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- Title
CATHODIC PROTECTION OF SHIP STRUCTURES BY SACRIFICIAL ANODES.
- Authors
Juraga, Ivan; Stojanović, Ivan; Balek, Denis; Noršić, Tihana; Alar, Vesna; Šimunović, Vinko
- Abstract
Cathodic protection (besides coatings) is the second most common corrosion protection method in shipbuilding. The best results are gained in combination with protective coating systems. Protective coating separates the metal from the environment and cathodic protection changes external damaging factors by reduction of driving forces for corrosion processes. There are two general principles of cathodic protection with which metal construction is polarised. First one is passive protection with sacrificial anodes that are consumed giving the electrons to the cathode. The other one is active, which requires electric power source with which potential in the electric circuit is changed. Both mechanisms have their advantages and disadvantages, which limits their application. That is the reason why in shipbuilding both of the mechanisms are often used. In this paper the principles of cathodic protection with implementation in ship structures protection, properties, selection and disposition of anodes are described. In the experimental work, functionality of cathodic protection by sacrificial anodes (protectors) depending on material and media is described.
- Publication
Brodogradnja, 2009, Vol 60, Issue 1, p54
- ISSN
0007-215X
- Publication type
Article