Internal tensile properties of characteristic zones in the electron beam weldment of TC17 titanium alloy
文献类型：期刊论文
| 作者 | Xua, C.3,4; Liuc, H. Q.1; Li, C. H.4; Yanga, H. J.2,3; Shao, X. H.3,4; Ma, X. L.3,4 |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2023-06-06 |
| 卷号 | 875页码:9 |
| 关键词 | TC17 titanium alloy Electron beam welding In situ SEM Ghost structure Mechanical properties |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2023.145087 |
| 通讯作者 | Shao, X. H.(xhshao@imr.ac.cn) |
| 英文摘要 | The internal tensile deformation of the individual base metal zone (BM), heat-affected zone (HAZ), and fusion zone (FZ) in a titanium alloy (Ti-5Al-2Sn-2r-4Mo-4Cr, wt.%) electron beam welding (EBW) joint is investigated. The ultimate strength of BM with a bimodal microstructure is 1047.5 MPa, and the elongation to fracture is 9.8%. HAZ is distinguished by the formation of a ghost structure with a hierarchical cluster structure within the initial & alpha;P grains, while the embedded & alpha;s laths dissolve in the matrix and relatively coarsening & beta; grains are generated. During tension, the ghost structures strongly inhibit and deflect slip initiation and extension in the relatively coarsening & beta; matrix. The competitive balance between strengthening from the ghost structure and weakening from the coarsening matrix dominates the mechanical properties of the HAZ, which then induces a hybrid fracture. The needle-shaped thermal martensite that formed during EBW causes the FZ to fail prematurely. The microstructural evolution of HAZ and FZ decreases their mechanical properties. This research may shed some light on the mechanical enhancement of titanium alloys by utilizing the multiple & alpha;L laths precipitated within the initial & alpha;P structure associated with the bimodal matrix. |
| 资助项目 | National Natural Science Foundation of China[52171021] ; National Natural Science Foundation of China[51871222] ; Japan Society for the Promotion of Science[P20737] ; Natural Science Foundation of Liaoning Province[2023-MS-018] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001039894700001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Natural Science Foundation of China ; Japan Society for the Promotion of Science ; Natural Science Foundation of Liaoning Province |
| 源URL | [http://ir.imr.ac.cn/handle/321006/178735]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Shao, X. H. |
| 作者单位 | 1.Kyushu Univ, Dept Mech Engn, Fukuoka 8190395, Japan 2.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xua, C.,Liuc, H. Q.,Li, C. H.,et al. Internal tensile properties of characteristic zones in the electron beam weldment of TC17 titanium alloy[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2023,875:9. |
| APA | Xua, C.,Liuc, H. Q.,Li, C. H.,Yanga, H. J.,Shao, X. H.,&Ma, X. L..(2023).Internal tensile properties of characteristic zones in the electron beam weldment of TC17 titanium alloy.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,875,9. |
| MLA | Xua, C.,et al."Internal tensile properties of characteristic zones in the electron beam weldment of TC17 titanium alloy".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 875(2023):9. |
入库方式： OAI收割
来源：金属研究所
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