| 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 | |
| Corresponding Author | Li, Peng(pengli@ysu.edu.cn) ; Wang, Xinguang(xgwang11b@imr.ac.cn) |
| 2020-11-01 | |
| Source Publication | NANOMATERIALS
 |
| Volume | 10Issue:11Pages:11 |
| Abstract | 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. |
| Keyword | Ni3Al nanocubes Ni-base superalloy single crystals aspect ratio in situ compression dislocation free |
| Funding Organization | National Key R&D Program of China (NSFC) ; Deutsche Forschungsgemeinschaft (DFG) |
| DOI | 10.3390/nano10112230 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key R&D Program of China (NSFC)[2017YFA0700704] ; Deutsche Forschungsgemeinschaft (DFG)[SFB/TR 103] |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| WOS ID | WOS:000593774400001 |
| Publisher | MDPI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/141438 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Li, Peng; Wang, Xinguang |
| Affiliation | 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 |
| Recommended Citation 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. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment