Zirconium base fuel cladding resistant to PCI crack propagation

Details Zirconium base fuel cladding resistant to PCI crack propagation Zirconium base fuel cladding resistant to PCI crack propagation

1984-03-14

1987-05-12

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

With means to prevent thinning of the cladding

376416, 376417, 427 6, 427239, 427405, 148 62, 148 635, 148 6, G21C 300

Patent

active

046648810

ABSTRACT:
The present invention pertains to zirconium base alloys containing about 0.1 to 0.6 weight percent tin; about 0.07 to 0.24 weight percent iron; about 0.05 to 0.15 weight percent chromium; and up to about 0.05 weight percent nickel. The balance of the alloy is zirconium with incidental impurities. The levels of the incidental impurity, oxygen, is controlled to a level of less than about 350 ppm. These alloys have been designed to minimize the adverse effects of pellet-clad interaction, when they are used as a liner bonded to the inside surface of water reactor nuclear fuel cladding. Specific cladding and fuel element designs according to the present invention are described.

REFERENCES:
patent: 4029545 (1977-06-01), Gordon
patent: 4200492 (1980-04-01), Armijo
patent: 4284660 (1981-08-01), Donaghy
patent: 4411861 (1983-10-01), Steinberg
patent: 4473410 (1984-09-01), Grubb

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