Dose Dependence of Irradiation Creep of Zircaloy-2

DS Wood

doi:10.1520/STP33688S

SYMPOSIA PAPER Published: 01 January 1975

STP33688S

Dose Dependence of Irradiation Creep of Zircaloy-2

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Periodic diameter measurements have been carried out on a number of the cold worked Zircaloy-2 pressure tubes in a steam generating heavy water reactor. Sufficient results are now available for statistical treatment, and they can be expressed as a function of the dose. The creep strain can be expressed equally well by two relationships, one involving a linear correlation with the dose and the other, a term of dose to the power of 0.6. After 30 years operation it is predicted that the pressure tube creep strains will be within the range of 1 to 3 percent. Observed differences in creep strain on tubes from different suppliers may be due to texture differences.

Author Information

Wood, DS

Risley Engineering and Materials Laboratory, United Kingdom Atomic Energy Authority, Risley, Warrington, England

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Details

Developed by Committee: E10

Pages: 207–217

DOI: 10.1520/STP33688S

ISBN-EB: 978-0-8031-4653-2

ISBN-13: 978-0-8031-0539-3

Dose Dependence of Irradiation Creep of Zircaloy-2

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