DISSOLVED OZONE EFFECT ON CORROSION OF METALS IN WATER.

Abstract

The dissolved ozone effect was investigated by immersion tests in the stagnant state, slow flow state and fast flow state, and by electrochemical measurements in the stagnant state. Corrosion rates for low alloy steels, copper and brass increased with increasing ozone concentration at various flow rates. Carbon steel showed the same behavior in the stagnant state. Carbon steel in deionized water at fast flow rates was passivated. Stainless steel achieved a stronger passivation state by contact with ozone.