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Vacuum joints of dispersion-strengthened copper and its applications in synchrotron radiation front end
Alternative TitleVacuum 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 PublicationNUCLEAR SCIENCE AND TECHNIQUES
ISSN1001-8042
Volume27Issue:6
AbstractMasks 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 AbstractMasks 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.
Keyword316 STAINLESS-STEEL ALUMINA BEHAVIOR ALLOY Dispersion-strengthened copper Brazing Electron beam welding Synchrotron radiation Front end
Indexed ByCSCD
Language英语
CSCD IDCSCD:5878486
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/142657
Collection中国科学院金属研究所
Affiliation1.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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