This was the last day of the investigation. The nails appear to have corroded an extreme amount since the investigation first started. The iron nails all corroded a large amount, with the Na Cl nail appearing to corrode the most, and the warm water and oxygenated water following behind. The deoxygenated water and cold water corroded the least, but significantly more than any of the aluminium metal pieces.
The aluminium has still proven to be very resistant to corrosion. However crevice corrosion has begun occurring on the surface of the aluminium metal placed in the warm water. The metal is quite thin, which resulted in the formation of small holes, in the middle of the metal. The sodium chloride aluminium metal had signs of galvanic corrosion occurring on the surfaces.
Final Metal in Solution
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