{"title":"Improving the corrosion resistance of FeCrAl alloy in high temperature hydrogenated water through gaseous pre-oxidation","authors":"","doi":"10.1016/j.corcom.2024.03.001","DOIUrl":null,"url":null,"abstract":"<div><p>FeCrAl alloy, a promising candidate for accident tolerance fuel (ATF) cladding, has relatively low resistance to general corrosion in high temperature water. To improve the corrosion resistance, a continuous Al<sub>2</sub>O<sub>3</sub> layer was formed on the surface of FeCrAl alloy through gaseous pre-oxidation. It was found that such treatment can significantly improve its corrosion resistance in high temperature hydrogenated water. The thickness of inner oxide layer after exposure to 320 °C hydrogenated water for 950 h was reduced by ∼40%. In addition, the size and density of outer oxide particles were also decreased. However, the Al<sub>2</sub>O<sub>3</sub> film pre-formed on FeCrAl alloy had poor stability in high temperature water and its long-term effect needs to be further evaluated.</p></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"15 ","pages":"Pages 36-41"},"PeriodicalIF":0.0000,"publicationDate":"2024-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667266924000185/pdfft?md5=d3cb926d33498af722723db6b59d79a7&pid=1-s2.0-S2667266924000185-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Corrosion Communications","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2667266924000185","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
FeCrAl alloy, a promising candidate for accident tolerance fuel (ATF) cladding, has relatively low resistance to general corrosion in high temperature water. To improve the corrosion resistance, a continuous Al2O3 layer was formed on the surface of FeCrAl alloy through gaseous pre-oxidation. It was found that such treatment can significantly improve its corrosion resistance in high temperature hydrogenated water. The thickness of inner oxide layer after exposure to 320 °C hydrogenated water for 950 h was reduced by ∼40%. In addition, the size and density of outer oxide particles were also decreased. However, the Al2O3 film pre-formed on FeCrAl alloy had poor stability in high temperature water and its long-term effect needs to be further evaluated.
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