Influence of Different Beam Oscillation Patterns in Electron Beam Welding of Niobium Sheets with Different Thickness
文献类型：期刊论文
| 作者 | Tao, Jia1,3; Wu, Jiefeng1,2 ; Liu, Zhihong1,2; Ma, Jianguo1,2; Liu, Zhenfei2; Peng, Wuqingliang1,3
|
| 刊名 | MATERIALS
 |
| 出版日期 | 2022-06-01 |
| 卷号 | 15 |
| 关键词 | iris weld niobium sheets electron beam welding oscillating patterns EBSD mechanical properties low temperature |
| DOI | 10.3390/ma15113778 |
| 通讯作者 | Ma, Jianguo(mjg@ipp.ac.cn) |
| 英文摘要 | The electron beam welding of the tubes and the half-cells for our 1.3 GHz single-cell superconducting radiofrequency (SRF) cavities is complex due to the different thicknesses of the tubes and the half-cells in the iris region. However, the mechanical properties and microstructure of the iris welds in niobium SRF cavities have barely been explored in previous studies. For high-quality iris welds, welding experiments of niobium sheets of 2 mm and 2.8 mm were carried out under different oscillating conditions. The results show that welding with no oscillation or sinusoidal oscillation may not be applied in actual welding owing to the large misalignment of the bottom surface. The weld grains were not significantly refined through beam oscillation. The joints with infinity oscillation had a higher elongation than circular oscillation, which exhibited a brittle fracture in the tensile tests at 77 K. Nevertheless, the texture of the weld with infinity oscillation implies poor formability, so the feasibility of infinity oscillation in actual welding needs verification in future study. |
| WOS关键词 | MECHANICAL-PROPERTIES ; MICROSTRUCTURE EVOLUTION ; CAVITY ; PRESSURE ; SINGLE ; ALLOY ; GAS |
| 资助项目 | Anhui Provincial Key Research and Development Plan[202104a05020079] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000810019800001 |
| 资助机构 | Anhui Provincial Key Research and Development Plan |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/131323]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Ma, Jianguo |
| 作者单位 | 1.Chinese Acad Sci, Inst Plasma Phys, HFIPS, Hefei 230031, Peoples R China 2.Anhui Prov Key Lab Special Welding Technol, Huainan 232000, Peoples R China 3.Univ Sci & Technol China, Sci Isl Branch, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tao, Jia,Wu, Jiefeng,Liu, Zhihong,et al. Influence of Different Beam Oscillation Patterns in Electron Beam Welding of Niobium Sheets with Different Thickness[J]. MATERIALS,2022,15. |
| APA | Tao, Jia,Wu, Jiefeng,Liu, Zhihong,Ma, Jianguo,Liu, Zhenfei,&Peng, Wuqingliang.(2022).Influence of Different Beam Oscillation Patterns in Electron Beam Welding of Niobium Sheets with Different Thickness.MATERIALS,15. |
| MLA | Tao, Jia,et al."Influence of Different Beam Oscillation Patterns in Electron Beam Welding of Niobium Sheets with Different Thickness".MATERIALS 15(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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。