Abstract
The paper presents the results of laboratory tests of samples of steel with 1 % Cr in CO 2 containing a model solution. In a comprehensive study of the morphology and chemical composition of corrosion products, as well as measurements of the basic parameters of the model medium revealed the main stages of the formation of the protective layer of corrosion products on steel with 1% Cr. Moreover, thanks to the result, described staging carbon dioxide corrosion on steel with 1% Cr. The main results are presented in three dependencies: 1) isolating the iron ions Fe 2+ in the solution to give an idea of the discreteness of corrosion in the laboratory; 2) saturation of corrosion products with chromium - is the main factor in the formation of protective properties of corrosion products; 3) the change of the corrosion rate. Comparison of the data has led to understand the dependencies, whereby a change in the corrosion rate and saturation of the effect of corrosion products chromium compound on their protective function.
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