Analysis on shear deformation mechanism of metallic glass under confined bending test
文献类型：期刊论文
| 作者 | J. X. Zhao ; F. F. Wu ; Z. F. Zhang |
| 刊名 | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
 |
| 出版日期 | 2010 |
| 卷号 | 527期号:23页码:6224-6229 |
| 关键词 | Metallic glasses Confined bending test Plastic deformation Shear bands bulk amorphous-alloys fracture mechanisms melt extraction aspect ratio si-b plasticity behavior band composites plates |
| ISSN号 | 0921-5093 |
| 中文摘要 | The shear deformation mechanism of Zr-based metallic glass under multiaxial loadings was systematically analyzed. By means of a confined bending test (CBT), some regular shear bands (SBs) initiated on the tension surface of the specimen and the metallic glass showed certain plastic deformation ability due to the stable propagation of SBs. Moreover, the angles between most of the SBs and the edges of the specimen were measured to be 55 degrees approximately. In order to reveal the shear deformation mechanism under the CBT, a nonlinear contact analytical model based on the finite element method (FEM) was proposed. Furthermore, according to the stress results obtained by simulations, a stress analysis method was employed to establish the relationship between the SB angle and the shear deformation process. Finally, compared with the experimental results above, it was concluded that the stress gradient produced by CBT was the key factor which could stimulate certain plasticity. Additionally, the initiation and propagation of the SBs were stable due to the multiaxial stress state in specimen. (C) 2010 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31743]  |
| 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 | J. X. Zhao,F. F. Wu,Z. F. Zhang. Analysis on shear deformation mechanism of metallic glass under confined bending test[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2010,527(23):6224-6229. |
| APA | J. X. Zhao,F. F. Wu,&Z. F. Zhang.(2010).Analysis on shear deformation mechanism of metallic glass under confined bending test.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,527(23),6224-6229. |
| MLA | J. X. Zhao,et al."Analysis on shear deformation mechanism of metallic glass under confined bending test".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 527.23(2010):6224-6229. |
入库方式： OAI收割
来源：金属研究所
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