期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 677, 期 -, 页码 80-86出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2016.03.217
关键词
Metallic glasses; Relaxation; Shear modulus; Interstitialcy defect
资金
- Ministry of Education and Science of the Russian Federation [3.114.2014/K]
- NSF of China [51271195]
- MOST 973 [2015CB856800]
Within the framework of the Interstitialcy theory it is shown that the amount of heat released during structural relaxation of metallic glasses must be proportional to the room-temperature change of the shear modulus. This prediction is verified by using experimental data taken on seven bulk metallic glasses. It is found that the kinetics of exothermal heat flow upon structural relaxation is determined by shear modulus relaxation. The released heat per one kinetic relaxation unit (defect) for all glasses practically coincides with the defect formation enthalpy calculated using the Interstitialcy theory providing further support for the description of structural relaxation on the basis of this approach. (C) 2016 Elsevier B.V. All rights reserved.
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