| Summary: | The resIstance to localized corrosion of the commercial AL29-4C, Sea Cure and E-Brite ferritic stainless steels are evaluated in the present work. The low content of interstitials (C, N), the high chromium and molybdenum contents plus the addition of niobium and/or titanium make these alloys technically very attractive. In many environments these stainless steels behave better than other, more expensive, resistant materials. Data were obtained by electrochemical techniques assisted by optical microscopy. Samples were exposed to chloride-containing environments with or without the addition of chlorine dioxide as an oxidant. The influence of the chloride concentration, pH, temperature and chlorine dioxide concentration on the localized corrosion resistance of the ferritic stainless steels are shown.
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