Investigation on Properties of Anodized 7075 Slurry Cast Aluminum after Sealing

Abstract:

This work investigated the effects of sealing agents on properties of 7075 slurry cast substrate anodized in 1M sulfuric acid solution. The sealing agents tested were hot water, potassium dichromate, teflon, and nickel fluoride. It was found that anodized 7075 slurry cast Al oxide film sealed with teflon gave the highest hardness and the best corrosion resistance. It is possible that the porous oxide film was plugged by teflon, reducing porosity more than hot water, potassium dichromate, or nickel fluoride sealing.

• Periodical: Materials Science Forum (Volume 936)
• Pages: 187-191
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.936.187
• Online since: October 2018
• Authors: Apichaya Khunphet, Somjai Janudom*, Narissara Mahathaninwong
• Keywords: 7075 Aluminum Alloy, Anodic Oxide Film, Anodizing, Slurry Casting

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