Abstract
Sol-gel based inorganic-organic hybrid coatings were
developed and coated on aeronautical parts including
cadmium plated steel and magnesium alloy. The hybrid
coatings were targeted to provide two kinds of solutions.
Firstly, the aim was to protect the cadmium-plating
against the corrosion initiated especially by runway
de-icing chemicals (formiate and acetate based).
Secondly, the hybrid coating approach was targeted to
provide alternative coating solutions for cadmium plating
as well as hexavalent chromium conversion coatings. In
order to improve the corrosion resistance of the selected
substances, the chemistry of the inorganic backbone of
the hybrid coating was varied by using silane and
aluminium alkoxides. Furthermore, the organic components
of the hybrid coating were also varied. The corrosion
performance of the coated specimens were investigated by
using standardised runway de-icing corrosion test (AMS
G-12) and salt spray test (ISO 9227). Based on the AMS
G-12 test results, the use of the hybrid coatings
improved the corrosion protection of cadmium plating
against runway de-icing corrosion. The salt spray test
showed that the corrosion protection performance of the
hybrid coating on cadmium-plating was similar to uncoated
cadmium plating. In the case of magnesium alloy, the
hybrid coating showed also better corrosion protection in
the both corrosion tests compared to Cr6 conversion
coating.
Original language | English |
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Title of host publication | Proceedings |
Subtitle of host publication | European Corrosion Congress 2012, EUROCORR2012 |
Publisher | European Federation of Corrosion (EFC) |
ISBN (Print) | 978-1-5108-3592-4 |
Publication status | Published - 2012 |
MoE publication type | A4 Article in a conference publication |
Event | European Corrosion Congress Eurocorr 2012 - Istanbul, Turkey Duration: 9 Sept 2012 → 13 Sept 2012 |
Conference
Conference | European Corrosion Congress Eurocorr 2012 |
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Abbreviated title | Eurocorr 2012 |
Country/Territory | Turkey |
City | Istanbul |
Period | 9/09/12 → 13/09/12 |
Keywords
- hybrid coating
- aeronautical
- runway de-icing
- corrosion