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U.S. Department of Energy
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METHOD FOR ANNEALING AND ROLLING ZIRCONIUM-BASE ALLOYS

Patent ·
OSTI ID:4229181

A fabrication procedure is presented for alpha-stabilized zirconium-base alloys, and in particular Zircaloy-2. The alloy is initially worked at a temperature outside the alpha-plus-beta range (810 to 970 deg ), held at a temperature above 970 deg C for 30 minutes and cooled rapidly. The alloy is then cold-worked to reduce the size at least 20% and annealed at a temperature from 700 to 810 deg C. This procedure serves both to prevent the formation of stringers and to provide a randomly oriented crystal structure.

Research Organization:
Originating Research Org. not identified
NSA Number:
NSA-14-002710
Assignee:
U.S. Atomic Energy Commission
Patent Number(s):
US 2894866
OSTI ID:
4229181
Country of Publication:
United States
Language:
English