Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7893530 | Corrosion Science | 2018 | 10 Pages |
Abstract
The oxidation kinetics acceleration observed in Zircaloy-4 cladding in Pressurized Water Reactor could be partially due to metal irradiation damage occuring in-pile. To check this assumption, several ion irradiation tests of the Zircaloy-4 metal matrix were performed to reproduce the evolution of the metallurgical state in reactor. This study showed that the amorphization process of the intermetallic precipitates (SPPs) does not change significantly the oxidation rate of Zircaloy-4. Implantation of iron in the matrix to simulate iron dissolution from the SPPs has no real impact on the corrosion kinetics. However proton irradiations at 350â¯Â°C producing dislocation loops resulted in a significant increase in the oxidation rate.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Marc Tupin, Romain Verlet, Kimberly Colas, Michael Jublot, Gérard Baldacchino, Krzysztof Wolski,