Crystallization kinetics of the CU43Zr43Al7Ag7 amorphous alloy

被引：15
|
作者：
Park, S. O.
Lee, J. C.
Kim, Y. C.
Fleury, E.
Sung, D. S.
Kim, D. H.
机构：
[1] Korea Adv Inst Sci & Technol, Adv Mat Res Ctr, Seoul 130650, South Korea
[2] Korea Univ, Div Engn & Mat Sci, Seoul 136701, South Korea
[3] Yonsei Univ, Ctr Non Crystalline Mat, Dept Engn Met, Seoul 120749, South Korea
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2007年 / 449卷
关键词：
kinetic; crystallization; amorphous alloy; phase separation;
D O I：
10.1016/j.msea.2006.02.445
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The crystallization kinetics of the Cu(43)Zr(43)A(17)Ag(7) (at.%) amorphous alloy was studied by means of differential scanning calorimetry (DSC) in the continuous heating and isothermal annealing modes. In the case of continuous heating, the activation energy for crystallization corresponding to the first exothermal peak was significantly lower than that of the second peak. The isothermal kinetic, analyzed using the John son-Mehl-Avrami equation, yielded values of the Avrami exponents in the range 1.74-2.64, which implied that the first crystallization was governed by a three-dimensional diffusion-controlled growth. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：561 / 564
页数：4
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