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Corrosion behaviour of oxide dispersion strengthened iron‐chromium steels in liquid lead at 973 K
Author(s) -
Ricci Enrica,
Giuranno Donatella,
Canu Giovanna,
Amore Stefano,
Novakovic Rada
Publication year - 2018
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.201709995
Subject(s) - chromium , materials science , dissolution , metallurgy , passivation , oxide , corrosion , dispersion (optics) , internal oxidation , penetration (warfare) , iron oxide , high temperature corrosion , lead oxide , chemical engineering , composite material , layer (electronics) , physics , optics , operations research , engineering
The corrosion behaviour of oxide dispersion strengthened (ODS) steels with different chromium contents (9, 12 and 14 wt% Cr) is investigated in stagnant liquid lead at a temperature of 973 K for 2000 h. Under an oxygen concentration close to the passivation domain (i.e. Co ∼10 −5 –10 −4 wt% O), neither an internal oxidation zone in the steel matrix, nor dissolution attack caused by liquid lead or its penetration is observed. Indeed, thin layers of chromium rich oxides with different compositions are detected.