Protection of carbon steel from atmospheric corrosion by TiO2 coating

Abstract

Protection of carbon steel (C-steel) from atmospheric corrosion by TiO2 coating was demonstrated. A TiO2-Fe galvanic couple was developed as an atmospheric corrosion monitor sensor to evaluate the photoeffect and corrosion behavior of TiO2/C-steel in atmosphere. Environmental conditions in terms of relative humidity and amount of deposited sea salt where 1 mm wide Fe coupled to 5 mm wide TiO2 could be protected were determined. The results showed that the carbon steel could be protected from atmospheric corrosion by TiO2 coating under conditions of lower amount of deposited sea salt and lower relative humidities.