Strength softening at shear bands in metallic glasses
文献类型：期刊论文
| 作者 | Lei, XQ ; Wei, YJ ; Hu, Z ; Wang, WH |
| 刊名 | PHILOSOPHICAL MAGAZINE LETTERS
 |
| 出版日期 | 2013 |
| 卷号 | 93期号:4页码:221 |
| 关键词 | metallic glasses shear band bending strength softening |
| ISSN号 | 0950-0839 |
| 通讯作者 | Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China. |
| 中文摘要 | The plasticity of metallic glasses (MGs) is mediated by localized shearing in thin bands, degrading the mechanical properties at shear bands (SBs), which can cause shear localization and poor deformability. Quantifying the strength loss at SBs in MGs is important for both further material improvement and failure prediction. By applying a combination of microscale bending with in situ tensile tests, we successfully determine the strength loss at SBs in two typical MGs, namely Zr41Ti14Cu12.5Ni10Be22.5 and (Cu50Zr50)95Al5, that are about 20% lower than those of their intact counterparts. We further notice, based on fractographic examinations, that stable SBs may induce only a negligible heat, but unstable SBs give rise to a high temperature increase in SBs. This observation sheds light on the controversy about whether SBs in MGs must be hot. |
| 资助信息 | Chinese Academy of Sciences; NSFC [11021262, 50921091]; MOST 973 of China [2012CB937500, 2010CB731603] |
| 语种 | 英语 |
| 公开日期 | 2014-01-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57478]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Lei, XQ,Wei, YJ,Hu, Z,et al. Strength softening at shear bands in metallic glasses[J]. PHILOSOPHICAL MAGAZINE LETTERS,2013,93(4):221. |
| APA | Lei, XQ,Wei, YJ,Hu, Z,&Wang, WH.(2013).Strength softening at shear bands in metallic glasses.PHILOSOPHICAL MAGAZINE LETTERS,93(4),221. |
| MLA | Lei, XQ,et al."Strength softening at shear bands in metallic glasses".PHILOSOPHICAL MAGAZINE LETTERS 93.4(2013):221. |
入库方式： OAI收割
来源：物理研究所
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