What is corrosion and how does it occur?
Corrosion is the damage caused to a material when it reacts with its environment. In a humid atmosphere, metals are usually corroded by the combined action of water and oxygen. This process may be greatly accelerated by chemical agents such as salts or exhaust fumes. As a result, a metal component may corrode within a relatively short time to the point where it can no longer perform its intended function.
