Crystallization behavior of Mg60Ni23.6La16.4 metallic glass

被引：0

作者：

Zhuang, Wei ^{[1
,2
]}

Du, Yu-Lei ^{[1
,2
]}

机构：

[1] Nanjing Univ Sci & Technol, Engn Res Ctr Mat Behav & Design, Minist Educ, Nanjing 210094, Jiangsu, Peoples R China

[2] Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Jiangsu, Peoples R China

来源：

NEW MATERIALS AND PROCESSES, PTS 1-3 | 2012年 / 476-478卷

关键词：

metallic glasses; crystallization behavior; thermal analysis; AMORPHOUS-ALLOYS; KINETICS;

D O I：

10.4028/www.scientific.net/AMR.476-478.85

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Mg60Ni23.6La16.4 amorphous ribbon was prepared by melting-spinning method and the crystallization behavior was investigated by differential scanning calorimetry (DSC). The Mg60Ni23.6La16.4 crystallization process exhibits two stages of crystallization and shows an obviously kinetic nature. Isothermal DSC curves indicate that the crystallization is a nucleation-and-growth procedure. The activation energy analysis based on Kissinger Method shows that the growth process for the first crystallization procedure is more difficult than that for the second one. Calculation based on the Johnson-Mehl-Avrami (JMA) model shows that the primary crystallization starts from small crystalline grains with an increasing nucleation rate.

引用

页码：85 / +

页数：2

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