Towards understanding of heat effects in metallic glasses on the basis of macroscopic shear elasticity

被引：46
|
作者：
Mitrofanov, Y. P. [1 ]
Wang, D. P. [2 ]
Makarov, A. S. [1 ]
Wang, W. H. [2 ]
Khonik, V. A. [1 ]
机构：
[1] State Pedag Univ, Dept Gen Phys, Lenin St 86, Voronezh 394043, Russia
[2] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
来源：
SCIENTIFIC REPORTS | 2016年 / 6卷
关键词：
STRUCTURAL RELAXATION; VISCOUS-FLOW; MODULUS; INTERSTITIALS; TRANSITION; RECOVERY; MODELS;
D O I：
10.1038/srep23026
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
It is shown that all heat effects taking place upon annealing of a metallic glass within the glassy and supercooled liquid states, i.e. heat release below the glass transition temperature and heat absorption above it, as well as crystallization-induced heat release, are related to the macroscopic shear elasticity. The underlying physical reason can be understood as relaxation in the system of interstitialcy-type "defects" (elastic dipoles) frozen-in from the melt upon glass production.
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页数：6
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