Corrosion performance of epoxy/BTESPT/MAO coating on AZ31 alloy

Corrosion performance of epoxy/BTESPT/MAO coating on AZ31 alloy

To enhance the anticorrosion property of epoxy/microarc oxidation (MAO) coating on AZ31 magnesium alloy, bis-(triethoxysilylpropyl)tetrasulphide silane is chosen for surface pretreatment to the MAO coating. Fourier transform infrared, SEM, electrochemical tests and immersion test were used to invest...

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Veröffentlicht in:Surface engineering 2016-01, Vol.32 (1), p.38-46
Hauptverfasser: Chen, M.-A., Ou, Y.-C., Yu, C.-Y., Xiao, C., Liu, S.-Y.
Format: Artikel
Sprache:eng
Schlagworte:
Coating
Corrosion
Corrosion prevention
Epoxy
Fourier transforms
Immersion tests (corrosion)
Infrared
Magnesium alloy
Magnesium base alloys
Oxide coatings
Silane
Silanes
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Zusammenfassung:To enhance the anticorrosion property of epoxy/microarc oxidation (MAO) coating on AZ31 magnesium alloy, bis-(triethoxysilylpropyl)tetrasulphide silane is chosen for surface pretreatment to the MAO coating. Fourier transform infrared, SEM, electrochemical tests and immersion test were used to investigate the structure and corrosion performance of the coatings. The results show that the anticorrosion property of the epoxy/MAO coating on AZ31 magnesium alloy can be improved effectively by the silane pretreatment to MAO coating.
ISSN:0267-0844
1743-2944
DOI:10.1179/1743294415Y.0000000105