C - Chemistry – Metallurgy – 22 – F
Patent
C - Chemistry, Metallurgy
22
F
148/36.1
C22F 1/18 (2006.01)
Patent
CA 1272108
ABSTRACT OF THE DISCLOSURE Processes for the rapid alpha annealing of zirconium based articles are described. These processes utilize induction heating to rapidly heat a worked zirconi- um based article to an elevated temperature after which it is then cooled. Time at the selected elevated temperature is less than about 1 second, and preferably essentially zero. Stress relieving of cold pilgered Zircaloy may be performed by induction heating to a temperature between about 540 and about 650°C. Partial recrystallization annealing of cold pilgered Zircaloy may be performed by induction heating to a temperature between about 650 and about 760°C. Full alpha recrystallization annealing of cold pilgered Zircaloy may be performed by induction heating to a temperature between about 760 and about 900°C.
514593
Cellier Francis
Comstock Robert John
Jacobsen William Alfred
Sabol George Paul
Bereskin & Parr
Westinghouse Electric Corporation
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