Abstract
This work is an extension of that reported earlier (BCJ, 1979, 14, 149) which demonstrated the discrepancies between corrosion rates of mild steel in 3·5% NaCl, as derived from weight loss measurements and from potential–time and potentiostatic polarisation curves, when the metal was embedded in a variety of powdered solids. Further discrepancies have now been found related to variations in specimen geometry and the difficulty of reproducing long-term chemical and electrochemical interactions between powder and substrate.
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