A fictive stress model calculation of stress-overshoot: A nonlinear viscoelastic behavior in metallic glass

被引:25
作者
Chen, HS
Kato, H
Inoue, A
机构
[1] Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA
[2] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 2000年 / 39卷 / 4A期
关键词
glass alloy; glass transition; nonlinear viscoelasticity; structural relaxation; model calculation;
D O I
10.1143/JJAP.39.1808
中图分类号
O59 [应用物理学];
学科分类号
摘要
A model, based on the hypothesis of stress-induced structural relaxation and a concept of fictive stress, is proposed Dr nonlinear viscoelastic behavior in glassy materials. A model calculation has been carried out on the stress-overshoot phenomenon observed in metallic glasses. The model calculation reproduces the experimental results of a Pd40Ni10Cu30P20 glass fairly well, in particular, the development of stress-overshoot behavior with increasing strain rate and lowered temperature. In addition, the model reveals a stress-overshoot and -undershoot oscillatory behavior which has not been reported previously in metallic glasses, but has been observed in many polymer solutions.
引用
收藏
页码:1808 / 1811
页数:4
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