Corrosion Resistance of Cerium Based Silane-Zeolite Coatings on AA6061 Alloy

Angela Caprì; Luigi Calabrese; Lucio Bonaccorsi; Edoardo Proverbio

doi:10.4028/www.scientific.net/SSP.227.163

Paper Titles

Galvanic Formation of Zn-Ni/Zn-Co Type Multilayer Alloy Coatings on Steel Substrate
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Microplasma Oxidation of Magnesium Alloy AZ91D by Impulse Current
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XPS Study of Surface Layer Formed on AISI 316L after High-Current Density Electropolishing
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Evaluation of the Growth Mechanism of Ti-Containing Conversion Coatings Using XPS
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Corrosion Resistance of Cerium Based Silane-Zeolite Coatings on AA6061 Alloy
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Corrosion Resistance of Copper Sheet after Laser Treatment
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Thermally Sprayed Coatings as Corrosion Protection for Steel Structures – Influence of the Manufacturing Processes on the Coating Quality
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Zirconium Modified Aluminide Coatings Obtained by the CVD Method
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Study of Interaction between Liquid Magnesium Alloy and Glassy Carbon Particles
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Corrosion Resistance of Cerium Based Silane-Zeolite Coatings on AA6061 Alloy

Abstract:

In the present work we analyzed the anti-corrosive properties, on AA6061, of sol-gel silane-zeolite hybrid coatings doped with cerium nitrate ions as inhibitor. Three different types of composite coatings were prepared by using cerium doped zeolite and/or silane matrix. For each type, four formulations, varying the zeolite amount (in the range 60-90% wt), were tested. All composite coating evidenced a high homogeneity and good adhesion performances. Cerium addiction in the coating formulation did not compromise the hydrophobic properties of the coating. Furthermore the addition of the cerium ions improved the anti-corrosion properties of the composite films inducing a significant stability of the electrochemical behavior.