Role of cementite morphology on corrosion layer formation of high-strength carbon steels in sweet and sour environments
<p dir="ltr">The effect of cementite morphology on the corrosion layer formation of four high-strength carbon steels was studied in an aqueous solution containing CO<sub>2</sub> and CO<sub>2</sub> / H<sub>2</sub>S . The linear polarization resistan...
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2023
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| Summary: | <p dir="ltr">The effect of cementite morphology on the corrosion layer formation of four high-strength carbon steels was studied in an aqueous solution containing CO<sub>2</sub> and CO<sub>2</sub> / H<sub>2</sub>S . The linear polarization resistance and weight loss data reveal that as the cementite phase fraction is increased, the corrosion rate increases in CO<sub>2</sub> environment, while no trend is observed in the CO<sub>2</sub> / H<sub>2</sub>S environment. The results indicate that a porous and, non protective corrosion layer forms in the CO<sub>2</sub> environment, whereas a protective layer forms in the CO<sub>2</sub> / H<sub>2</sub>S environment. A mechanism that explains the role of cementite morphology on corrosion layer formation in a CO<sub>2</sub> environment is proposed for the studied materials.</p><h2>Other Information</h2><p dir="ltr">Published in: Corrosion Science<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.corsci.2023.111031" target="_blank">https://dx.doi.org/10.1016/j.corsci.2023.111031</a></p> |
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