Shear stress induced reduction of glass transition temperature in a bulk metallic glass
文献类型：期刊论文
| 作者 | H. Jin ; J. Wen ; K. Lu |
| 刊名 | Acta Materialia
 |
| 出版日期 | 2005 |
| 卷号 | 53期号:10页码:3013-3020 |
| 关键词 | metallic glasses enthalpy recovery glass transition pressure stress free volume activation volume structural relaxation plastic-flow free-volume pressure deformation liquids thermodynamics mechanisms diffusion kinetics |
| ISSN号 | 1359-6454 |
| 中文摘要 | In contrast to previous observations of a slight increase in glass transition temperature (T-g) under hydrostatic pressure, we report, for the first time, a drastic reduction of T-g (40 K/500 MPa) induced by shear stress in a Zr46.75Ti8.25Cu7.5Ni10.0Be27.5 bulk metallic glass, which gives rise to the experimental observation of the drastic decrease in flow temperature while a compressive stress was applied. The significant T-g reduction is attributed to a large activation volume of relaxation &UDelta; V-t under shear stress (126 &ANGS;(3)), and can be quantitatively interpreted in terms of the free volume model. © 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34886]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | H. Jin,J. Wen,K. Lu. Shear stress induced reduction of glass transition temperature in a bulk metallic glass[J]. Acta Materialia,2005,53(10):3013-3020. |
| APA | H. Jin,J. Wen,&K. Lu.(2005).Shear stress induced reduction of glass transition temperature in a bulk metallic glass.Acta Materialia,53(10),3013-3020. |
| MLA | H. Jin,et al."Shear stress induced reduction of glass transition temperature in a bulk metallic glass".Acta Materialia 53.10(2005):3013-3020. |
入库方式： OAI收割
来源：金属研究所
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