Abstract
A novel sealing process for anodised aluminium has been developed based on inclusion of environmentally compliant corrosion inhibitors. Nanoporous oxide films formed by sulphuric acid anodising on aerospace grade AA2024-T3 have been sealed with a combination of corrosion inhibitors and surface hydration. The corrosion resistance was evaluated using electrochemical impedance spectroscopy and accelerated corrosion testing in a neutral salt spray environment. The synergistic anti-corrosion mechanism of the inhibitors within the oxide film on the corrosion prone alloy was determined. The technique described offers numerous opportunities for industrial applications.
| Original language | English |
|---|---|
| Pages (from-to) | 75-83 |
| Number of pages | 9 |
| Journal | Surface and Coatings Technology |
| Volume | 227 |
| DOIs | |
| Publication status | Published - 25 Jul 2013 |
Keywords
- Aluminium
- Anodised
- Corrosion
- EIS
- Inhibitors
- Salt spray