Publisher : The Korean Institute of Surface Engineering
DOI : 10.5695/JKISE.2007.40.6.262
Title & Authors
Investigation on Optimum Protection Potential Decision of Al Alloy(5083F) in Sea Water by Impressed Current Cathodic Protection Kim, Seong-Jong; Kim, Jeong-Il; Kim, Jong-Shin;
Recently, there has been a new appreciation of aluminum alloys as materials that are capable of reducing the environment load. This is because aluminum alloys are lightweight, easy to recycle, permit miniaturization, and have environmental friendly properties. In this study, we investigated the mechanical and electrochemical properties of 5083F aluminum alloys using slow strain rate test(SSRT) and potentiostatic tests under various potential conditions. In the potentiostatic tests, the current density in the potential range from -0.7 to -1.4V after 1,200 s was low. After considering the results of the potentiostatic tests, maximum tensile strength, yield strength, elongation, time-to-fracture, observation of fractured specimen and fractography analysis, the optimum protection potential range was between -1.3 and -0.7V(Ag/AgCl).