Comparative Study of the Performance of SAE 1010, API K55 and API N80 Steels Regarding to Corrosion Resistance in the Presence of High CO₂ Pressure

Abstract:

The performance of SAE 1010, API K55 and API N80 steels were evaluated in terms of resistance to corrosion with the use of two CO₂-saturated saline solutions (NaCl and CaCl₂, both at the concentration of 0.5 M) and wet supercritical CO₂ at a temperature of 90°C under 15 MPa for 07 days. Mass loss tests were performed to determine corrosion rates and the films of corrosion product evaluated by scanning electron microscopy and potentiodynamic polarization technique. Lower corrosion rates were obtained in a wet supercritical CO₂ medium. The degree of protection offered by corrosion products films depended not only on the steel but also on the corrosive medium and kind of salt present.

• Periodical: Applied Mechanics and Materials (Volume 830)
• Pages: 71-77
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.830.71
• Online since: March 2016
• Authors: Adriana Barros*, Eleani Maria da Costa, Natalia Lopes, Juliane Bernardes Marcolino, Martimiano K. Moraes, Rodrigo Soriano Fay
• Keywords: API Steel, CO₂ Corrosion, High CO₂ Pressure

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