## Abstract TiO~2~ particle–polymer composite coatings were applied to the surface of a 5083 aluminum alloy. After using a knife to create an artificial defect, polarization resistance was monitored in artificial seawater at a temperature of 30 °C. The polarization resistance of the specimen coated
Barrier and self-healing abilities of corrosion protective polymer coatings and metal powders for aluminum alloys
✍ Scribed by A. Yabuki; H. Yamagami; K. Noishiki
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- German
- Weight
- 227 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0947-5117
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✦ Synopsis
Abstract
Several types of coatings, designed to improve the resistance of aluminum alloys to corrosion in seawater, were examined. A coating with a thickness of approximately 30 μm was applied to the surface of aluminum alloy 3003, and after creating an artificial defect by means of a knife‐edge, a corrosion test was carried out in 3% NaCl solution at a temperature of 70°C and pH 1.5. The test results showed that a fluorine resin and sol‐gel coatings both had excellent barrier abilities. The fluorine resin coating had self‐healing abilities, and this was improved by the addition of a metal powder.
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