Коррозионно-электрохимическое поведение стали Х13 в растворе  5% NaCl + 0,5% CH3COOH + CH3COONa + CO2

Авторы: Tyurin A.G., Manannikov D.A., Parshukov V.P., Nikolaychuk P.A.
Журнал: Journal of Corrosion Science and Engineering
Том: 19
Номер: 27
Год издания: 2016
Первая страница: 1
Последняя страница: 12
Аннотация: The cross sections of the potential – рН diagram of alloy Cr13 – CH3COOH – CO2– H2O system at the temperatures 20 and 80 °С were plotted. The nature of the surface chemical compounds with the corrosion of stainless steel Cr13 was determined. It was stated that at рН 3 and 4 in the studied temperature range the alloy passivation may proceed due to the formation of iron chromite FeCr2O4phase layer and of iron oxalate FeC2O4poly-layer. A corrosion-electrochemical behaviour of steel Cr13 in a 5% NaCl + 0,5% CH3COOH + CH3COONa + CO2(PCO2= 0,1 МPa) solution at рН 3 and 4 and temperatures 20 and 80 °С was studied by the potentiostatic method. A comparison of the polarization curves with the electrochemical equilibrium diagram of the alloy allowed one to deal with the nature of different corrosion state of the steel in the studied pH and polarization potentials range. © 2016 University of Manchester and the authors.
Добавил в систему: Николайчук Павел Анатольевич

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