Abstract
Wear resistances of CO2 corrosion product films formed on P110 carbon steel at different CO2 partial pressures were investigated in water sand two-phase flow by weight loss method, and the microstructures and compositions of corrosion product films were analyzed by scanning electron microscope (SEM) and X-ray diffraction (XRD), respectively. The results showed that the wear rate of CO2 corrosion product films increased until a maximum and then decreased with the increasing of the film-forming pressure, and the maximum occurred at 2 MPa. However, the maximal corrosion rate and the loose and porous CO2 corrosion product films were obtained at 4 MPa. And the wear rate decreased and then went to be flat with increasing test time. Furthermore, the microstructures and compositions of corrosion product films and the impact and wear of sand particles played an important role on wear resistances. In addition, the wear rate and corrosion rate were fitted by cubic polynomial, respectively, which were well in accordance with the measured results.
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Funded by China Postdoctoral Science Foundation (No.2014M552477), Natural Science Basic Research Plan in Shaanxi Province of China (Nos.2014JQ2056 and 2014JQ6219) and Key Laboratory Scientific Research Program of Shaanxi Provincial Education Department (No.14JS086)
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Li, J., Zhu, S., Liu, L. et al. Wear resistances of CO2 corrosion product films in the presence of sand particles. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 30, 968–973 (2015). https://doi.org/10.1007/s11595-015-1259-6
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DOI: https://doi.org/10.1007/s11595-015-1259-6