Which conditions accelerate iron corrosion and which ones slow down / hinder it?

Question

Which conditions accelerate iron corrosion and which ones slow down / hinder it?

Answer 1

4Fe + 3O₂ ==> 2Fe₂O₃ this is the rusting process of iron (Fe)

Oxygen and water accelerate corrosion of iron, and obviously, the lack of oxygen and water slow it down. That would be a vacuum, for example.