| Effect of Aspect Ratio on the Deformation Behavior of Dislocation-Free Ni3Al Nanocubes | |
| Li, Peng1,2; Wang, Xinguang3; Zhou, Yizhou3; Pfetzing-Micklich, Janine2; Somsen, Christoph2; Eggeler, Gunther2 | |
| 通讯作者 | Li, Peng(pengli@ysu.edu.cn) ; Wang, Xinguang(xgwang11b@imr.ac.cn) |
| 2020-11-01 | |
| 发表期刊 | NANOMATERIALS
 |
| 卷号 | 10期号:11页码:11 |
| 摘要 | This study concentrates on several factors which govern the nanoscale plasticity of in situ compressed dislocation-free Ni3Al nanocubes: cube size, aspect ratio and the presence of grooves. The yield strength of dislocation-free Ni3Al nanocubes exhibits an apparent size dependence. The size dependence is strong when cubes are smaller than 300 nm. Compared with the strength of bulk Ni3Al single crystals, the strength of nanocubes is two orders of magnitude higher, which clearly demonstrates that there is a size effect. Nanocube plasticity strongly depends on the alignment and the shape of the cubes. Deformed aligned nanocubes either display only a few localized deformation events (slip lines) or were homogenously compressed into flats due to multiple slip dislocation-mediated plasticity. For an aligned cube, crack initiation at the intersection of a slip line with a groove in the cube surface was observed. In case of a double cube, crack initiation occurs at surface irregularities, while subsequent crack propagation occurs along one or more slip planes. |
| 关键词 | Ni3Al nanocubes Ni-base superalloy single crystals aspect ratio in situ compression dislocation free |
| 资助者 | National Key R&D Program of China (NSFC) ; Deutsche Forschungsgemeinschaft (DFG) |
| DOI | 10.3390/nano10112230 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Key R&D Program of China (NSFC)[2017YFA0700704] ; Deutsche Forschungsgemeinschaft (DFG)[SFB/TR 103] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science |
| WOS类目 | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| WOS记录号 | WOS:000593774400001 |
| 出版者 | MDPI |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/141440 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Li, Peng; Wang, Xinguang |
| 作者单位 | 1.Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Clean Nano Energy Ctr, Qinhuangdao 066004, Hebei, Peoples R China 2.Ruhr Univ Bochum, Inst Werkstoffe, D-44780 Bochum, Germany 3.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Peng,Wang, Xinguang,Zhou, Yizhou,et al. Effect of Aspect Ratio on the Deformation Behavior of Dislocation-Free Ni3Al Nanocubes[J]. NANOMATERIALS,2020,10(11):11. |
| APA | Li, Peng,Wang, Xinguang,Zhou, Yizhou,Pfetzing-Micklich, Janine,Somsen, Christoph,&Eggeler, Gunther.(2020).Effect of Aspect Ratio on the Deformation Behavior of Dislocation-Free Ni3Al Nanocubes.NANOMATERIALS,10(11),11. |
| MLA | Li, Peng,et al."Effect of Aspect Ratio on the Deformation Behavior of Dislocation-Free Ni3Al Nanocubes".NANOMATERIALS 10.11(2020):11. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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