Evaluation of Carbon Dioxide Corrosion on N80 Steel

Abstract:

The carbon dioxide corrosion on N80 steel was evaluated under the gas phase and the liquid phase. With the test temperature improved, the corrosion rate increases. Under the condition of gas phase, the corrosion peak is 0.2942mm/a when the temperature is 110°C and pressure is 24 MPa. Under the condition of liquid phase, the corrosion peak is 26.5325mm/a when the temperature is 50°C and pressure is 24 MPa. With the increase of CO₂ partial pressure, the corrosion rate of N80 steel was falling. Microscopic analysis shows that the corrosion products of CO₂ on N80 steel have a large white flocculent compounds and the corrosion surface have a lot of cracks and holes.

• Periodical: Applied Mechanics and Materials (Volumes 490-491)
• Pages: 311-314
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.490-491.311
• Online since: January 2014
• Authors: Zhen Zhong Fan, An Qi Tong, Yan Cui, Jun Feng Yang
• Keywords: Carbon Dioxide, Corrosion Rate, N80 Steel, Partial Pressure

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