Protection of metallic materials with chamber corrosion inhibitors. An authors’ review

• A.V. Karaulova¹, P.S. Demenshina¹, A.A. Shishkin¹, A.Yu. Luchkin¹, O.S. Makarova¹, N.N. Andreev¹, O.A. Goncharova¹, S.S. Vesely¹ and D. Zhang²

¹ Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31-4, Leninsky prospect, 119071 Moscow, Russia
² Shanghai University of Electric Power, Shanghai 201306, China

Abstract: An authors’ review of studies on the protection of metallic materials with chamber corrosion inhibitors is presented. The development of this field is traced back to the first studies on treatment of metals with vapors of low-volatile organic inhibitors at elevated temperatures. Research results on the protection of steel, copper, brass, zinc, galvanized steel, and aluminum and magnesium alloys are analyzed. Data on the effects of inhibitor nature and chamber treatment temperature and duration on the protective aftereffect of the surface layers formed are summarized. Chamber inhibitors based on amines, nitrogen-containing heterocyclic compounds, carboxylic acids, their mixtures, and alkoxysilanes are considered. Particular attention is paid to the mechanisms of formation and action of nanoscale protective layers, their ability to self-organize, stabilize the passive state of metals, and block the active surface. The use of accelerated and outdoor corrosion tests, voltammetry, electrochemical impedance spectroscopy, ellipsometry, and methods for studying the composition and structure of surface layers is analyzed. Criteria for evaluating the efficiency of chamber inhibitors and the mutual effect of components in mixed formulations, as well as approaches to determining the blocking and activation contributions to corrosion inhibition, are considered. It is shown that chamber treatment is a promising method for forming stable protective surface layers with a long protective aftereffect on metals.

Keywords: chamber corrosion inhibitors; chamber treatment; atmospheric corrosion; protective aftereffect; adsorption protective layers; electrochemical impedance spectroscopy; metal passivation; mixed inhibitors; surface blocking

Int. J. Corros. Scale Inhib., 2026, 15, no. 4, 118-145
doi: 10.17675/2305-6894-2026-15-4-5

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