Corrosion behavior of 9 %Cr ferritic/martensitic (F/M) P92, E911 and EUROFER steels was investigated in flowing (2 m/s) Pb-Bi with 10−7 mass%O at 450 and 550 °C for up to 8766 and 2011 h, respectively. The steels show mixed corrosion modes simultaneously revealing protective scaling, accelerated oxidation and solution-based attack. At 450 °C, the accelerated oxidation resulted in a metal recession averaging 6 μm (± 2 μm) after ∼8766 h while local solution-based corrosion attack ranged from ∼40 to 350 μm. At 550 °C, the accelerated oxidation resulted in a metal recession of about 10 μm (± 2 μm) after ∼2011 h. Solution-based corrosion attack appears more regularly at 550 °C, with a maximum depth ranged from ∼90 to 1000 μm. Incubation time for solution based attack is 500–2000 h for 450 °C and < 300 h for 550 °C. The EUROFER steel showed more severe metal recession via both oxidation and solution-based corrosion in comparison with P92 and E911 steels. The possible effect of alloying and structure on the corrosion response of 9 %Cr F/M steels is discussed.
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2016 24th International Conference on Nuclear Engineering
June 26–30, 2016
Charlotte, North Carolina, USA
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-5001-5
PROCEEDINGS PAPER
Corrosion of 9% Cr Ferritic/Martensitic Steels in Flowing Pb-Bi Eutectic With 10−7 Mass% Dissolved Oxygen at 450 and 550 °C Available to Purchase
Valentyn Tsisar,
Valentyn Tsisar
Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
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Carsten Schroer,
Carsten Schroer
Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
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Olaf Wedemeyer,
Olaf Wedemeyer
Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
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Aleksandr Skrypnik,
Aleksandr Skrypnik
Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
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Jürgen Konys
Jürgen Konys
Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
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Valentyn Tsisar
Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
Carsten Schroer
Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
Olaf Wedemeyer
Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
Aleksandr Skrypnik
Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
Jürgen Konys
Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
Paper No:
ICONE24-60826, V001T03A024; 9 pages
Published Online:
October 25, 2016
Citation
Tsisar, V, Schroer, C, Wedemeyer, O, Skrypnik, A, & Konys, J. "Corrosion of 9% Cr Ferritic/Martensitic Steels in Flowing Pb-Bi Eutectic With 10−7 Mass% Dissolved Oxygen at 450 and 550 °C." Proceedings of the 2016 24th International Conference on Nuclear Engineering. Charlotte, North Carolina, USA. June 26–30, 2016. V001T03A024. ASME. https://doi.org/10.1115/ICONE24-60826
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