Amorphization in mechanically driven material systems

被引：73

作者：

Ma, E ^{[1
]}

机构：

[1] Johns Hopkins Univ, GWC Whiting Sch Engn, Dept Mat Sci & Engn, Baltimore, MD 21218 USA

来源：

SCRIPTA MATERIALIA | 2003年 / 49卷 / 10期

基金：

美国国家科学基金会;

关键词：

amorphous materials; mechanical alloying; heat of mixing; immiscible systems; elastic instability;

D O I：

10.1016/S1359-6462(03)00477-9

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We comment on the stress-induced amorphization triggered by elastic instability of crystals upon shock loading at extremely high rates. We also discuss the amorphization of immiscible systems, through an evaluation of the positive heat of mixing that external driving forces must overcome to mechanically alloy the immiscible elements into amorphous solutions. These cases serve as examples illustrating the challenges in understanding mechanically driven amorphization. (C) 2003 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：941 / 946

页数：6

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