Can aluminum corrode?

Yes, aluminum can corrode, but it typically forms a protective oxide layer on its surface when exposed to air, which prevents further corrosion. This layer of aluminum oxide is very thin but strong and stable, making aluminum highly resistant to corrosion. However, under certain conditions such as exposure to certain chemicals or in the absence of oxygen, aluminum can still corrode. Corrosion can also occur if the protective layer is damaged or compromised.