Rejuvenation of metallic glasses by non-affine thermal strain

被引：0
|
作者：
S. V. Ketov
Y. H. Sun
S. Nachum
Z. Lu
A. Checchi
A. R. Beraldin
H. Y. Bai
W. H. Wang
D. V. Louzguine-Luzgin
M. A. Carpenter
A. L. Greer
机构：
[1] WPI Advanced Institute for Materials Research (WPI-AIMR),Department of Materials Science & Metallurgy
[2] Tohoku University,Department of Management and Engineering
[3] University of Cambridge,Department of Earth Sciences
[4] Institute of Physics,undefined
[5] Chinese Academy of Sciences,undefined
[6] University of Padua,undefined
[7] University of Cambridge,undefined
来源：
Nature | 2015年 / 524卷
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摘要：
This study shows that metallic glasses can be rejuvenated (taken to higher energy states with more plasticity) by thermally cycling them at relatively low temperatures (well below the glass transition temperature); this is attributed to the effect of intrinsic structural inhomogeneities in the glassy state, which translate into localized internal strains as the temperature is cycled and the different regions expand and contract by different amounts.
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页码：200 / 203
页数：3
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