期刊
JOURNAL OF NON-CRYSTALLINE SOLIDS
卷 357, 期 1, 页码 223-226出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jnoncrysol.2010.09.015
关键词
Metallic glass; Elastic model; Flow
资金
- NSFC [50731008, 50921091]
- MOST [2007CB613904, 2010CB731603]
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.
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