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Open AccessArticle
Corrosion Behavior of Ferritic 12Cr ODS and Martensitic X46Cr13 Steels in Nitric Acid and Sodium Chloride Solutions
by
Krzysztof Nowik
Krzysztof Nowik 1,*
,
Rafał Zybała
Rafał Zybała 2
,
Bogna Sztorch
Bogna Sztorch 3 and
Zbigniew Oksiuta
Zbigniew Oksiuta 4,*
1
Institute of Mechanical Engineering, Faculty of Mechanical Engineering, Białystok University of Technology, Wiejska 45C, 15-351 Białystok, Poland
2
Łukasiewicz Research Network—Institute of Microelectronics and Photonics, Al. Lotników 32/46, 02-668 Warsaw, Poland
3
Centre for Advanced Technologies, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
4
Institute of Biomedical Engineering, Faculty of Mechanical Engineering, Białystok University of Technology, Wiejska 45C, 15-351 Białystok, Poland
*
Authors to whom correspondence should be addressed.
Materials 2024, 17(14), 3466; https://doi.org/10.3390/ma17143466 (registering DOI)
Submission received: 30 April 2024
/
Revised: 4 July 2024
/
Accepted: 8 July 2024
/
Published: 12 July 2024
Abstract
This paper presents corrosion resistance results of a 12Cr ferritic ODS steel (Fe-12Cr-2W-0.5Zr-0.3Y2O3) fabricated via a powder metallurgy route as a prospective applicant for fuel cladding materials. In a spent nuclear fuel reprocessing facility, nitric acid serves as the primary solvent in the PUREX method. Therefore, fundamental immersion and electrochemical tests were conducted in various nitric acid solutions to evaluate corrosion degradation behavior. Additionally, polarization tests were also performed in 0.61 M of sodium chloride solutions (seawater-like atmosphere) as a more general, all-purpose procedure that produces valid comparisons for most metal alloys. For comparison, martensitic X46Cr13 steel was also examined under the same conditions. In general, the corrosion resistance of the 12Cr ODS steel was better than its martensitic counterpart despite a lower nominal chromium content. Potentiodynamic polarization plots exhibited a lower corrosion current and higher breakdown potentials in chloride solution in the case of the ODS steel. It was found that the corrosion rate during immersion tests was exceptionally high in diluted (0.1–3 M) boiling nitric acid media, followed by its sharp decrease in more concentrated solutions (>4 M). The results of the polarization plots also exhibited a shift toward more noble corrosion potential as the concentrations increased from 1 M to 4 M of HNO3. The results on corrosion resistance were supported by LSCM and SEM observations of surface topology and corrosion products.
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MDPI and ACS Style
Nowik, K.; Zybała, R.; Sztorch, B.; Oksiuta, Z.
Corrosion Behavior of Ferritic 12Cr ODS and Martensitic X46Cr13 Steels in Nitric Acid and Sodium Chloride Solutions. Materials 2024, 17, 3466.
https://doi.org/10.3390/ma17143466
AMA Style
Nowik K, Zybała R, Sztorch B, Oksiuta Z.
Corrosion Behavior of Ferritic 12Cr ODS and Martensitic X46Cr13 Steels in Nitric Acid and Sodium Chloride Solutions. Materials. 2024; 17(14):3466.
https://doi.org/10.3390/ma17143466
Chicago/Turabian Style
Nowik, Krzysztof, Rafał Zybała, Bogna Sztorch, and Zbigniew Oksiuta.
2024. "Corrosion Behavior of Ferritic 12Cr ODS and Martensitic X46Cr13 Steels in Nitric Acid and Sodium Chloride Solutions" Materials 17, no. 14: 3466.
https://doi.org/10.3390/ma17143466
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