Comparative Studies of Different Methods for Determining Crystallization Kinetics of Metallic Glass

被引：2
|
作者：
Barman, A. [1 ]
Chattopadhayay, C. [1 ]
Sangal, S. [1 ]
Mondal, K. [1 ]
机构：
[1] Indian Inst Technol, Dept Mat Sci & Engn, Kanpur 208016, Uttar Pradesh, India
来源：
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS | 2012年 / 65卷 / 06期
关键词：
Crystallization; Bulk metallic glass; Differential scanning calorimetry; MECHANICAL-PROPERTIES; FORMING ABILITY; PHASE-CHANGE; NUCLEATION; TEMPERATURE; PARAMETERS; KISSINGER;
D O I：
10.1007/s12666-012-0180-3
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Different non-isothermal and isothermal techniques are used to find out the phase transformation kinetic parameters (in this case, activation energy [E] of crystallization, Avrami exponent [n] and frequency factor [k (0)]) for the crystallization of a newly developed four component Zr58Cu22Al12Ag8 glassy alloy using differential scanning calorimetry (DSC) data. A comparative study is carried out to understand the effectiveness of different methods of evaluation of crystallization kinetic parameters from the DSC traces. n for the alloy varies in the range of 2.5-4 suggesting that growth varies from one to three dimensional with growth mechanism varying from diffusion controlled 3D growth to an interface controlled 1D growth.
引用
收藏
页码：565 / 570
页数：6
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