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Role of cementite morphology on corrosion layer formation of high-strength carbon steels in sweet and sour environments

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submitted on 2024-08-22, 09:45 and posted on 2024-08-22, 09:45 authored by Shabnam Karimi, Iman Taji, Tarlan Hajilou, Simona Palencsár, Arne Dugstad, Afrooz Barnoush, Kim Verbeken, Tom Depover, Roy Johnsen

The effect of cementite morphology on the corrosion layer formation of four high-strength carbon steels was studied in an aqueous solution containing CO2 and CO2 / H2S . The linear polarization resistance and weight loss data reveal that as the cementite phase fraction is increased, the corrosion rate increases in CO2 environment, while no trend is observed in the CO2 / H2S environment. The results indicate that a porous and, non protective corrosion layer forms in the CO2 environment, whereas a protective layer forms in the CO2 / H2S environment. A mechanism that explains the role of cementite morphology on corrosion layer formation in a CO2 environment is proposed for the studied materials.

Other Information

Published in: Corrosion Science
License: http://creativecommons.org/licenses/by/4.0/
See article on publisher's website: https://dx.doi.org/10.1016/j.corsci.2023.111031

History

Language

  • English

Publisher

Elsevier

Publication Year

  • 2023

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