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The corrosion potential of AISI(1) 316 stainless steel (SS) and the oxygen reduction rate, as measured by the cathodic polarization curve, have been determined with and without the formation of a natural marine bacterial film on the surface. The data show that the amount of scatter in the corrosion potential increases dramatically in the presence of the biofilm and that the spotty nature of the film encourages pit initiation. Several possible mechanisms for the effect of the biofilm discussed.
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Dexter et al. (1988) studied this question.
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