more applicable for describing the isochronal crystallization kinetics of this amorphous alloy. Accurate values of kinetic parameters were determined by fitting the theoretical DSC data to experimental curves. The kinetic parameters change in different crystallization stages and show strong heating rate dependence. Reasons of the deviation from the JMA kinetics for the isochronal crystallization of Ti40Zr25Ni8Cu9Be18 metallic glass were discussed.
Keywords
Amorphous metals , Metallic glasses , crystallization
Journal title
Journal of Non-Crystalline Solids
Serial Year
2009
Journal title
Journal of Non-Crystalline Solids
Record number
1381244
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