Corrosion Properties of Oxide Ceramic Coatings Based on Alloys of the Al–Cu–Mg and Al–Mg Systems

• Published in: Materials science (New York, N.Y.) Vol. 57; no. 2; pp. 256 - 263
• Main Authors: Bilyi, L. M., Posuvailo, V. M., Ivashkiv, V. R., Kovalchuk, I. V.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01-09-2021; Springer; Springer Nature B.V
• Subjects: Alloys; Aluminum base alloys; Analysis; Aqueous solutions; Ceramic coatings; Ceramic glazes; Ceramics; Characterization and Evaluation of Materials; Chemistry and Materials Science; Copper; Corrosion resistance; Electrochemical impedance spectroscopy; Magnesium; Materials; Materials Science; Protective coatings; Sodium chloride; Solid Mechanics; Specialty metals industry; Structural Materials; aluminum oxides; corrosion; alloy; plasma-electrolyte oxidation; oxide ceramic coatings; X-ray diffraction analysis
• ISSN: 1068-820X; 1573-885X
• DOI: 10.1007/s11003-021-00540-3

By the methods of electrochemical impedance spectroscopy and potentiodynamic methods, we estimate the corrosion resistance of oxide ceramic coatings obtained on Al–Cu–Mg and Al–Mg alloys in the course of ozone bubbling. The results are compared with the data on the corrosion resistance of materials produced by using standard methods. The capacitance of all obtained oxide-ceramic coatings after 90 days is stabilized and becomes equal to 1–4 pF/cm
2
. Their corrosion resistance of the D16 alloy is twice higher than for the AMg5 alloy. All developed coatings are characterized by the elevated protective properties and their resistance in a 3% aqueous solution of sodium chloride is 1–4 G Ω ⋅ cm
2
.