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Old 07-15-14, 02:33 PM
  #24  
Wilfred Laurier
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Originally Posted by fietsbob View Post
Both metals Oxidize, it's called Corrosion in everything But steel and Iron .. only then the corrosion is called Rust.
however
the oxide layer on aluminum
protects the metal underneath from oxidising
unless it is rubbed off

while our orange friend rust
continues eating the iron even after the first layer has been converted
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