Abstract
The atmospheric corrosion behaviour of AA6063 with exposure to FeCl3 containing deposits has been investigated using X-ray computed tomography (X-ray CT) analysis. A voluminous corrosion product cap with AlCl3, Al(OH)2Cl and/or Al(OH)Cl2 and large pores was observed, located on top of a layer of iron oxide deposits at the surface/interface of the aluminium sample. The iron oxide layer appeared continuous, with regions not covered by this layer showing excessive corrosion, most likely a direct result of a redox driven local corrosion cell. The work reported here aims to study the effect of FeCl3 on the rate of corrosion product formation and its effect on the structural integrity of AA6063 under atmospheric marine exposure conditions.
| Original language | English |
|---|---|
| Title of host publication | European Corrosion Congress 2018 |
| Publication status | Accepted/In press - 8 Sept 2018 |
Keywords
- FeCl3
- Ferric chloride
- X-ray Computed Tomography (XCT)
- Atmospheric Corrosion
- Marine environment
- Aluminium Alloy 6063