The role of chromium in corrosion-electrochemical behavior of carbon steels

I. I. Reformatskaya , A. N Podobaev , A. N. Shishlov , V. D. Chibysheva , O. Y. Artamonov

Izvestiya MGTU MAMI ›› 2013, Vol. 7 ›› Issue (1-4) : 89 -96.

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Izvestiya MGTU MAMI ›› 2013, Vol. 7 ›› Issue (1-4) : 89 -96. DOI: 10.17816/2074-0530-67815
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The role of chromium in corrosion-electrochemical behavior of carbon steels

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Abstract

In neutral (рН 7,55) and alkalescent (pH= 8,74) chloride-containing solutions there was examined the electrochemical corrosion behavior of carbon steel model containing up to 1,05 % Cr. It is shown that the chromium containing in carbon steel hampers their passivation, but microalloying it with titanium has a beneficial effect on their passivity and pitting resistance. The view is suggested that the observed effect of chromium and titanium on passivity and pitting resistance of low-alloy steels is connected with the change of the energy state of the surface of the metal.

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steel / passivity / general corrosion / chemical composition

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I. I. Reformatskaya, A. N Podobaev, A. N. Shishlov, V. D. Chibysheva, O. Y. Artamonov. The role of chromium in corrosion-electrochemical behavior of carbon steels. Izvestiya MGTU MAMI, 2013, 7(1-4): 89-96 DOI:10.17816/2074-0530-67815

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Reformatskaya I.I., Podobaev A.N., Shishlov A.N., Chibysheva V.D., Artamonov O.Y.

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