Barrier Coatings for the Protection of Steel and Aluminum Alloys in the Marine Atmosphere

BA Shaw; DM Aylor

doi:10.1520/STP25850S

SYMPOSIA PAPER Published: 01 January 1987

STP25850S

Barrier Coatings for the Protection of Steel and Aluminum Alloys in the Marine Atmosphere

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The marine atmospheric corrosion resistance of a variety of metallic, ceramic, and metallic/ceramic coatings on aluminum and steel alloys is investigated to assess the long term protection capabilities of these barrier coatings. Results of 6 to 42 month exposures indicate that the following coatings provide the best marine atmospheric corrosion protection: thermal sprayed aluminum, zinc, zinc-aluminum pseudo alloy, aluminum oxide (Al₂O₃), and both zinc-based and aluminum-based metallic/ceramic coatings. The application of a low viscosity sealer to one of the ceramic coatings extends the protective capability of the coating.

Author Information

Shaw, BA

David Taylor Naval Ship Research and Development Center, Bethesda, MD

Aylor, DM

David Taylor Naval Ship Research and Development Center, Bethesda, MD

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Details

Developed by Committee: G01

Pages: 206–219

DOI: 10.1520/STP25850S

ISBN-EB: 978-0-8031-5023-2

ISBN-13: 978-0-8031-0966-7

Barrier Coatings for the Protection of Steel and Aluminum Alloys in the Marine Atmosphere

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