Inhomogeneity Analyses of Microstructure and Mechanical Properties of TC21 Titanium Alloy Variable Cross-section Die Forgings for Aviation
文献类型：期刊论文
| 作者 | Yang Jie1,2; Huang Sensen2; Yin Hui3; Zhai Ruizhi3; Ma Yingjie1,2; Xiang Wei3; Luo Hengjun3; Lei Jiafeng1,2; Yang Rui1,2 |
| 刊名 | ACTA METALLURGICA SINICA
 |
| 出版日期 | 2024-03-01 |
| 卷号 | 60期号:3页码:333-347 |
| 关键词 | TC21 titanium alloy die forging effective strain texture mechanical property |
| ISSN号 | 0412-1961 |
| DOI | 10.11900/0412.1961.2022.00313 |
| 通讯作者 | Ma Yingjie(yjma@imr.ac.cn) |
| 英文摘要 | TC21 titanium alloy has been successfully used in the structural die forgings of aviation owing to its excellent damage tolerance. However, because of the difference in the equivalent strains of die forgings, the microstructure and properties of variable cross-sections are considerably different, affecting the service life of the structural parts. Therefore, the microstructure and mechanical properties of beta -forged TC21 titanium alloy die forgings with variable cross-sections were characterized using Deform software simulation, OM, SEM, XRD, EBSD, and tensile and impact tests, and the primary factors affecting the tensile and impact properties as well as their anisotropy were comprehensively analyzed. The results showed that the overall shape of the die forgings was complex and the effective strain was concentrated in the range of 0.75-1.20. The evidence of the flow was obvious at high strain, the substructure increased, and the narrow cross-section led to a faster cooling rate. This resulted in the decrease of a p content and refinement of a s, which together led to the increase in strength. The evolution of various texture components under high strain during thermal deformation and heat treatment was analyzed, and finally the strong texture of residual beta phase < 110 >//LD and {0002} weak texture of transformed a phase were formed. The strength anisotropy caused by the strong texture was analyzed from a phase slip system and beta phase densely packed plane. The impact load-displacement curves showed that the impact energy was mainly consumed via the initiation energy. Combining with the prior b grain arrangement, the fracture modes of impact and tensile fracture in different orientations were discussed. Finally, a tensile fracture model was proposed, which explained the reason that there was a good strength and plastic matching at a high strain of 1.20. This work provides material research support for optimizing the uniformity design of TC21 alloy variable cross-section die forgings. |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001193645500006 |
| 出版者 | SCIENCE PRESS |
| 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, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 3.Deyang Wanhang Die Forging Co Ltd, China Natl Erzhong Grp, Deyang 618000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang Jie,Huang Sensen,Yin Hui,et al. Inhomogeneity Analyses of Microstructure and Mechanical Properties of TC21 Titanium Alloy Variable Cross-section Die Forgings for Aviation[J]. ACTA METALLURGICA SINICA,2024,60(3):333-347. |
| APA | Yang Jie.,Huang Sensen.,Yin Hui.,Zhai Ruizhi.,Ma Yingjie.,...&Yang Rui.(2024).Inhomogeneity Analyses of Microstructure and Mechanical Properties of TC21 Titanium Alloy Variable Cross-section Die Forgings for Aviation.ACTA METALLURGICA SINICA,60(3),333-347. |
| MLA | Yang Jie,et al."Inhomogeneity Analyses of Microstructure and Mechanical Properties of TC21 Titanium Alloy Variable Cross-section Die Forgings for Aviation".ACTA METALLURGICA SINICA 60.3(2024):333-347. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。