Atomic faulting induced exceptional cryogenic strain hardening in gradient cell-structured alloy
文献类型：期刊论文
| 作者 | Pan, Qingsong; Yang MX(杨沐鑫) ; Feng, Rui; Chuang, Andrew Chihpin; An, Ke; Liaw, Peter K.; Wu XL(武晓雷); Tao, Nairong; Lu, Lei
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| 刊名 | SCIENCE
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| 出版日期 | 2023-10-13 |
| 卷号 | 382期号:6667页码:185-190 |
| ISSN号 | 0036-8075 |
| DOI | 10.1126/science.adj3974 |
| 英文摘要 | Coarse-grained materials are widely accepted to display the highest strain hardening and the best tensile ductility. We experimentally report an attractive strain hardening rate throughout the deformation stage at 77 kelvin in a stable single-phase alloy with gradient dislocation cells that even surpasses its coarse-grained counterparts. Contrary to conventional understanding, the exceptional strain hardening arises from a distinctive dynamic structural refinement mechanism facilitated by the emission and motion of massive multiorientational tiny stacking faults (planar defects), which are fundamentally distinct from the traditional linear dislocation-mediated deformation. The dominance of atomic-scale planar deformation faulting in plastic deformation introduces a different approach for strengthening and hardening metallic materials, offering promising properties and potential applications. |
| 分类号 | 一类 |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001112161200028 |
| 资助机构 | National Science Foundation of China (NSFC) [51931010, 92163202, 52122104, 52071321] ; Key Research Program of Frontier Science and International partnership program [GJHZ2029] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences (CAS) [2019196] ; National Science Foundation [DMR-1611180, 1809640, 2226508] ; US Army Research Office [W911NF-13-1-0438, W911NF-19-2-0049] ; Material Engineering Initiative (MEI) at the Spallation Neutron Source (SNS), Oak Ridge National Laboratory ; NSFC [52071326] ; DOE Office of Science [DE-AC02-06CH11357] |
| 其他责任者 | Lu, L (corresponding author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China. |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/95120]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Pan, Qingsong,Yang MX,Feng, Rui,et al. Atomic faulting induced exceptional cryogenic strain hardening in gradient cell-structured alloy[J]. SCIENCE,2023,382(6667):185-190. |
| APA | Pan, Qingsong.,杨沐鑫.,Feng, Rui.,Chuang, Andrew Chihpin.,An, Ke.,...&Lu, Lei.(2023).Atomic faulting induced exceptional cryogenic strain hardening in gradient cell-structured alloy.SCIENCE,382(6667),185-190. |
| MLA | Pan, Qingsong,et al."Atomic faulting induced exceptional cryogenic strain hardening in gradient cell-structured alloy".SCIENCE 382.6667(2023):185-190. |
入库方式： OAI收割
来源：力学研究所
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