Title:
OPTIMIZATION OF HULL PROTECTIVE MATERIALS USING SACRIFICIAL ANODES: REVIEW

Authors:
Chardes Marihot Tampubolon , Sovian Aritonang and Rohman Saleh Arto

Abstract:
The use of steel as a ship's hull has become a necessity in maritime technology. Protection of the hull against corrosion in the marine environment is very important. Many methods have been carried out in the context of such protection, one of which is the use of a sacrificial anode which works based on the principle of cathodic protection. Cathodic protection is the protection of the surface of the hull, especially below the waterline, by using a sacrificial anode, which is a metal that has a lower potential such as aluminum or zinc. The use of cathodic protection is influenced by the speed of the ship where the speed of the ship affects the formation of the layer which has an effect on the design of cathodic protection. so that in optimizing the hull protection material, the selection of sacrificial anodes must pay attention to density, protection potential, thrust stress, capacity and efficiency produced then the most important thing is the selection of materials were based on several studies aluminum has the best ability as a sacrificial anode. The position of the sacrificial anode is also important to note because it affects the corrosion rate of the sacrificial anode.

Keywords:
Cathodic Protection, Corrosion, Sacrificial Anode, Steel

DOI:
http://dx.doi.org/10.37500/IJESSR.2021.4621