Analysis of the Structure and Anticorrosion Properties of Oxide Coatings on AISI 304 Steel

• Published in: Materials science (New York, N.Y.) Vol. 57; no. 2; pp. 248 - 255
• Main Authors: Shtefan, V. V., Kanunnikova, N. O., Goncharenko, T. Ye
• Format: Journal Article
• Language: English
• Published: New York Springer US 01-09-2021; Springer; Springer Nature B.V
• Subjects: Analysis; Austenitic stainless steels; Characterization and Evaluation of Materials; Chemistry and Materials Science; Coatings; Composition; Corrosion and anti-corrosives; Corrosion prevention; Corrosion rate; Corrosion tests; Electrical conductivity; Electrical resistivity; Electrochemical oxidation; Electrolytes; Impedance spectroscopy; Materials Science; Molybdenum; Nickel alloys; Oxide coatings; Solid Mechanics; Spectrum analysis; Structural Materials; Titanium; morphology; stainless steels; titanium; impedance; aluminum; oxide coatings; polarization resistance; molybdenum
• ISSN: 1068-820X; 1573-885X
• DOI: 10.1007/s11003-021-00539-w

We study the electric conductivity and defectiveness of coatings obtained by the method of electrochemical oxidation on stainless steel by the method of impedance spectroscopy. The morphology and X-ray phase diffraction compositions of oxide coatings formed in Mo-, Al-, and Ti-containing electrolytes are analyzed. It is shown that the addition of valve metals to the coating compositions decreases the corrosion rate of oxidized steel in chloride media. The results obtained by the method of impedance spectroscopy correlate with the results of corrosion tests.