The Failure of Stressed Zircaloy in Aqueous Chloride Solutions
- 1 June 1965
- journal article
- research article
- Published by Taylor & Francis in Nuclear Applications
- Vol. 1 (3) , 252-258
- https://doi.org/10.13182/NT65-A20510
Abstract
The susceptibility of Zircaloy-4 and crystal-bar zirconium to failure in aqueous ferric chloride solutions has been determined as a function of stress, hydrogen content of the metal, and chloride concentration of the solution. Intergranular failures were observed in all cases. Based on these results, a model for the failure of stressed zirconium-base alloys in chloride solutions is proposed, viz. that cracks initiated at the hydride phase near the surface by dislocation pileups can propagate under the action of a corrosive medium, resulting in eventual catastrophic failure. This model predicts a failure that is dependent on amount of hydride present, orientation of the hydride, and time.Keywords
This publication has 3 references indexed in Scilit:
- Stress Corrosion of Type 304 Stainless Steel in Chloride EnvironmentsCorrosion, 1964
- Anodic Behavior of Austenitic Stainless Steels and Susceptibility to Stress Corrosion CrackingJournal of the Electrochemical Society, 1961
- Stress‐corrosion cracking of austenitic stainless steels with applied E.M.F.Journal of Chemical Technology & Biotechnology, 1958