| Achieving Ultrahigh Hardness in Electrodeposited Nanograined Ni-Based Binary Alloys | |
| Zheng, Xiangui1; Hu, Jian1,2; Li, Jiongxian1; Shi, Yinong1 | |
| Corresponding Author | Shi, Yinong(yinongshi@imr.ac.cn) |
| 2019-04-01 | |
| Source Publication | NANOMATERIALS
 |
| ISSN | 2079-4991 |
| Volume | 9Issue:4Pages:11 |
| Abstract | Annealing hardening has recently been found in nanograined (ng) metals and alloys, which is ascribed to the promotion of grain boundary (GB) stability through GB relaxation and solute atom GB segregation. Annealing hardening is of great significance in extremely fine ng metals since it allows the hardness to keep increasing with a decreasing grain size which would otherwise be softened. Consequently, to synthesize extremely fine ng metals with a stable structure is crucial in achieving an ultrahigh hardness in ng metals. In the present work, direct current electrodeposition was employed to synthesize extremely fine ng Ni-Mo and Ni-P alloys with a grain size of down to a few nanometers. It is demonstrated that the grain size of the as-synthesized extremely fine ng Ni-Mo and Ni-P alloys can be as small as about 3 nm with a homogeneous structure and chemical composition. Grain size strongly depends upon the content of solute atoms (Mo and P). Most importantly, appropriate annealing induces significant hardening as high as 11 GPa in both ng Ni-Mo and Ni-P alloys, while the peak hardening temperature achieved in ng Ni-Mo is much higher than that in ng Ni-P. Electrodeposition is efficient in the synthesis of ultrahard bulk metals or coatings. |
| Keyword | electrodeposition nanograined alloy thermal stability annealing hardening hardness |
| Funding Organization | Ministry of Science & Technology of China ; National Science Foundation of China ; Shenyang National Laboratory for Materials Science |
| DOI | 10.3390/nano9040546 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Ministry of Science & Technology of China[2017YFA0204401] ; National Science Foundation of China[51231006] ; National Science Foundation of China[ZDYZD201701] ; Shenyang National Laboratory for Materials Science[2016RP05] |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| WOS ID | WOS:000467768800062 |
| Publisher | MDPI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/133368 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Shi, Yinong |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 2.East China Jiaotong Univ, Sch Mat Sci & Engn, Nanchang 330013, Jiangxi, Peoples R China |
| Recommended Citation GB/T 7714 | Zheng, Xiangui,Hu, Jian,Li, Jiongxian,et al. Achieving Ultrahigh Hardness in Electrodeposited Nanograined Ni-Based Binary Alloys[J]. NANOMATERIALS,2019,9(4):11. |
| APA | Zheng, Xiangui,Hu, Jian,Li, Jiongxian,&Shi, Yinong.(2019).Achieving Ultrahigh Hardness in Electrodeposited Nanograined Ni-Based Binary Alloys.NANOMATERIALS,9(4),11. |
| MLA | Zheng, Xiangui,et al."Achieving Ultrahigh Hardness in Electrodeposited Nanograined Ni-Based Binary Alloys".NANOMATERIALS 9.4(2019):11. |
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