Effect of Fe ion concentration on corrosion of carbon steel in CO2 environment. (2nd January 2016) - Rogowska, M.
Abstract : In this work, the corrosion behaviour of steel wires in solutions containing different concentrations of Fe 2+ was investigated by the linear polarisation resistance method, while the evolution of pH was monitored in situ and changes of the Fe 2+ concentration were monitored ex situ . Characterisation of the corrosion scales was performed using microscopic and diffraction techniques. Scale analysis revealed that the passivation of samples, exposed to initially highly Fe 2+ supersaturated solution, occurred when a formation of a double layer took place, resulting in 30 times lower corrosion rate compared to samples tested in solutions without initial Fe 2+ .