Electrochemical Corrosion Behavior of Carbon Fiber/Vinyl Ester Resin Composite Used for Sucker Rods
The electrochemical corrosion behavior of carbon fiber/vinyl ester resin composite (CF/VE), which has been used for sucker rods in the oil field, was studied under an immersion condition of 3% NaCl aqueous solution at 65°C. Galvanic corrosion experiment between the CF/VE composite and the alloy used as joints linking the composite sucker rods and metal suckers was performed. The results show that in a polarization system, there are a cathode reaction of oxygen absorption on the surface of the composite and an anode reaction, which is mainly depended on the concentration of the hydroxyl (OH¯). A slight acceleration of the absorption behavior and the decrease in the mechanical properties of the CF/VE composite are caused by the galvanic corrosion.
Masayuki Nogami, Riguang Jin, Toshihiro Kasuga and Wantai Yang
T. Y. Zhou, Y. H. Yu, W. M. Chen, X. P. Yang, "Electrochemical Corrosion Behavior of Carbon Fiber/Vinyl Ester Resin Composite Used for Sucker Rods", Advanced Materials Research, Vols. 11-12, pp. 505-508, 2006