Induced nuclear reactions: processes – systems – and elements – Handling of fission reactor component structure within...
Patent
1995-06-19
1997-08-05
Wasil, Daniel D.
Induced nuclear reactions: processes, systems, and elements
Handling of fission reactor component structure within...
219 82, 2281101, 2940216, G21C 1900
Patent
active
056549920
ABSTRACT:
A neutron-irradiated structural material having a defect in a nuclear reactor internals is repaired by covering the structural material to be repaired with a plate to cover over a portion thereof having the defect, and then welding the plate and the structural material by locally applying pressure on the surface of the plate and adding energy to the portion to which the pressure is applied thereby to generate thermal energy in the contact surfaces between the plate and the structural material.
REFERENCES:
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Journal of Material Science, vol. 26, (1991), pp. 2063-2070, H.T. Lin, et al.
Metallurgical Transaction A., vol. 21A (1990/9) pp. 2585-2596, H.T. Lin, et al.
Welding Journal (1991/5), pp. 123-132, S.H. Goods, et al.
Metallurgical Transaction A. vol. 23A (1992/5), pp. 1021-1032, S.H. Goods, et al.
Welding Journal (1992/4), pp. 43-51, E.A. Franco-Ferreira, et al. DP-MS-89-41 (DE90-001312) Helium Induced Weld Cracking in Irradiated 304 Stainless Steel (U), A.K. Birchenall.
Kaneda Jun'ya
Kato Takahiko
Matsumoto Toshimi
Nakamura Mitsuo
Okamura Hisanori
Hitachi , Ltd.
Wasil Daniel D.
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