Influence of Annealing on Microstructure and Tensile Properties of Electron Beam Weldment of Powder Metallurgy Ti2AlNb Alloy
文献类型：期刊论文
| 作者 | Yin, Xuchen1,2; Chen, Zhiyong3; Wang, Qingjiang3; Liu, Jianrong3; Li, Wenhui1; Deng, Hao2; Luo, Hengjun2 |
| 刊名 | RARE METAL MATERIALS AND ENGINEERING
 |
| 出版日期 | 2024-08-01 |
| 卷号 | 53期号:8页码:2293-2300 |
| 关键词 | powder metallurgy Ti2AlNb alloy electron beam weldment annealing treatment microstructure tensile property |
| ISSN号 | 1002-185X |
| DOI | 10.12442/j.issn.1002-185X.20230423 |
| 通讯作者 | Wang, Qingjiang(qjwang@imr.ac.cn) |
| 英文摘要 | Annealing treatment in the temperature range of 800-900 degrees C was applied to the electron beam weldments of powder metallurgy Ti2AlNb alloys to investigate its influence on microstructure and tensile properties at room temperature and 650 degrees C. The results show that there are coarse columnar and equiaxed B2 grains in the fusion zone (FZ) in the as-welded weldments. Transformation from B2 phase to O+B2 phase occurs in the FZ during the post-weld annealing treatments. The morphology of the O phase is characterized as the basket-weave structure and the size of the O phase plate increases with the increase in the annealing temperature. The microhardness of the FZ of the as-welded weldments is higher than that in the base metal (BM). After the annealing treatments, the microhardness in the FZ increases significantly, which gradually decreases with the increase in annealing temperature. At room temperature, all tensile specimens are fractured at the FZ. The tensile strength of the as-welded weldments is close to that of the BM and local large plastic deformation occurs in the FZ. However, the strength and ductility of the weldments decrease slightly after the post-weld annealing treatment. At 650 degrees C, most of the tensile specimens are fractured at the FZ. The as-welded weldments are failured at the FZ, suggesting the brittle intergranular fracture. After the annealing treatments, there is an apparent improvement in strength of the FZ in the weldments. With the annealing temperature increasing up to 900 degrees C, the failure locations are shifted from the FZ to the BM. |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001320375700004 |
| 出版者 | NORTHWEST INST NONFERROUS METAL RESEARCH |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wang, Qingjiang |
| 作者单位 | 1.Taiyuan Univ Technol, Coll Aeronaut & Astronaut, Taiyuan 030024, Peoples R China 2.China Natl Erzhong Grp Deyang Wanhang Die Forging, Deyang 618000, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yin, Xuchen,Chen, Zhiyong,Wang, Qingjiang,et al. Influence of Annealing on Microstructure and Tensile Properties of Electron Beam Weldment of Powder Metallurgy Ti2AlNb Alloy[J]. RARE METAL MATERIALS AND ENGINEERING,2024,53(8):2293-2300. |
| APA | Yin, Xuchen.,Chen, Zhiyong.,Wang, Qingjiang.,Liu, Jianrong.,Li, Wenhui.,...&Luo, Hengjun.(2024).Influence of Annealing on Microstructure and Tensile Properties of Electron Beam Weldment of Powder Metallurgy Ti2AlNb Alloy.RARE METAL MATERIALS AND ENGINEERING,53(8),2293-2300. |
| MLA | Yin, Xuchen,et al."Influence of Annealing on Microstructure and Tensile Properties of Electron Beam Weldment of Powder Metallurgy Ti2AlNb Alloy".RARE METAL MATERIALS AND ENGINEERING 53.8(2024):2293-2300. |
入库方式： OAI收割
来源：金属研究所
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