Open AccessThe role of chromium in corrosion-electrochemical behavior of carbon steels
Author(s) -
I. I. Reformatskaya,
А. Н. Подобаев,
A. N. Shishlov,
V. D. Chibysheva,
O. Y. Artamonov
Publication year - 2013
Publication title -
izvestiâ mgtu "mami"
Language(s) - English
Resource type - Journals
eISSN - 2949-1428
pISSN - 2074-0530
DOI - 10.17816/2074-0530-67815
Subject(s) - passivity , chromium , passivation , materials science , metallurgy , corrosion , electrochemistry , carbon steel , pitting corrosion , titanium , metal , alloy , chloride , carbon fibers , electrode , composite material , chemistry , layer (electronics) , composite number , electrical engineering , engineering
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.