Corrosion is the destruction or deterioration of a material because of reactions with its environment Many fields are applied to understanding corrosion 1. Thermodynamics 2. Electrochemistry 3. Metallurgy 4. Physical chemistry Fortunately this can be summarized by the following: Metals (except gold and platinum) are found in nature as oxides. So, there is a driving force for the metal to return to its natural state as a metal oxide The way in which metals return to their natural state determines the type of corrosion.
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