TENSILE TESTS OF NIOBIUM MATERIAL FOR SRF CAVITIES

被引：6

作者：

Wu, G. ^{[1
]}

Dhanaraj, N. ^{[1
]}

Cooley, L. ^{[1
]}

Hicks, D. ^{[1
]}

Hahn, E. ^{[1
]}

Burk, D. ^{[1
]}

Muranyi, W. ^{[1
]}

Foley, M. ^{[1
]}

Edwards, H. ^{[1
]}

Harms, E. ^{[1
]}

Champion, M. ^{[1
]}

Baars, D. ^{[2
]}

Compton, C. ^{[2
]}

机构：

[1] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA

[2] Michigan State Univ, E Lansing, MI 48824 USA

来源：

ADVANCES IN CRYOGENIC ENGINEERING, VOLS 55A AND 55B | 2010年 / 1218卷

关键词：

superconducting radio-frequency cavity; niobium; mechanical testing; niobium mechanical properties; residual resistivity ratio;

D O I：

10.1063/1.3422440

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Mechanical tests of cavity-grade niobium samples were conducted to provide engineering information for the certification of 3rd-harmonic superconducting radio-frequency cavities and cryomodules. Large changes of mechanical properties occur throughout the cavity fabrication process due to the cold work introduced by forming, the heating introduced by electron beam welding, and the recovery of cold work during the anneal used to degas hydrogen after chemical processing. Data is provided here to show the different properties at various stages of fabrication, including both weld regions and samples from the bulk niobium far away from the weld. Measurements of RRR were used to assure that any contamination during annealing was negligible.

引用

页码：857 / +

页数：2

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