Extended elastic model for flow in metallic glasses

被引：11
|
作者：
Wang, J. Q. [1 ]
Wang, W. H. [1 ]
Bai, H. Y. [1 ]
机构：
[1] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 2011年 / 357卷 / 01期
关键词：
Metallic glass; Elastic model; Flow; LIQUIDS; TRANSITION;
D O I：
10.1016/j.jnoncrysol.2010.09.015
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We report that both shear and bulk moduli, not only shear modulus, are critical parameters involved in both homogeneous and inhomogeneous flows in metallic glass. The flow activation energy (Delta F) of various glasses when scaled with average molar volume V-m, which is defined as flow activation energy density rho(E)=Delta F/V-m, can be expressed as: rho E = 10G + K/11. The extended elastic model is suggestive for understanding the glass transition and deformation in metallic glasses. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：223 / 226
页数：4
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