Corrosion characteristics of cold gas spray coatings of reinforced aluminum deposited onto carbon steel
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Undergraduate course
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Elsevier
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Article
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Acesso aberto
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Abstract
The morphology, chemical, mechanical and corrosion characterization of starting materials, and Al and Al-Al2O3/Al coatings obtained by Cold Gas Spray and applied on common steel substrate were performed. An Al coating on a ground or grit blasted substrate, and Al-Al2O3/Al coating on ground mild carbon steel have been compared. The electrochemical results showed that the coatings protect the substrate for immersion times >2000 h due to the dense structure obtained by Al and Al-Al2O3. The electrolyte reaches the substrate only after 2000 h of immersion without wetting completely the coating/substrate interface. Coatings have resisted 3000 h of salt fog test.
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English
Citation
Corrosion Science, v. 114, p. 57-71.
