EFFECT OF CHLORIDE IONS ON THE SEMICONDUCTING PROPERTIES OF THE PASSIVE FILMS ON 304 STAINLESS STEEL

The electronic properties of the passive films play a major role in understanding of the metal/oxides/electrolyte interfaces. Presence of chloride ions either in atmosphere or in electrolyte are known for their aggressiveness and ability to cause pitting corrosion. The effect of addition of chloride ions on the semiconducting properties of the passive films formed on 304 SS are investigated by employing photoelectrochemical and capacitance measurements and the results are discussed