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To be pedantic, aluminum corrodes very rapidly in air, but the surface rust (aluminum oxide) is stable and shields the underlying metal. Aluminum oxide mixed wi
by kps 10y ago
To be pedantic, aluminum corrodes very rapidly in air, but the surface rust (aluminum oxide) is stable and shields the underlying metal. Aluminum oxide mixed with whatever dye Apple used, on the other hand…
- blackguardx 10y agoForming an oxide layer isn't corrosion. Corrosion results in loss of material like the pitting you see in that photo. You are correct that the oxide layer prevents corrosion, though.
- kps 10y agoTouché; I've been out-pedanted!