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The significance of ferrous ion oxidation during corrosion of carbon steel in aerated near-neutral aqueous solutions

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submitted on 2024-07-28, 10:48 and posted on 2024-07-28, 12:19 authored by Ke Wang, Hanan Farhat, Mariano Iannuzzi, Katerina Lepkova

Numerical models were developed to investigate the significance of ferrous ion oxidation in carbon steel corrosion in near-neutral aerated aqueous solutions. The results demonstrated that the inclusion of ferrous ion oxidation improved the accuracy of pH predictions in deep crevices under cathodic protection and Evan's drop exposure conditions, closely matching experimental observations. The reaction rate for ferrous ion oxidation was found to be between 1 × 1014 and 2 × 1014 (mol/L)-2 atm−1 min−1. These findings highlight the importance of considering ferrous ion oxidation when modelling carbon steel corrosion in near-neutral aerated aqueous solutions.

Other Information

Published in: Electrochemistry Communications
License: http://creativecommons.org/licenses/by/4.0/
See article on publisher's website: https://dx.doi.org/10.1016/j.elecom.2023.107637

Funding

Qatar Environment and Energy Institute (N/A).

History

Language

  • English

Publisher

Elsevier

Publication Year

  • 2024

License statement

This Item is licensed under the Creative Commons Attribution 4.0 International License.

Institution affiliated with

  • Hamad Bin Khalifa University
  • Qatar Environment and Energy Research Institute - HBKU
  • Corrosion Center - QEERI

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    Qatar Environment and Energy Research Institute - HBKU

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