The effect of octane acid-based inhibitors on the corrosion and electrochemical properties of B4C-BN–Bi2O3–MnO2 oxide ceramic coatings on non–alloy steel
https://doi.org/10.61852/2949-3412-2024-2-3-174-184
Abstract
The effect of mixed inhibitors based on octanoic acid and nitrogen compounds with a negative degree of oxidation on the corrosion properties of a ceramic oxide coating of the composition B4C–BN–Bi2O3–MnO2 has been studied. The coating was synthesized by laser sintering of a powder mixture on the surface of low-carbon non-alloy steel. As a result of laser treatment, an oxide-ceramic layer is formed on the metal surface, which has antifriction properties and high hardness. The phase composition and surface relief of the resulting composite are investigated. A decrease in the corrosion resistance of the resulting composite under conditions of electrochemical corrosion in a neutral buffer solution medium compared with untreated steel has been established. To increase the corrosion resistance, an inhibitory treatment method was applied. The following compositions were used as inhibitors: octanoic acid, octanoic acid–hexamethylenetetramine, octanoic acid– hydrazine hydrate and octanoic acid-2,4-dinitrophenylhydrazine. The inhibitors were applied by impregnation methods followed by heating of the samples to 120°C. All the studied compound inhibitors increased the corrosion resistance of the material to electrochemical corrosion in a neutral borate buffer solution.
About the Authors
S. M. Reshetnikov
Udmurt State University
Russian Federation
Russian Federation
426034, Izhevsk, Universitetskaya str., 1
A. V. Tyukalov
Udmurt State University
Russian Federation
Russian Federation
426034, Izhevsk, Universitetskaya str., 1
E. V. Kharanjevsky
Udmurt State University
Russian Federation
Russian Federation
426034, Izhevsk, Universitetskaya str., 1
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Review
For citations:
Reshetnikov S.M., Tyukalov A.V., Kharanjevsky E.V. The effect of octane acid-based inhibitors on the corrosion and electrochemical properties of B4C-BN–Bi2O3–MnO2 oxide ceramic coatings on non–alloy steel. Title in english. 2024;(3):174-184. (In Russ.) https://doi.org/10.61852/2949-3412-2024-2-3-174-184
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