Modulation of β-relaxation by modifying structural configurations in metallic glasses

被引：14
|
作者：
Zhao, L. Z. [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 | 2014年 / 405卷
关键词：
Metallic glass; Relaxation; Structure; HARDNESS; TRANSITION; MODULUS;
D O I：
10.1016/j.jnoncrysol.2014.08.034
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：
beta-relaxation and mechanical properties of La-based metallic glasses are investigated by modulation of quenching rate of the MGs. We find that the quenching rate has a remarkable effect on the beta-relaxation behaviors and the mechanical properties of the metallic glasses. The beta-relaxation shows a strong dependence on the cooling rate of the sample preparation, indicating that there is a correlation between the concentration of the potential flow units and the beta-relaxation behaviors. The results imply that the beta-relaxation is closely correlated with the inhomogeneous microstructure or the density of the potential flow units in the metallic glasses. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：207 / 210
页数：4
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