Vacuum joints of dispersion-strengthened copper and its applications in synchrotron radiation front end

IMR OpenIR

	Vacuum joints of dispersion-strengthened copper and its applications in synchrotron radiation front end
其他题名	Vacuum joints of dispersion-strengthened copper and its applications in synchrotron radiation front end
	Li YongJun 1; Xue Song 1; Zhang Min 1; Jia DanDan 1; Dou DongBai 3; Gao Yu 3
	2016
发表期刊	NUCLEAR SCIENCE AND TECHNIQUES
ISSN	1001-8042
卷号	27 期号:6
摘要	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.
其他摘要	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.
关键词	316 STAINLESS-STEEL ALUMINA BEHAVIOR ALLOY Dispersion-strengthened copper Brazing Electron beam welding Synchrotron radiation Front end
收录类别	CSCD
语种	英语
CSCD记录号	CSCD:5878486
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/142657
专题	中国科学院金属研究所
作者单位	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
推荐引用方式 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).