Owen, J. orcid.org/0000-0003-0778-0858, Burkle, D., Joshi, G.R. et al. (7 more authors) (2023) In situ SR-XRD analysis of corrosion product formation during ‘pseudo-passivation’ of carbon steel in CO2-containing aqueous environments. Corrosion Science, 225. 111598. ISSN 0010-938X
Abstract
In situ Synchrotron Radiation X-ray Diffraction (SR-XRD) is employed to follow the evolution of corrosion products on X65 carbon steel in a CO2-containing aqueous environment (80 °C, pH 6.3–7.3). A custom-designed flow cell is used to follow the real-time concomitant changes in electrochemical behaviour and corrosion product growth during stages of both natural and potentiodynamically driven ‘pseudo-passivation’. We show that no deteca crystalline magnetite (Fe3O4) phase forms during ‘pseudo-passivation’ across all conditions studied. Furthermore, the results suggest the significant ennoblement observed during ‘pseudo-passivation’ in these experiments can be strongly related to the accumulation of iron carbonate (FeCO3) on the steel surface.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2023 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
Keywords: | Carbon steel; CO2 corrosion; Iron carbonate; Pseudo-passivation; Potentiodynamic polarisation |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mechanical Engineering (Leeds) > Institute of Engineering Thermofluids, Surfaces & Interfaces (iETSI) (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 25 Oct 2023 10:45 |
Last Modified: | 25 Oct 2023 10:45 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.corsci.2023.111598 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:204556 |