Realizing deep penetration and superior mechanical properties in a titanium alloy thick plate joint via vacuum laser beam welding
文献类型：期刊论文
| 作者 | Li, F. S.2,3; Wu, L. H.1,2,3; Zhao, H. B.2,3; Xue, P.1,2,3; Ni, D. R.2,3; Xiao, B. L.2,3; Ma, Z. Y.2,3 |
| 刊名 | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
 |
| 出版日期 | 2023-09-01 |
| 卷号 | 26页码:2254-2264 |
| 关键词 | Titanium alloys Vacuum laser beam welding Microstructure Mechanical properties |
| ISSN号 | 2238-7854 |
| DOI | 10.1016/j.jmrt.2023.08.059 |
| 通讯作者 | Wu, L. H.(lhwu@imr.ac.cn) ; Ni, D. R.(drni@imr.ac.cn) |
| 英文摘要 | It is usually very difficult for achieving deep penetration in titanium alloy thick plates by conventional laser beam welding (LBW) under the atmospheric environment, since the laser beam energy is easily dissipated in air. In this study, LBW in a low vacuum environment (100 Pa) was proposed to realize the deep weld penetration of 16 mm of Ti-6Al -4V alloy thick plate, which was over 1 time deeper than that in the atmospheric joint (7 mm). In addition, the contents of the impurity gas elements (N, H and O) hardly changed after vacuum LBW (VLBW), ensuring the welding quality. The fusion zone mainly consisted of acicular a0 martensite, which enhanced the a0/a0 interface strengthening, resulting in the higher microhardness than that of the base material. The average tensile strength of the joint achieved 1010 MPa, with the strength efficiency 100%. Microstructure evolution mechanisms during VLBW were discussed. This study provides a reference for the engineering application of VLBW of titanium alloy thick plates. & COPY; 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
| 资助项目 | Youth Innovation Promotion Association of the Chinese Academy of Sciences[Y2021061] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2021193] ; Liaoning Provincial Natural Science Foundation[2021-YQ-01] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001068274000001 |
| 出版者 | ELSEVIER |
| 资助机构 | Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Liaoning Provincial Natural Science Foundation |
| 源URL | [http://ir.imr.ac.cn/handle/321006/179259]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wu, L. H.; Ni, D. R. |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, F. S.,Wu, L. H.,Zhao, H. B.,et al. Realizing deep penetration and superior mechanical properties in a titanium alloy thick plate joint via vacuum laser beam welding[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2023,26:2254-2264. |
| APA | Li, F. S..,Wu, L. H..,Zhao, H. B..,Xue, P..,Ni, D. R..,...&Ma, Z. Y..(2023).Realizing deep penetration and superior mechanical properties in a titanium alloy thick plate joint via vacuum laser beam welding.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,26,2254-2264. |
| MLA | Li, F. S.,et al."Realizing deep penetration and superior mechanical properties in a titanium alloy thick plate joint via vacuum laser beam welding".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 26(2023):2254-2264. |
入库方式： OAI收割
来源：金属研究所
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