| Extraordinary superplasticity at low homologous temperature and high strain rate enabled by a multiphase nanocrystalline network | |
| Wang, Hai1; Koenigsmann, Konrad4; Zhang, Shuyuan1; Li, Yi1,2; Liu, Huan1,2; Liu, Hui1; Ren, Ling1,5; Qiu, Dong3; Yang, Ke1 | |
| Corresponding Author | Ren, Ling(lren@imr.ac.cn) ; Qiu, Dong(dong.qiu2@rmit.edu.au) |
| 2023-09-01 | |
| Source Publication | INTERNATIONAL JOURNAL OF PLASTICITY
 |
| ISSN | 0749-6419 |
| Volume | 168Pages:11 |
| Abstract | Superplasticity is a highly sought-after property of components manufactured with complex ge-ometries in metal forming processes. However, superplasticity usually occurs at high tempera-tures and/or low strain rates, which entails high energy consumption, long processing time, and severe surface oxidation. Herein, we have developed a multiphase nanocrystalline network (MPNN) in a Ti6Al4V5Cu model alloy, where the grain boundary & beta; phases promote the sliding and rotation of ultrafine & alpha; grains, while the nanosized Ti2Cu particles pin down the & alpha;/& beta; bound-aries to maintain the thermostability of the nanostructure. Results show that the onset temper-ature for superplasticity of the model alloy is 250 degrees C lower than that of the Ti6Al4V alloy at the strain rate of 10-4 s-1. Remarkably, superplasticity was also observed at an extremely high strain rate of 1 s -1 at 750 degrees C, which is 2-4 orders of magnitude larger than conventional superplastic metals. The present work is of great significance in developing more economical and efficient superplastic deformation processes. |
| Keyword | Superplasticity In-situ observation Thermostability Nanocrystalline |
| Funding Organization | National Key Research and Development Program of China ; Bintech-IMR R amp; D Program ; IMR Innovation Fund ; Natural Science Foundation of Liaoning |
| DOI | 10.1016/j.ijplas.2023.103694 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China[2022YFC2406003] ; National Key Research and Development Program of China[2022YFC2406001] ; Bintech-IMR R amp; D Program[GYY-JSBU-2022-008] ; IMR Innovation Fund[2023-PY06] ; Natural Science Foundation of Liaoning[2023-MS-022] |
| WOS Research Area | Engineering ; Materials Science ; Mechanics |
| WOS Subject | Engineering, Mechanical ; Materials Science, Multidisciplinary ; Mechanics |
| WOS ID | WOS:001036844500001 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/178760 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Ren, Ling; Qiu, Dong |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, Shenyang, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Peoples R China 3.RMIT Univ, Ctr Addit Mfg, Sch Engn, Melbourne, Vic, Australia 4.Univ Chicago, Chicago, IL 60637 USA 5.Binzhou Inst Technol, Shandong Key Lab Adv Aluminium Mat & Technol, Weiqiao UCAS Sci & Technol Pk, Binzhou 256606, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Hai,Koenigsmann, Konrad,Zhang, Shuyuan,et al. Extraordinary superplasticity at low homologous temperature and high strain rate enabled by a multiphase nanocrystalline network[J]. INTERNATIONAL JOURNAL OF PLASTICITY,2023,168:11. |
| APA | Wang, Hai.,Koenigsmann, Konrad.,Zhang, Shuyuan.,Li, Yi.,Liu, Huan.,...&Yang, Ke.(2023).Extraordinary superplasticity at low homologous temperature and high strain rate enabled by a multiphase nanocrystalline network.INTERNATIONAL JOURNAL OF PLASTICITY,168,11. |
| MLA | Wang, Hai,et al."Extraordinary superplasticity at low homologous temperature and high strain rate enabled by a multiphase nanocrystalline network".INTERNATIONAL JOURNAL OF PLASTICITY 168(2023):11. |
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