Performance of 9Cr Ferritic-Martensitic Steels in Flowing Lead for 8000 h

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F21%3AN0000054" target="_blank" >RIV/26722445:_____/21:N0000054 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0022311521003159" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0022311521003159</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jnucmat.2021.153092" target="_blank" >10.1016/j.jnucmat.2021.153092</a>

Result language
angličtina
Original language name
Performance of 9Cr Ferritic-Martensitic Steels in Flowing Lead for 8000 h
Original language description
The performance of two steels (Grade91, Eurofer97) were investigated after exposure to flowing liquid lead at 480 degrees C and similar to 1.6 m/s flow velocity with an average oxygen concentration 1 x 10(-7) wt.% up to 8116 h. The testing of cylindrical specimens was done in the MATerial test Loop (MATLoo), a non isothermal corrosion loop with active oxygen control system consisting of Bi/Bi2O3/YSZ sensors and oxidizing/reducing gas dosing system. The corrosion mode was oxidation, both steels developed characteristic triple layer and no dissolution attack was observed. The oxide growth followed logarithmic kinetics. The Eurofer97 specimens were covered with exfoliating continuous scale, oxidized faster and the material loss was almost linear reaching 38 mu m at 8116 h. The Grade91 specimens developed thick oxide scale on 95% of the surface of the samples, the remaining surface was covered with very thin oxide of 40-90 nm with or without internal oxidation zone, and detachment of the outer layer was minimal. Surprisingly, the maximum material loss 17 mu m was observed on 4082 h specimen, while 50% of surface of 8116 h specimen remained uncovered with magnetite and material loss was only 14 mu m.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20501 - Materials engineering

Project
<a href="/en/project/LQ1603" target="_blank" >LQ1603: Research for SUSEN</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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