A study of corrosion damage of metal anode coatings in electrolytes
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We propose a mathematical model that makes it possible to study the mechanism of damage and predict the durability of anode coatings by experimentally determining the distribution of the elastic potential of an electric field along the contacting electrodes in an electrolyte. For the case of a zinc anode coating on a metal base, which causes an antisymmetric potential distribution along the electrode in a thick layer of electrolyte, we show that the new areas of corrosion damage arise in addition to the initial damaged areas of the covering at a distance that depends on the physico-geometric characteristics of the system. Analysis of the results obtained makes it possible to estimate the influence of the number and dimensions of the initial damaged areas on the durability of protective anode coatings.
KeywordsZinc Mathematical Model Metal Base Thick Layer Potential Distribution
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