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| Azevedo, Nuno Monteiro |
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Rebak, Raul B.
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Topics
Publications (5/5 displayed)
- 2023Powder Metallurgy HIP and Extrusion Study of FeCrAl Alloy for Accident Tolerant Fuel Cladding
- 2022Mitigating LWR IronClad Fuel Cladding Dissolution Using Zinc Water Chemistry
- 2021Acid Dissolution Behavior of Ferritic FeCrAl Tubes Candidates for Nuclear Fuel Claddingcitations
- 2020Resistance of Ferritic FeCrAl Alloys to Stress Corrosion Cracking for Light Water Reactor Fuel Cladding Applicationscitations
- 2017High-temperature oxidation of advanced FeCrNi alloy in steam environmentscitations
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article
Resistance of Ferritic FeCrAl Alloys to Stress Corrosion Cracking for Light Water Reactor Fuel Cladding Applications
Abstract
<jats:p>Since 2011, the international nuclear materials community has been engaged in finding replacements for zirconium alloys fuel cladding for light water reactors. Iron-chromium-aluminum (FeCrAl) alloys are cladding candidates because they have high strength at high temperature and an extraordinary resistance to attack by superheated steam in the event of a loss of coolant accident. As FeCrAl alloys have never been used in nuclear reactors, it is important to characterize their behavior in the entire fuel cycle. Stress corrosion cracking (SCC) studies were conducted for two FeCrAl alloys (APMT and C26M) in typical simulated boiling water reactor conditions at 288°C containing either dissolved hydrogen or oxygen. Crack propagation studies showed that both ferritic FeCrAl alloys were resistant to SCC at stress intensities below 40 MPa√m. Current results for FeCrAl confirm previous findings for Fe-Cr alloys showing that ferritic stainless alloys are generally much more resistant to high-temperature water SCC than austenitic stainless steels.</jats:p>