Strength softening at shear bands in metallic glasses
文献类型：期刊论文
| 作者 | Lei XQ(雷现奇) ; Wei YJ(魏宇杰); Hu Z(胡铮); Wang WH(汪卫华)
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| 刊名 | PHILOSOPHICAL MAGAZINE LETTERS
 |
| 出版日期 | 2013-04-01 |
| 卷号 | 93期号:4页码:221-230 |
| 通讯作者邮箱 | yujie_wei@lnm.imech.ac.cn |
| 关键词 | metallic glasses shear band bending strength softening |
| ISSN号 | 0950-0839 |
| 产权排序 | [Lei, Xianqi; Wei, Yujie; Hu, Zheng] Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China; [Wang, Wei-Hua] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China |
| 通讯作者 | Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China |
| 合作状况 | 国内 |
| 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. |
| 学科主题 | 新型材料的力学问题 |
| 分类号 | Q3 |
| 收录类别 | SCI ; EI |
| 资助信息 | Chinese Academy of Sciences; NSFC [11021262, 50921091]; MOST 973 of China [2012CB937500, 2010CB731603] |
| 原文出处 | http://dx.doi.org/10.1080/09500839.2012.760851 |
| 语种 | 英语 |
| WOS记录号 | WOS:000317312400005 |
| 公开日期 | 2013-03-06 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/46987]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 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):221-230. |
| APA | Lei XQ,Wei YJ,Hu Z,&Wang WH.(2013).Strength softening at shear bands in metallic glasses.PHILOSOPHICAL MAGAZINE LETTERS,93(4),221-230. |
| MLA | Lei XQ,et al."Strength softening at shear bands in metallic glasses".PHILOSOPHICAL MAGAZINE LETTERS 93.4(2013):221-230. |
入库方式： OAI收割
来源：力学研究所
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