8. Why aluminum articles do not corrode easily
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The top layer of Aluminum forms thin Aluminum oxide layer instantaneously upon reacting with the environment oxygen. This Al2O3 is hard ceramic and is unreactive to water and lot of other corroding media. So, it protects the underneath Al. They do not corrode easily because they react with the air/oxygen immediately. When they come into contact with air, they form an incredibly resistant and protective layer of aluminium oxide (corindone).
Thank You
The top layer of Aluminum forms thin Aluminum oxide layer instantaneously upon reacting with the environment oxygen. This Al2O3 is hard ceramic and is unreactive to water and lot of other corroding media. So, it protects the underneath Al. They do not corrode easily because they react with the air/oxygen immediately. When they come into contact with air, they form an incredibly resistant and protective layer of aluminium oxide (corindone).
Thank You
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