Balancing strength and ductility of cylindrical-shaped Cu64Zr36 nanoglass via embedded Cu nanocrystals
文献类型：期刊论文
| 作者 | Cai, B.2; Wang, D.2 ; Gao, N.1,3,4; Li, J. H.2; Lai, W. S.2; Liu, J. B.2; Liu, B. X.2
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| 刊名 | JOURNAL OF NON-CRYSTALLINE SOLIDS
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| 出版日期 | 2020-09-15 |
| 卷号 | 544页码:6 |
| 关键词 | Nanoglass/crystalline composite Tension High-strength Large-ductility Molecular dynamic simulation |
| ISSN号 | 0022-3093 |
| DOI | 10.1016/j.jnoncrysol.2020.120211 |
| 通讯作者 | Liu, J. B.(jbliu@mail.tsinghua.edu.cn) |
| 英文摘要 | Large-plasticity can be realized in nanoglass at the expense of strength, and such a loss can be compensated by embedding stronger nanocrystals. Here, the effects of average grain size (D-average) and volume fraction of nanocrystalline (phi) on deformation behaviors of cylindrical-shaped Cu64Zr36 nanoglass/crystalline Cu composites (NGCCs) are investigated by molecular dynamics simulations of tensile loading. Our results reveal that the necking behavior of NGCCs persistently starts from the glass grains, followed by the glass fracture. In particular, there exists a critical D-average of 7.96 nm, which is related to the diameter of nanowires. With D-average larger than the critical value, NGCCs are more likely to achieve both high-strength and large-ductility in comparison with their NG counterparts. It also confirms the significance of the surface effect on stretching NGCC nanowires. As the volume fraction of the Cu nanograins increases, the peak stress of NGCCs increases while the ductility decreases. Therefore, the tweaking of appropriate D-average and phi makes it possible to overcome the long-term strength-ductility trade-off dilemma. |
| WOS关键词 | GLASS MATRIX COMPOSITES ; METALLIC GLASSES ; DEFORMATION-BEHAVIOR ; SHEAR BANDS ; PLASTICITY ; DESIGN |
| 资助项目 | National Key Research and Development Program of China[2017YFB0702301] ; National Key Research and Development Program of China[2017YFB0702201] ; National Key Research and Development Program of China[2017YFB0702401] ; National Natural Science Foundation of China[51631005] ; Administration of Tsinghua University |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000558085500037 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Administration of Tsinghua University |
| 源URL | [http://119.78.100.186/handle/113462/140163]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Liu, J. B. |
| 作者单位 | 1.ShanDong Univ, Key Lab Particle Phys & Particle Irradiat MOE, Qingdao 266237, Peoples R China 2.Tsinghua Univ, Sch Mat Sci & Engn, Key Lab Adv Mat MOE, Beijing 100084, Peoples R China 3.ShanDong Univ, Inst Frontier & Interdisciplinary Sci, Qingdao 266237, Peoples R China 4.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cai, B.,Wang, D.,Gao, N.,et al. Balancing strength and ductility of cylindrical-shaped Cu64Zr36 nanoglass via embedded Cu nanocrystals[J]. JOURNAL OF NON-CRYSTALLINE SOLIDS,2020,544:6. |
| APA | Cai, B..,Wang, D..,Gao, N..,Li, J. H..,Lai, W. S..,...&Liu, B. X..(2020).Balancing strength and ductility of cylindrical-shaped Cu64Zr36 nanoglass via embedded Cu nanocrystals.JOURNAL OF NON-CRYSTALLINE SOLIDS,544,6. |
| MLA | Cai, B.,et al."Balancing strength and ductility of cylindrical-shaped Cu64Zr36 nanoglass via embedded Cu nanocrystals".JOURNAL OF NON-CRYSTALLINE SOLIDS 544(2020):6. |
入库方式： OAI收割
来源：近代物理研究所
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