Effect of Oxygen Ion Implantation on Physicochemical Structure and Corrosion-Electrochemical Behavior of High-Chromium Steelстатья
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Дата последнего поиска статьи во внешних источниках: 17 августа 2021 г.
Аннотация:The effect of oxygen ion implantation on the physicochemical structure of the surface and the corrosion-electrochemical behavior of high-chromium Fe13Cr steel has been examined by potentiometry,atomic force microscopy, X-ray photoelectron spectroscopy, and microhardness measurements. Ion implantationleads to a significant reduction in corrosion losses. Optimal from the point of surface passivation and,consequently, reduction of corrosion losses of the material is the regime of steel treatment with oxygen ionswith a dose of D = 5 × 1016 cm–2, after which the sample demonstrates the most stable behavior during localand general corrosion. It has been shown that the increase in the corrosion resistance of steel is due to theredistribution of elements in the surface layers caused by ion implantation and the intense formation of spinelsof variable composition consisting of iron and chromium oxides with different oxidation states. In this case,the microhardness of the surface layers of the steel after ion implantation does not change significantly.