Influence of SPTFE on corrosion behavior of composite coatings during salt-spray test
ST PETERSBURG POLYTECHNIC UNIVERSITY JOURNAL-PHYSICS AND MATHEMATICS(2022)
Abstract
Plasma electrolytic oxidation has been used to create a sublayer on aluminum alloy to form a composite coating to improve the corrosion properties of the processed material. The evolution of protective characteristics of the resulting coatings were examined by potentiodynamic polarization during the exposure in a salt spray chamber. The absence of pittings after a 10-day test for the entire series of composite coatings on aluminum alloy confirms the high level of barrier properties of the coated samples.
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Key words
plasma electrolytic oxidation (PEO),composite coating (CC),potentiodynamic polarization,salt spray testing
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