Reformation Capability of Short-Range Order and Their Medium-Range Connections Regulates Deformability of Bulk Metallic Glasses
文献类型：期刊论文
| 作者 | Li, Congling1,2; Wei, Yujie1 ; Shi, Xinghua1; Li CL; Shi XH(施兴华); Wei YJ(魏宇杰)
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| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2015-07-16 |
| 卷号 | 5页码:12177 |
| 通讯作者邮箱 | shixh@imech.ac.cn |
| ISSN号 | 2045-2322 |
| 通讯作者 | Shi, XH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China. |
| 产权排序 | [Li, Congling; Wei, Yujie; Shi, Xinghua] Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China; [Li, Congling] Luoyang Inst Sci & Technol, Sch Civil Engn, Luoyang 471023, Henan Province, Peoples R China |
| 中文摘要 | Metallic glasses (MGs) typically have high yield strength while low ductility, and the latter is commonly considered as the Achilles' heel of MGs. Elucidate the mechanism for such low ductility becomes the research focus of this field. With molecular level simulations, we show the degree of short-range order (SRO) of atomic structure for brittle Fe-based glass decreases dramatically during the stretch, while mild change occurs in ductile Zr-based glass. The reformation capability for SRO and their medium-range connections is found to be the primary characteristics to differentiate the deformability between the two metallic glasses. We suspect that, in addition to the strength of networks formed by SRO structure, the reformation capability to reform SRO networks also plays the key role in regulating the ductility in metallic glasses. Our study provides important insights into the understanding about the mechanisms accounting for ductility or brittleness of bulk metallic glasses. |
| 英文摘要 | Metallic glasses (MGs) typically have high yield strength while low ductility, and the latter is commonly considered as the Achilles' heel of MGs. Elucidate the mechanism for such low ductility becomes the research focus of this field. With molecular level simulations, we show the degree of short-range order (SRO) of atomic structure for brittle Fe-based glass decreases dramatically during the stretch, while mild change occurs in ductile Zr-based glass. The reformation capability for SRO and their medium-range connections is found to be the primary characteristics to differentiate the deformability between the two metallic glasses. We suspect that, in addition to the strength of networks formed by SRO structure, the reformation capability to reform SRO networks also plays the key role in regulating the ductility in metallic glasses. Our study provides important insights into the understanding about the mechanisms accounting for ductility or brittleness of bulk metallic glasses. |
| 学科主题 | Science & Technology - Other Topics |
| 类目[WOS] | Multidisciplinary Sciences |
| 分类号 | 一类 |
| 研究领域[WOS] | Science & Technology - Other Topics |
| 关键词[WOS] | MOLECULAR-DYNAMICS ; DEFORMATION ; FLOW ; PLASTICITY ; BEHAVIOR ; FRACTURE ; DUCTILE ; SOLIDS ; MODEL |
| 收录类别 | SCI |
| 原文出处 | http://dx.doi.org/10.1038/srep12177 |
| 语种 | 英语 |
| WOS记录号 | WOS:000358008100001 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/55332]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China 2.Luoyang Inst Sci & Technol, Sch Civil Engn, Luoyang 471023, Henan Province, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Congling,Wei, Yujie,Shi, Xinghua,et al. Reformation Capability of Short-Range Order and Their Medium-Range Connections Regulates Deformability of Bulk Metallic Glasses[J]. SCIENTIFIC REPORTS,2015,5:12177. |
| APA | Li, Congling,Wei, Yujie,Shi, Xinghua,Li CL,Shi XH,&Wei YJ.(2015).Reformation Capability of Short-Range Order and Their Medium-Range Connections Regulates Deformability of Bulk Metallic Glasses.SCIENTIFIC REPORTS,5,12177. |
| MLA | Li, Congling,et al."Reformation Capability of Short-Range Order and Their Medium-Range Connections Regulates Deformability of Bulk Metallic Glasses".SCIENTIFIC REPORTS 5(2015):12177. |
入库方式： OAI收割
来源：力学研究所
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