Ultrafine grained metastable Ti6Al4V5Cu alloy with high strength and excellent low-cycle fatigue property
文献类型：期刊论文
| 作者 | Song, Wei1,2; Wang, Hai2; Li, Yi1,2; Zhang, Shuyuan2; Ren, Ling2; Yang, Ke2 |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2022-12-01 |
| 卷号 | 129页码:240-250 |
| ISSN号 | 1005-0302 |
| 关键词 | Transformation induced plasticity Ti alloys Low-cycle fatigue Work hardening Crack propagation |
| DOI | 10.1016/j.jmst.2022.05.007 |
| 通讯作者 | Ren, Ling(lren@imr.ac.cn) |
| 英文摘要 | The insufficient low-cycle fatigue properties of titanium alloys under cyclic heavy loading are regarded as a challenge for their security in service. In recent years, a large number of studies have found that the transformation induced plasticity (TRIP) effect could hinder the propagation of fatigue cracks, which significantly improved the low-cycle fatigue properties of titanium alloys. However, the coarse beta-phase grains and the soft phase transformation product a alpha '' phase in TRIP titanium alloys impair their tensile strength, which restrict their applications in engineering. To this end, a Ti6Al4V5Cu alloy with TRIP effect was developed in this work. It was proposed to use the mutual restraint between the alpha and beta-phases in the material to refine the grains, and through composition optimization, the phase transformation product would be the alpha' phase, which has a higher strength than the a alpha '' phase. Thus, the strength of the Ti6Al4V5Cu alloy can be improved. The results showed that the tensile strength and elongation of the TRIP Ti6Al4V5Cu alloy was 1286 MPa and 22%, which was 23.7% and 46.7% higher than that of the traditional Ti6Al4V alloy, respectively. Besides, under the same strain amplitude, the fatigue life of the Ti6Al4V5Cu alloy was 2-5 times longer than that of the Ti6Al4V alloy. Furthermore, we clarified the mechanisms of improving the tensile strength and fatigue properties of the Ti6Al4V5Cu alloy, which would lay a research foundation for the development of high-performance titanium alloys. (C) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 资助项目 | National Key Research and Development Program of China[2018YFC1106600] ; Natural Science Foundation of China[51631009] ; Liaoning Revitalization Talents Program[XLYC1807069] ; Doctoral Scientific Research Foundation of Liaoning Province[2020BS002] ; Binzhou Weiqiao Guoke Institute of Advanced Technology |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 出版者 | JOURNAL MATER SCI TECHNOL |
| WOS记录号 | WOS:000810926900009 |
| 资助机构 | National Key Research and Development Program of China ; Natural Science Foundation of China ; Liaoning Revitalization Talents Program ; Doctoral Scientific Research Foundation of Liaoning Province ; Binzhou Weiqiao Guoke Institute of Advanced Technology |
| 源URL | [http://ir.imr.ac.cn/handle/321006/174362]  |
| 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.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Wei,Wang, Hai,Li, Yi,et al. Ultrafine grained metastable Ti6Al4V5Cu alloy with high strength and excellent low-cycle fatigue property[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2022,129:240-250. |
| APA | Song, Wei,Wang, Hai,Li, Yi,Zhang, Shuyuan,Ren, Ling,&Yang, Ke.(2022).Ultrafine grained metastable Ti6Al4V5Cu alloy with high strength and excellent low-cycle fatigue property.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,129,240-250. |
| MLA | Song, Wei,et al."Ultrafine grained metastable Ti6Al4V5Cu alloy with high strength and excellent low-cycle fatigue property".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 129(2022):240-250. |
入库方式： OAI收割
来源：金属研究所
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