Previous studies1  of aluminum galvanic anodes in seawater have shown marked variations in electrochemical characteristics. Other authors have indicated satisfactory performance from aluminum anodes that contain mercury-zinc2,3  or indium-zinc.4  The present authors, in limited studies,1  also found that mercury-zinc aluminum anodes have desirable electrochemical characteristics in seawater. Because previous data showed variable performance of tin-zinc aluminum anodes from one production lot to another and from one manufacturer to another, a study of the consistency of performance of the mercury-zinc anode was included in the present experiment. Several anodes from two lots manufactured at each of two plants (widely separated geographically) were studied to investigate any variability in performance.

Subject
Galvanic anodes, Anode potential, Manufacturing, Zinc anodes, Seawater, Anode resistance, Electrochemical current, Current densities, Anodic current, Steel, Aluminum anodes, Zinc, Anodes
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1970
Association for Materials Protection and Performance (AMPP)
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