Mechanism of localized corrosion issues of austenitic steels exposed to flowing lead with 10.sup.-7./sup. wt.% oxygen at 480.sup.o./sup.C up to 16000 h

0561799 - FZÚ 2023 RIV NL eng J - Článek v odborném periodiku
Košek, L. - Rozumová, L. - Hojná, A. - Aparicio, C. - Vronka, Marek - Vít, J.
Mechanism of localized corrosion issues of austenitic steels exposed to flowing lead with 10^-7 wt.% oxygen at 480^oC up to 16000 h.
Journal of Nuclear Materials. Roč. 572, Dec. (2022), č. článku 154045. ISSN 0022-3115. E-ISSN 1873-4820
Grant CEP: GA MŠMT LM2018110
Institucionální podpora: RVO:68378271
Klíčová slova: LFR heavy liquid metal austenitic steel * corrosion localized attack mechanism
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 3.1, rok: 2022
Způsob publikování: Omezený přístup
https://doi.org/ 10.1016/j.jnucmat.2022.154045

This work aims to describe the corrosion behavior of austenitic steels 316L and 15-15Ti under the nominal conditions of the ALFRED reactor phase II operation. Specimens of 316L and 15-15Ti stainless steel were exposed to flowing lead. Post-test microscopic analyses revealed a possible mechanism of long-term susceptibility to localized solution-based attack. The corrosion of both austenitic steels was low, a thin oxide layer (80–240 nm) thin was formed, and a large-scale dissolution attack was not observed. The surface was mostly covered by a protective thin spinel film with variable Cr, Fe, and Mn ratios.

Trvalý link: https://hdl.handle.net/11104/0334302