Abstract
The effect of pre ‐oxidation in dry oxygen gas on the corrosion behavior of Zircaloy ‐2 and unalloyed zirconium in steam was investigated. In the case of Zircaloy ‐2, pre ‐oxidation has no effect on corrosion behavior, the kinetics being the same whether all or part of the total exposure is in oxygen. A transition in kinetics from quasi ‐cubic to linear occurs in the corrosion of Zircaloy ‐2 in either medium, indicating that the transition is not associated with corrosion product hydrogen. On the other hand, unalloyed Zr shows neither transition nor breakaway (spalling) when exposed to oxygen, and exhibits breakaway on exposure to steam whether pre ‐oxidized or not, suggesting that breakaway is associated with corrosion product hydrogen. The phenomena of breakaway and transition are shown to be distinctly different.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
