Improvement of MIC Behavior of Low Alloy Steel with Zn-Rich Epoxy Coating
The microbiological influenced corrosion (MIC) behavior of the low alloy steel with or without Zn-rich epoxy coating in the sterilized medium and sulfate-reducing bacteria (SRB) solution was investigated with electrochemical impedance spectroscopy (EIS), scanning electron microscope (SEM) and X-rays diffraction (XRD). Results show that the bacteria in the marine environment affect the corrosion behavior of the ship plate steel and the corrosion resistance of specimen coated with Zn-rich epoxy was improved greatly. The coating protected the test steel effectively in the microbial environment with the cathodic protection in the earlier period and physical barrier protection in the later period.
J. Alfaiate, M.H. Aliabadi, M. Guagliano and L. Susmel
D. Liu et al., "Improvement of MIC Behavior of Low Alloy Steel with Zn-Rich Epoxy Coating", Key Engineering Materials, Vols. 348-349, pp. 509-512, 2007