The incidence of each type of metal corrosion varies, and the importance of each type will vary across systems and environments. On the other hand, there are striking similarities in the distribution of corrosion damage across similar industries, and by comparing them, it can be seen that corrosion problems in similar industries are very similar.

The gradual reduction (decomposition) of metals due to chemical and electrochemical interactions is called corrosion, which causes significant financial losses to industries every year. For example, in water systems, various types of corrosion are defined as an electrochemical process.