electrochemical corrosion

Electrochemical corrosion occurs when a metal reacts with its environment, such as oxygen and moisture, causing it to gradually break down. This process involves two main parts: an anode, where metal atoms lose electrons and turn into ions, and a cathode, where electrons are consumed, often involving oxygen and water. Together, these reactions create an electrical current that accelerates the metal's deterioration. For example, iron rusts when exposed to water and oxygen, forming iron oxide. Corrosion can weaken structures and materials, which is why protective coatings and corrosion-resistant alloys are often used to prevent it.