The aqueous corrosion characteristics of a weathering steel in aerated acid-chloride solutions were studied by using immersion corrosion tests, crevice corrosion tests, electrochemical measurements and analytical techniques. The average corrosion rate...
The aqueous corrosion characteristics of a weathering steel in aerated acid-chloride solutions were studied by using immersion corrosion tests, crevice corrosion tests, electrochemical measurements and analytical techniques. The average corrosion rates obtained by immersion test correlated well with the corrosion rated by Tafel extrapolation method. Te corrosion morphology was examined using scanning electron microscopy. Surface morphology showed uniform attack with some shallow pits. Weathering steel was not susceptible to crevice corrosion. Weathering steel was more resistant to acid-chloride solution than plain carbon steel. X-ray diffraction analysis revealed that the rust layer formed in acid-chloride solution was composed of Fe_2O_3, Fe_3O_4.