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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/LQ1603" target="_blank" >LQ1603: Výzkum pro SUSEN</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Nuclear Materials

ISSN

0022-3115

e-ISSN

1873-4820

Svazek periodika

554

Číslo periodika v rámci svazku

October

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

15

Strana od-do

1-15

Kód UT WoS článku

000678132000007

EID výsledku v databázi Scopus

2-s2.0-85107038267