Crystallization process of Zr60Ni25Al15 amorphous alloy

被引：32
作者：
Li, CF
Saida, J
Matsushida, M
Inoue, A
机构：
[1] Japan Sci & Technol, Exploratory Res Adv Technol, Inoue Superliquid Glass Project, Sendai, Miyagi 9820807, Japan
[2] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
来源：
MATERIALS LETTERS | 2000年 / 44卷 / 02期
关键词：
Zr60Ni25Al15 amorphous alloy; crystallization; glass-forming ability; analytical transmission electron microscope;
D O I：
10.1016/S0167-577X(00)00006-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper reports the crystallization process of Zr60Ni25Al15 amorphous alloy studied by using differential scanning calorimetry (DSC), analytical transmission electron microscopy (ATEM) and X-ray diffraction (XRD). The crystallization of Zr60Ni25Al15 amorphous alloy proceeds through an eutectic reaction, corresponding to the precipitation of Zr6NiAl2 and Zr5Ni4Al phases. The following reasons are addressed to the large glass-forming ability (GFA) of Zr60Ni25Al15: (a) the significant atomic redistribution of Al and Ni in the dense random packed atomic configuration and (b) the strict elemental limitation for a determined crystal site in the precipitation of Zr6NiAl2 and Zr5Ni4Al. (C) 2000 Elsevier Science B.V. All rights reserved.
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页码：80 / 86
页数：7
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