KOROSI GALVANIS PADA STEEL AISI 1018 - Cu DENGAN VARIASI PEMBIASAN SCRAP STEEL SEBAGAI ANODA KEDUA PADA MEDIUM NaCl

Abstract

Corrosion is the degradation / deteorization / destruction of material which caused by the environment. So that is very harmful for the world and industrial household. It needs to be done for prevention in order to reduce the potential for corrosion. One way that many do to cope with the corrosion of the cathode protection method. Which of these cathode protection method using anode victims. The purpose of this research is to determine the effectiveness of the victim at the anode cathodic protection by galvanic corrosion tests of AISI 1018 steel and copper immersion second victim in a steel scrap substitute seawater environment. Performance is measured is the potential protection, galvanic current, the anode capacity, the rate of consumption, and time of induction. The results showed by using the second victim of refraction anode corrosion resistance reasonable value (fair) to improve the corrosion rate occurred compared to when using a single anode victims. It is also found that this method gives good potential protection and shows inducted time pretty well. From the micro photographs, it is found that steel AISI 1018 corrode locally by pitting formation