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.

Corrosion behaviour of oxide dispersion strengthened iron-chromium steels in liquid lead at 973 K

Ricci E;Giuranno D;Canu G;Amore S;Novakovic R
2018

Abstract

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.
2018
Istituto di Chimica della Materia Condensata e di Tecnologie per l'Energia - ICMATE
high temperature corrosion
LFR
liquid metal
ODS steel
oxidat
SEM
XRD
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Descrizione: Corrosion behaviour of oxide dispersion strengthened iron-chromium steels in liquid lead at 973 K
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/343907
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