Thermal expansion and indentation-induced free volume in Zr-based metallic glasses measured by real-time diffraction using synchrotron radiation

被引：113
作者：
Hajlaoui, K
Benameur, T
Vaughan, G
Yavari, AR
机构：
[1] Inst Natl Polytech Grenoble, ENSEEG, LTPCM, CNRS, F-38402 St Martin Dheres, France
[2] ENIM, Lab Genie Mecan, Monastir, Tunisia
[3] European Synchrotron Radiat Facil, F-38042 Grenoble, France
来源：
SCRIPTA MATERIALIA | 2004年 / 51卷 / 09期
关键词：
metallic glass; synchrotron radiation; plastic deformation; free volume; structural relaxation;
D O I：
10.1016/j.scriptamat.2004.07.008
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Changes in thermal expansion coefficient and excess free volume content during in situ heating-cooling cycles of metallic glasses in the as-quenched state and after indentation were measured in the temperature range between 350 and 670 K by real-time diffraction. It was found that deformation produced by an array of ball indentations generate more than 37% increase of free volume in Zr-based glassy ribbons. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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页码：843 / 848
页数：6
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