| Vacuum joints of dispersion-strengthened copper and its applications in synchrotron radiation front end | |
| Alternative Title | Vacuum joints of dispersion-strengthened copper and its applications in synchrotron radiation front end |
| Li YongJun1; Xue Song1; Zhang Min1; Jia DanDan1; Dou DongBai3; Gao Yu3 | |
| 2016 | |
| Source Publication | NUCLEAR SCIENCE AND TECHNIQUES
 |
| ISSN | 1001-8042 |
| Volume | 27Issue:6 |
| Abstract | Masks are critical elements of synchrotron radiation front end that are exposed to high temperature and stress. The absorber material is typically comprised of dispersion-strengthened copper, which can retain high performance at elevated temperature. Joining processes under vacuum, including brazing and electron beam welding, are novel approaches for prolonging the absorber and for reducing power densities. The mechanical properties of brazed joints and electron beam welded joints of dispersion-strengthened copper workpieces are evaluated by tensile testing at 20, 100, and 200 degrees C. The testing results indicate that the tensile strength and elongation of both vacuum joints decrease with increasing temperature. Compared to brazed joints, electron beam welded joints have higher tensile strength, better ductility, and more stable performance. A novel welded mask with a total length of 600 mm is presented and shown to be practical for use in the highest heat load front end in the Shanghai synchrotron radiation facility phase-II beamline project. |
| Other Abstract | Masks are critical elements of synchrotron radiation front end that are exposed to high temperature and stress. The absorber material is typically comprised of dispersion-strengthened copper, which can retain high performance at elevated temperature. Joining processes under vacuum, including brazing and electron beam welding, are novel approaches for prolonging the absorber and for reducing power densities. The mechanical properties of brazed joints and electron beam welded joints of dispersion-strengthened copper workpieces are evaluated by tensile testing at 20, 100, and 200 °C. The testing results indicate that the tensile strength and elongation of both vacuum joints decrease with increasing temperature. Compared to brazed joints, electron beam welded joints have higher tensile strength, better ductility, and more stable performance. A novel welded mask with a total length of 600 mm is presented and shown to be practical for use in the highest heat load front end in the Shanghai synchrotron radiation facility phase-II beamline project. |
| Keyword | 316 STAINLESS-STEEL ALUMINA BEHAVIOR ALLOY Dispersion-strengthened copper Brazing Electron beam welding Synchrotron radiation Front end |
| Indexed By | CSCD |
| Language | 英语 |
| CSCD ID | CSCD:5878486 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/142659 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 1.中国科学院 2.中国科学院大学 3.中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | Li YongJun,Xue Song,Zhang Min,et al. Vacuum joints of dispersion-strengthened copper and its applications in synchrotron radiation front end[J]. NUCLEAR SCIENCE AND TECHNIQUES,2016,27(6). |
| APA | Li YongJun,Xue Song,Zhang Min,Jia DanDan,Dou DongBai,&Gao Yu.(2016).Vacuum joints of dispersion-strengthened copper and its applications in synchrotron radiation front end.NUCLEAR SCIENCE AND TECHNIQUES,27(6). |
| MLA | Li YongJun,et al."Vacuum joints of dispersion-strengthened copper and its applications in synchrotron radiation front end".NUCLEAR SCIENCE AND TECHNIQUES 27.6(2016). |
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