Alternating Current-Induced Corrosion

Application ID: 110201


Corrosion induced due to alternating current (AC) is evident in the oil and gas industry, particularly when a pipeline is in close proximity to the high power transmission lines.

A numerical model presented here first evaluates the effect of direct current (DC) applied potential on corrosion using a stationary analysis and then evaluates the effect of AC on corrosion using a transient analysis.

The model is then extended to investigate the effect of frequency on AC corrosion rate, bringing out the double layer capacitance contribution particularly at higher frequency.

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