Abstract
We propose a mathematical model for the analytic investigation of the processes of corrosion fracture of metals under lacquer coatings in seawater on the basis of an experimentally established dependence of the corrosion rate of a metal without coatings on the concentration of a passivator. It is shown that, for the examined type of coatings, the corrosion rate first linearly increases with time but then, on attainment of a certain level, its subsequent increase is substantially decelerated. If the corrosion rate of the uncoated metal is higher than 0.05 mm/yr, then the rate of corrosion under coatings is lower by at least an order of magnitude.
Published Version
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