Abstract
Corrosion is one of the problems that is often encountered in the use of ferrous metal materials in everyday life both at home and industrial scale. Many methods for inhibiting the corrosion process in iron, one of which is by cathodic protection with a sacrificial method. The sacrificial material used contains more negative potential energy than iron. In this study AISI 1020 steel which will be protected with zinc as sacrificial anodel, which is assisted by AZ31 magnesium and aluminum 8011 additional metal. The testing process is carried out by the weight loss method, where the material is soaked for 2 months. The results showed no weight reduction in aluminum 8011, AISI 1020 steel and zinc when aluminum 8011 was added to this protection. But a weight reduction occurred in magnesium AZ3 1 when the magnesium was used as additional metal.
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