SYMPOSIA PAPER Published: 01 January 1984
STP34497S

Modeling of Zircaloy Stress-Corrosion Cracking: Texture Effects and Dry Storage Spent Fuel Behavior

Source

A phenomenological model has been developed for predicting iodine-induced stress-corrosion crack (SCC) initiation and growth in Zircaloy cladding. This model is capable of predicting various observed behaviors related to SCC.

A recently developed submodel for predicting the effect of texture on SCC has been incorporated into the original stress-corrosion crack initiation and growth (SCCIG) model. It utilizes basal pole figure data. This allows predictions of a number of observed phenomena on the effect of texture on SCC. In the process the model helps to explain why texture has different apparent effects on Zircaloy SCC depending on the test conditions.

The SCCIG model can also be used for predicting cladding SCC behavior under dry storage conditions. In this study the model has been used to predict the cladding SCC limiting temperature (SLT) for several specific fuel rod conditions.

Author Information

Tasooji, A
Stanford University, Stanford, Calif
Einziger, RE
Westinghouse Hanford Co., Richland, Wash.
Miller, AK
Stanford University, Stanford, Calif
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Details
Developed by Committee: B10
Pages: 595–626
DOI: 10.1520/STP34497S
ISBN-EB: 978-0-8031-4895-6
ISBN-13: 978-0-8031-0270-5