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Journal Articles Electrochimica Acta Year : 2001

Application of a submerged impinging jet for corrosion studies: development of models for the impedance response

Abstract

A model was established for the impedance response associated with convective diffusion to a disk electrode subjected to a submerged impinging jet. The model accounted for a finite Schmidt number by employing a series expansion in terms of Sc−1/3. The model was incorporated into a quantitative analysis of impedance data for the corrosion of a steel disk in brine saturated with CO2. This work showed that the impedance response was influenced by diffusion through a stagnant layer as well as through a convective region. The Schmidt number obtained was very large, suggesting that the thick layer, observed by in situ video microscopy, is a colloidal gel.

Dates and versions

hal-04258074 , version 1 (25-10-2023)

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Mark E Orazem, Jose Cardoso Filho, Bernard Tribollet. Application of a submerged impinging jet for corrosion studies: development of models for the impedance response. Electrochimica Acta, 2001, 46 (24-25), pp.3685-3698. ⟨10.1016/S0013-4686(01)00647-8⟩. ⟨hal-04258074⟩
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