Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1565922 | Journal of Nuclear Materials | 2012 | 6 Pages |
Abstract
A plan of 2nd moderator fabrication in JSNS is under way. In terms of low thermal expansion, invar joints, such as Invar-Al and Invar-SS316L joints, were developed by friction welding method as a component of hydrogen transfer line. Mechanical tests such as tensile tests, were carried out at room and cold (77Â K) temperature conditions. Especially, Invar-SS316L joint gave high tensile strength (yield strength: ca. 20% higher and ultimate strength: ca. 2.5Â times higher) and large strain at 77Â K, and fractured not at bonding interface but at base metal of invar. In case of Invar-Al joint, it also gave high yield strength, but fracture was occurred at bonding interface. However, these joints will be available for component of hydrogen transfer line.
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Authors
M. Teshigawara, M. Harada, M. Ooi, T. Kai, F. Maekawa, M. Futakawa,