Long-term corrosion performance of T91 ferritic/martensitic steel at 400 °C in flowing Pb-Bi eutectic with 2 × 10−7 mass% dissolved oxygen

Valentyn Tsisar; Serguei Gavrilov; Carsten Schroer; Erich Stergar

doi:10.1016/j.corsci.2020.108852

Long-term corrosion performance of T91 ferritic/martensitic steel at 400 °C in flowing Pb-Bi eutectic with 2 × 10−7 mass% dissolved oxygen

Valentyn Tsisar, Serguei Gavrilov, Carsten Schroer, Erich Stergar

Research output › peer-review

Abstract

Long-term corrosion behavior of T91 ferritic/martensitic steel in oxygen-doped flowing Pb–Bi eutectic is investigated by exposure for up to 20,000 h at 400 °C, 2 m/s and 2 × 10−7mass% dissolved oxygen. The corrosion phenomena and kinetics of interaction are characterized qualitatively and quantitatively. The steel shows major oxidation resulted in the formation of a bilayer Fe3O4 / Fe(Fe,Cr)2O4 scale. After 20,000 h, the scale thickness averages 12.6 ( ± 2.7) μm. The metal recession due to oxidation does not exceed 5 ( ± 1) μm. Besides oxidation, the localized dissolution of the steel is observed reaching of ∼100 μm in depth after 20,000 h.

Original language	English
Article number	108852
Pages (from-to)	1-11
Number of pages	11
Journal	Corrosion Science
Volume	174
DOIs	https://doi.org/10.1016/j.corsci.2020.108852
State	Published - 2 Jul 2020

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Cite this

@article{edc584bfe2a44fecb451f08a021f5999,

title = "Long-term corrosion performance of T91 ferritic/martensitic steel at 400 °C in flowing Pb-Bi eutectic with 2 × 10−7 mass% dissolved oxygen",

abstract = "Long-term corrosion behavior of T91 ferritic/martensitic steel in oxygen-doped flowing Pb–Bi eutectic is investigated by exposure for up to 20,000 h at 400 °C, 2 m/s and 2 × 10−7mass% dissolved oxygen. The corrosion phenomena and kinetics of interaction are characterized qualitatively and quantitatively. The steel shows major oxidation resulted in the formation of a bilayer Fe3O4 / Fe(Fe,Cr)2O4 scale. After 20,000 h, the scale thickness averages 12.6 ( ± 2.7) μm. The metal recession due to oxidation does not exceed 5 ( ± 1) μm. Besides oxidation, the localized dissolution of the steel is observed reaching of ∼100 μm in depth after 20,000 h.",

keywords = "Steel, Oxidation, Kinetic parameters, Liquid Pb-Bi, Corrosion",

author = "Valentyn Tsisar and Serguei Gavrilov and Carsten Schroer and Erich Stergar",

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doi = "10.1016/j.corsci.2020.108852",

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TY - JOUR

T1 - Long-term corrosion performance of T91 ferritic/martensitic steel at 400 °C in flowing Pb-Bi eutectic with 2 × 10−7 mass% dissolved oxygen

AU - Tsisar, Valentyn

AU - Gavrilov, Serguei

AU - Schroer, Carsten

AU - Stergar, Erich

N1 - Score=10

PY - 2020/7/2

Y1 - 2020/7/2

N2 - Long-term corrosion behavior of T91 ferritic/martensitic steel in oxygen-doped flowing Pb–Bi eutectic is investigated by exposure for up to 20,000 h at 400 °C, 2 m/s and 2 × 10−7mass% dissolved oxygen. The corrosion phenomena and kinetics of interaction are characterized qualitatively and quantitatively. The steel shows major oxidation resulted in the formation of a bilayer Fe3O4 / Fe(Fe,Cr)2O4 scale. After 20,000 h, the scale thickness averages 12.6 ( ± 2.7) μm. The metal recession due to oxidation does not exceed 5 ( ± 1) μm. Besides oxidation, the localized dissolution of the steel is observed reaching of ∼100 μm in depth after 20,000 h.

AB - Long-term corrosion behavior of T91 ferritic/martensitic steel in oxygen-doped flowing Pb–Bi eutectic is investigated by exposure for up to 20,000 h at 400 °C, 2 m/s and 2 × 10−7mass% dissolved oxygen. The corrosion phenomena and kinetics of interaction are characterized qualitatively and quantitatively. The steel shows major oxidation resulted in the formation of a bilayer Fe3O4 / Fe(Fe,Cr)2O4 scale. After 20,000 h, the scale thickness averages 12.6 ( ± 2.7) μm. The metal recession due to oxidation does not exceed 5 ( ± 1) μm. Besides oxidation, the localized dissolution of the steel is observed reaching of ∼100 μm in depth after 20,000 h.

KW - Steel

KW - Oxidation

KW - Kinetic parameters

KW - Liquid Pb-Bi

KW - Corrosion

UR - https://ecm.sckcen.be/OTCS/llisapi.dll/open/41703110

U2 - 10.1016/j.corsci.2020.108852

DO - 10.1016/j.corsci.2020.108852

M3 - Article

SN - 0010-938X

VL - 174

SP - 1

EP - 11

JO - Corrosion Science

JF - Corrosion Science

M1 - 108852

ER -