Wikipedia says that “Corrosion is a natural process, which converts a refined metal to a more chemically-stable form, such as its oxide, hydroxide, or sulfide. It is the gradual destruction of materials (usually metals) by chemical and/or electrochemical reaction with their environment. Corrosion engineering is the field dedicated to controlling and stopping corrosion.“ (https://en.wikipedia.org/wiki/Corrosion, status 2018-10-17)
Many corrosion processes, especially metal corrosion, is caused by electrochemical reactions. The oxidizer is in many cases oxygen. Most metal objects are exposed to the air, which contains oxygen, and thus might corrode.
Corrosion researchers try to understand the reasons for corrosion down to the atomic scale with the goal to develop new methods of effective corrosion protection.
Electrochemcial methods are perfect to studies the different properties of a system, which influence the corrosion processes. Electrochemistry provides within a short time period. Feel free to browse the knowledge base to learn about the possibilities.