Zircaloy tubing having high resistance to crack propagation

Details Zircaloy tubing having high resistance to crack propagation Zircaloy tubing having high resistance to crack propagation

1993-04-23

1996-05-21

Wasil, Daniel D.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Nonconventional jacket or can material

376900, 148519, 148672, 428548, G21C 307

Patent

active

055197485

ABSTRACT:
A Zircaloy cladding having an outer region comprising fine precipitates and inner region comprising coarse precipitates is provided. The outer region comprises about 10% and the inner region comprises about 90% of the cladding wall thickness. Such Zircaloy tubing is resistant to propagation of cracks and at the same time resistant to corrosion in boiling water reactors (BWR). Resistance to damage caused by the pellet-cladding-interaction can be achieved by standard application of a zirconium or zirconium-alloy liner on the tubing inside surface.

REFERENCES:
patent: 4576654 (1986-03-01), Eddens et al.
patent: 4718949 (1988-01-01), Takase et al.
patent: 4894203 (1990-01-01), Adamson
patent: 4938920 (1990-07-01), Garzarolli et al.

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