Analysis of modern methods of corrosion protection of submarine pipelines

In the most general definition of corrosion; it is a phenomenon in which metals lose their metallic properties by entering into chemical or electrochemical reactions with the environment. Corrosion is a natural process and is inevitable for many metals. Metals tend to turn into more stable oxide, carbonate and sulfide compounds, which means they are prone to corrosion. All metals, except gold and platinum, are oxidized in nature. The reduction of metal oxides is a labor-intensive process and requires a large amount of energy. From a thermodynamic point of view, as metals move to a higher energy level at the end of this process, their entropy also decreases. The main cause or driving force of all types of corrosion is the desire to reduce the Gibbs free energy of the system. Corrosion is the transformation of a metal into a natural low-energy oxide. It is important what this speed will be. This rate of transformation can be slowed down by anti-corrosion techniques.