| Biomedical core-shell micro-nanocrystalline Ti6Al4V5Cu alloy with high fatigue properties | |
| Song, Wei1,2,3; Wang, Hai1; Koenigsmann, Konrad4; Zhang, Shuyuan1; Ren, Ling1,5; Yang, Ke1 | |
| 通讯作者 | Ren, Ling(lren@imr.ac.cn) |
| 2023-03-01 | |
| 发表期刊 | MATERIALS & DESIGN
 |
| ISSN | 0264-1275 |
| 卷号 | 227页码:13 |
| 摘要 | Fatigue strength is one of the most important indicators used to evaluate titanium alloy orthopedic implants. Sufficient fatigue strength can enhance the reliability of orthopedic implants. It is well known that grain refinement is beneficial to enhancing material strength but against fatigue resistance. This work has fabricated a triple-phase core-shell micro-nanostructure in a biomedical Ti6Al4V5Cu alloy with the ultrafine grained a phase stabilized by the nanoscale conjugated b/Ti2Cu shells, of which results in a high fatigue resistance. The results show that the average grain size of the a, b, and Ti2Cu phases are 585 nm, 421 nm and 135 nm, respectively. The soft b phases in the conjugated b/Ti2Cu shells can produce a plastic zone at the crack tip to hinder the propagation of fatigue cracks. The fatigue strength of the core- shell structured Ti6Al4V5Cu alloy is 750 MPa under the experimental condition of R = -1 andNf = 107, which is 36.3 % higher than the widely used Ti6Al4V alloy. The mechanisms for improving the fatigue properties have also been discussed. These are of great significance for the development of a new generation of high fatigue strength titanium alloys. CO 2023 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
| 关键词 | Micro-nanostructured Core-shell structure Fatigue Microstructural thermostability |
| 资助者 | National Key Research and Development Program of China ; Bintech-IMR RD Program |
| DOI | 10.1016/j.matdes.2023.111769 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Key Research and Development Program of China[2018YFC1106600] ; Bintech-IMR RD Program[GYY-JSBU-2022-008] |
| WOS研究方向 | Materials Science |
| WOS类目 | Materials Science, Multidisciplinary |
| WOS记录号 | WOS:000991276600001 |
| 出版者 | ELSEVIER SCI LTD |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/178097 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Ren, Ling |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Sino Precious Met Holding Co Ltd, Yunnan Precious Met Lab Co Ltd, Kunming, Peoples R China 4.Univ Chicago, Chicago, IL 60637 USA 5.Binzhou Inst Technol, Shandong Key Lab Adv Aluminum Mat & Technol, Binzhou 256606, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Wei,Wang, Hai,Koenigsmann, Konrad,et al. Biomedical core-shell micro-nanocrystalline Ti6Al4V5Cu alloy with high fatigue properties[J]. MATERIALS & DESIGN,2023,227:13. |
| APA | Song, Wei,Wang, Hai,Koenigsmann, Konrad,Zhang, Shuyuan,Ren, Ling,&Yang, Ke.(2023).Biomedical core-shell micro-nanocrystalline Ti6Al4V5Cu alloy with high fatigue properties.MATERIALS & DESIGN,227,13. |
| MLA | Song, Wei,et al."Biomedical core-shell micro-nanocrystalline Ti6Al4V5Cu alloy with high fatigue properties".MATERIALS & DESIGN 227(2023):13. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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