Ultrafine-grained Ti6Al7Nb-xCu alloy with ultrahigh strength and exceptional biomedical properties
文献类型：期刊论文
| 作者 | Li, Yi2,3; Wang, Hai2; Koenigsmann, Konrad4; Liu, Hui2; Zhang, Shuyuan2; Ren, Ling1,2; Yang, Ke2 |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2023-11-20 |
| 卷号 | 164页码:68-78 |
| 关键词 | High strength titanium alloy Ultrafine grain Antibacterial Dynamic recrystallization |
| ISSN号 | 1005-0302 |
| DOI | 10.1016/j.jmst.2023.04.035 |
| 通讯作者 | Ren, Ling(lren@imr.ac.cn) |
| 英文摘要 | Grain refinement has been found to be able to improve the strength of metals without reducing their plasticity or ductility. In this work, ultrafine-grained Ti6Al7Nb-xCu (x = 0, 3 wt%, 6 wt%, 9 wt%) alloys were fabricated based on the clinically used Ti6Al7Nb alloy via Cu alloying fabrication strategy combined with dynamic recrystallization (DRX) from martensite during hot work. Our results indicate that Cu alloy-ing is not only effective in reducing the width of martensite laths after quenching in the & beta; phase region but also increases the nucleation rate of DRX during the high-temperature deformation. Additionally, the Ti2Cu phase that precipitates from the matrix can pin the grain boundaries and inhibit their growth dur -ing the high-temperature deformation. The optimal Cu concentration of Ti6Al7Nb-xCu alloy is determined to be 6 wt%, and the optimal deformation temperature is determined to be 750 & DEG;C. At this Cu content and deformation temperature, the grain size is only 270 nm, the tensile strength is up to 1266 & PLUSMN;10 MPa, and the elongation is 17%. Compared with the commercial Ti6Al7Nb alloy, the ultrafine-grained Ti6Al7Nb-6Cu alloy has better overall mechanical properties, good biocompatibility, and unique antibacterial properties. This work provides a theoretical basis for fabricating the new antibacterial titanium-based alloys with high strength. & COPY; 2023 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 资助项目 | National Key Re- search and Development Program of China[2022YFC2406003] ; Bintech-IMR Ramp;D Program[GYY-JSBU-2022-008] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001022421500001 |
| 出版者 | JOURNAL MATER SCI TECHNOL |
| 资助机构 | National Key Re- search and Development Program of China ; Bintech-IMR Ramp;D Program |
| 源URL | [http://ir.imr.ac.cn/handle/321006/178414]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Ren, Ling |
| 作者单位 | 1.Binzhou Inst Technol, Shandong Key Lab Adv Aluminum Mat & Technol, Binzhou 256606, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 4.Univ Chicago, Chicago, IL 60637 USA |
| 推荐引用方式 GB/T 7714 | Li, Yi,Wang, Hai,Koenigsmann, Konrad,et al. Ultrafine-grained Ti6Al7Nb-xCu alloy with ultrahigh strength and exceptional biomedical properties[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2023,164:68-78. |
| APA | Li, Yi.,Wang, Hai.,Koenigsmann, Konrad.,Liu, Hui.,Zhang, Shuyuan.,...&Yang, Ke.(2023).Ultrafine-grained Ti6Al7Nb-xCu alloy with ultrahigh strength and exceptional biomedical properties.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,164,68-78. |
| MLA | Li, Yi,et al."Ultrafine-grained Ti6Al7Nb-xCu alloy with ultrahigh strength and exceptional biomedical properties".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 164(2023):68-78. |
入库方式： OAI收割
来源：金属研究所
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