Effects of quenching under high pressure on crystallization of Cu60Zr20Hf10Ti10 bulk metallic glass

被引：10
|
作者：
Wang, Zhi Xin [1 ]
Bin Lu, Jin [1 ]
Xi, Yan Jun [1 ]
机构：
[1] Zhongyuan Inst Technol, Sch Mat & Chem Engn, Zhengzhou 450007, Henan, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2009年 / 499卷 / 1-2期
关键词：
Bulk metallic glass; Crystallization; High pressure; KINETICS; TRANSITION; ALLOYS;
D O I：
10.1016/j.msea.2007.09.096
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effects of quenching under high pressure on crystallization of Cu60Zr20Hf10Ti10 (at.%) bulk metallic glass are studied by means of differential scanning calorimetry and X-ray diffraction. The temperature-time-transition diagrams of the alloy quenched under high pressure and the cast state are determined and compared. The crystallization process under different conditions is simulated based on the Johnson-Mehl-Avrami equation. The experimental results demonstrate that the pressure promotes the nucleation. The effects of high pressure on crystallization are discussed in terms of crystallization kinetics and thermodynamics. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：192 / 194
页数：3
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