Tensile fracture morphologies of bulk metallic glass
文献类型：期刊论文
| 作者 | R. T. Qu ; M. Stoica ; J. Eckert ; Z. F. Zhang |
| 刊名 | Journal of Applied Physics
 |
| 出版日期 | 2010 |
| 卷号 | 108期号:6 |
| 关键词 | brittle fracture deformation failure (mechanical) metallic glasses notch strength statistical analysis stress effects zirconium alloys shear bands amorphous-alloys plastic-flow deformation mechanism localization liquid |
| ISSN号 | 0021-8979 |
| 中文摘要 | The fracture morphology plays a much important role not only for the failure analysis of materials but also for the clarification of their fracture mechanisms. However, quantitative analysis of the fracture morphology of bulk metallic glasses (BMGs) is still very lacking. In this study, both model and mechanical experiments were conducted to reveal the development of the fracture morphology and the effect of stress state. Inclined notch tensile specimens of a Zr-based BMG with different notch angles were designed to obtain various stress states. For the first time, some new parameters to describe the tensile fracture surfaces of the BMG specimens were proposed. Statistical analysis of these parameters shows that the stress state has a significant influence on the features of fracture surfaces. Through a discussion on the structure and heat evolution during tensile deformation, two damage mechanisms associated with thermal softening and weakening by defects are found to have a combined effect on the tensile fracture of BMG. (c) 2010 American Institute of Physics. [doi:10.1063/1.3487968] |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31418]  |
| 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 | R. T. Qu,M. Stoica,J. Eckert,et al. Tensile fracture morphologies of bulk metallic glass[J]. Journal of Applied Physics,2010,108(6). |
| APA | R. T. Qu,M. Stoica,J. Eckert,&Z. F. Zhang.(2010).Tensile fracture morphologies of bulk metallic glass.Journal of Applied Physics,108(6). |
| MLA | R. T. Qu,et al."Tensile fracture morphologies of bulk metallic glass".Journal of Applied Physics 108.6(2010). |
入库方式： OAI收割
来源：金属研究所
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