Enhanced Mechanical Properties in Bulk Nanograined Ni with High-Density Fivefold Twins
文献类型：期刊论文
| 作者 | Wang, Yujue1,2; Zhou, Xin3; Lu, Yang4; Li, Xiuyan1,5 |
| 刊名 | SMALL
 |
| 出版日期 | 2025-01-23 |
| 页码 | 9 |
| 关键词 | fivefold twins nanograined Ni partial dislocation strain hardening |
| ISSN号 | 1613-6810 |
| DOI | 10.1002/smll.202410202 |
| 通讯作者 | Lu, Yang(ylu1@hku.hk) ; Li, Xiuyan(xyli@imr.ac.cn) |
| 英文摘要 | Fivefold twins are extensively present in nanoparticles and nanowires, enhancing their performance in physical, chemical, and mechanical properties. However, a deep insight into the correlation between mechanical properties and fivefold twins in bulk nanograined materials is lacking due to synthesis difficulties. Here, a bulk fivefold-twinned nanograined Ni is synthesized via electrodeposition. The fivefold-twinned nanograins typically feature decahedral and icosahedral shapes similar to fivefold-twinned particles. The material exhibits a yield strength of approximate to 1.7 GPa under both compression and tension. Tensile samples achieve an ultimate strength of 2.15 GPa with 15% elongation to failure. The plastic deformation is accommodated by partial dislocation sliding on twin boundaries, splitting fivefold twins, and abnormally refining grains. The size dependence of nucleation stress for partial dislocation is responsible for strengthening and strain hardening. The results showcase the potential of incorporating fivefold twins into bulk nanocrystalline materials to tailor mechanical properties and applications across diverse fields. |
| 资助项目 | National Natural Science Foundation of China ; Chinese Academy of Sciences[XDB0510000] ; Hong Kong RGC General Research Fund[11200623] ; Hong Kong Collaborative Research Fund[C7074-23G] ; Alexander von Humboldt-Stiftung Foundation ; [52225102] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001402546400001 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 资助机构 | National Natural Science Foundation of China ; Chinese Academy of Sciences ; Hong Kong RGC General Research Fund ; Hong Kong Collaborative Research Fund ; Alexander von Humboldt-Stiftung Foundation |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Lu, Yang; Li, Xiuyan |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Munster, Inst Mat Phys, Wilhelm Klemm Str 10, D-48149 Munster, Germany 3.Univ Munster, Inst Phys, Wilhelm Klemm Str 10, D-48149 Munster, Germany 4.Univ Hong Kong, Dept Mech Engn, Pokfulam, Hong Kong 999077, Peoples R China 5.Liaoning Acad Mat, 280 Chuangxin Rd, Shenyang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yujue,Zhou, Xin,Lu, Yang,et al. Enhanced Mechanical Properties in Bulk Nanograined Ni with High-Density Fivefold Twins[J]. SMALL,2025:9. |
| APA | Wang, Yujue,Zhou, Xin,Lu, Yang,&Li, Xiuyan.(2025).Enhanced Mechanical Properties in Bulk Nanograined Ni with High-Density Fivefold Twins.SMALL,9. |
| MLA | Wang, Yujue,et al."Enhanced Mechanical Properties in Bulk Nanograined Ni with High-Density Fivefold Twins".SMALL (2025):9. |
入库方式： OAI收割
来源：金属研究所
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