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Effect of bare metal surface on the dissolution in aqueous citrate solutions of magnetite films on carbon steel

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Abstract

The potential–time dependence of magnetite under varying conditions of pH and Fe2 concentration and of magnetite layers on carbon steel with initially exposed small bare metal areas have been studied. The experiments simulate the case of magnetite scales partially removed from surfaces in the course of chemical cleaning when coupling conditions occur with area ratios variable with time. The interpretation is based on an equivalent electric circuit composed of internal current generators of faradaic origin and capacitors simulating the electric double layer at the metal/solution and oxide/solution interfaces.

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  1. Institute of Atomic Physics, IFTM, POBox MG-6, Bucharest, Romania

    I. H. PLONSKI

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PLONSKI, I.H. Effect of bare metal surface on the dissolution in aqueous citrate solutions of magnetite films on carbon steel. Journal of Applied Electrochemistry 27, 1184–1192 (1997). https://doi.org/10.1023/A:1018471617720

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