Proposal to irradiate fuel elements with beta heat treated zircaloy-4 fuel cladding in the NRU demountable fuel bundles
Author: D. G. Hardy
Publisher:
Published: 1970
Total Pages: 0
ISBN-13:
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Author: D. G. Hardy
Publisher:
Published: 1970
Total Pages: 0
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DOWNLOAD EBOOKAuthor: M. A. Feraday
Publisher:
Published: 1971
Total Pages: 0
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DOWNLOAD EBOOKAuthor: R. D. Macdonald
Publisher:
Published: 1970
Total Pages: 0
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DOWNLOAD EBOOKAuthor: V. J. Langman
Publisher:
Published: 1977
Total Pages: 0
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DOWNLOAD EBOOKAuthor: E. G. Mcvey
Publisher:
Published: 1969
Total Pages: 0
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DOWNLOAD EBOOKAuthor: V. J. Langman
Publisher:
Published: 1978
Total Pages: 0
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DOWNLOAD EBOOKAuthor:
Publisher:
Published: 1961
Total Pages: 15
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DOWNLOAD EBOOKA brazed end closure is currently being used on prototypical NPR fuel elements. The production closure will use a braze alloy composed of 5% Be + 95% Zry-2 to braze the Zircaloy-2 cap to the jacket and to the metallic uranium core. A similar MTR test, a GEH-4-57, 58, used a braze alloy of the composition 4% Be + 12% Fe + 84% Zry-2 which melts at a lower temperature. In this previous test, element GEH-4-57 failed through a cladding defect located at the base of the braze heat affected zone. Because of this failure it would be desirable to subject a fuel element, which had been subjected to more severe brazing conditions, to the same conditions as GEH-4-57, 58. For this reason the thermal conditions of this test essentially match those of GEH-4-57, 58. This irradiation test consists of two identical fuel elements. The fuel material is normal metallic uranium, Zircaloy-2 clad of the tubular geometry, NPR inner size. The fuel was coextruded at Hanford by General Electric's Fuels Preparation Department. Each element is 10.8 inches in length with flat Zircaloy-2 end caps brazed to the jacket and uranium core with the 5 Be + 95 Zry-2 brazing alloy, then TIG welded to further insure closure integrity. The elements ar 1.254 inches OD and 0.439 inches ID. For hydraulic purposes a 0.343 inch diamater flow restrictor has been fitted into the central flow channel of both elements.
Author: K. P. Steward
Publisher:
Published: 1966
Total Pages: 0
ISBN-13:
DOWNLOAD EBOOKAuthor: D. Mills
Publisher:
Published: 1971
Total Pages: 0
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DOWNLOAD EBOOKAuthor: F. D. Szieleit
Publisher:
Published: 1971
Total Pages: 0
ISBN-13:
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