What is marine corrosion primarily caused by?

Marine corrosion is primarily caused by the deterioration of metals due to the constant exposure to seawater. Seawater contains a variety of corrosive elements, including salts and ions, that facilitate electrochemical reactions on metal surfaces. When metals are submerged in seawater or exposed to a marine environment, they can undergo oxidation, resulting in the formation of rust and other corrosion products that degrade the metal over time.

Understanding this process highlights the importance of protective measures such as coatings, cathodic protection, and regular maintenance to mitigate corrosion in marine equipment and structures. Other factors, such as pollution and tropical climates, can exacerbate corrosion but are not the primary cause of marine corrosion itself. The intrinsic properties of seawater and its components play a pivotal role in the corrosion process, making seawater the key player in this context.