Behaviour of unprotected and anodized aluminium in atmospheres with very different polution degrees
Keywords:Unprotected aluminium, Anodizing and sealing, Atmospheric exposure, Pollution, Durability
In the present research, the responses of unprotected and anodized aluminium specimens are compared after they have been exposed to 12 different atmospheres. The significance of the anodizing and the sealing on the atmospheric corrosion behaviour is analysed. The results show that the anodizing and sealing of aluminium exclude the risk of pitting corrosion in marine atmospheres and that the oxide thickness is not determining, at least during the first year of exposure.
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