Transformation behavior of ω/α" precipitates during aging and their influences on tensile properties in Ti-3Al-5Mo-4.5 V alloy
文献类型：期刊论文
| 作者 | Jia, Yandi1,2; Ma, Yingjie1,2,3; Chen, Song2; Yang, Yujing1,2; Wang, Qian2; Huang, Sensen2; Qi, Min2; Lei, Jiafeng1,2; Yang, Rui1,2 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2024-12-15 |
| 卷号 | 1008页码:8 |
| 关键词 | omega particles Secondary alpha plates Phase transformation Titanium alloys alpha '' phase |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2024.176526 |
| 通讯作者 | Ma, Yingjie(yjma@imr.ac.cn) |
| 英文摘要 | The metastable omega and alpha '' '' in titanium alloys have a significant impact on the subsequent alpha precipitates and the final mechanical properties. Herein, the microstructure transformation of coexisting omega/alpha '' '' during aging and their effects on tensile properties have been systematically investigated in Ti-3Al-5Mo-4.5 V (wt%) alpha/beta titanium alloy. The results demonstrate that the secondary phase within the beta-transformed (beta trans)grain trans ) grain evolves from embryonic omega + alpha '' '' to isothermal omega + alpha '', '' , and ultimately transforms to secondary alpha (alpha s) s ) with the aging temperature ascending from 300 degrees C to 550 degrees C. As embryonic omega transforms to isothermal omega, the yield strength increases from 1130.0 +/- 14 MPa to 1259.5 +/- 5.5 MPa with weak elongation due to the excellent strengthen effect of undeformed isothermal omega. After aging at 550 degrees C, coexisting micron-scale alpha p p and nanoscale alpha s s microstructures lead to enhanced elongation (increase by 93.7 %), sacrificing only 21.7 % yield strength. Both a > and dislocations are simultaneously presented in micron-scale alpha p p grain, while nanoscale alpha s s plates act as effective obstacles for dislocation motion resulting in accumulation of dense dislocations near the beta/alpha sinterfaces. s interfaces. This work provides new insights on strengthening strategy and developing new Ti-alloys. |
| 资助项目 | National Key Research and Development Program of China[2021YFC2801801] ; Natural Science Foundation of China[112106215] ; CAS Project for Young Scientists in Basic Research[YSBR-025] ; Youth Innovation Promotion Association CAS |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001318880900001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Key Research and Development Program of China ; Natural Science Foundation of China ; CAS Project for Young Scientists in Basic Research ; Youth Innovation Promotion Association CAS |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Ma, Yingjie |
| 作者单位 | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, Wenhua Rd 72, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Wenhua Rd 72, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Wenhua Rd 72, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jia, Yandi,Ma, Yingjie,Chen, Song,et al. Transformation behavior of ω/α" precipitates during aging and their influences on tensile properties in Ti-3Al-5Mo-4.5 V alloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2024,1008:8. |
| APA | Jia, Yandi.,Ma, Yingjie.,Chen, Song.,Yang, Yujing.,Wang, Qian.,...&Yang, Rui.(2024).Transformation behavior of ω/α" precipitates during aging and their influences on tensile properties in Ti-3Al-5Mo-4.5 V alloy.JOURNAL OF ALLOYS AND COMPOUNDS,1008,8. |
| MLA | Jia, Yandi,et al."Transformation behavior of ω/α" precipitates during aging and their influences on tensile properties in Ti-3Al-5Mo-4.5 V alloy".JOURNAL OF ALLOYS AND COMPOUNDS 1008(2024):8. |
入库方式： OAI收割
来源：金属研究所
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