Effect of indium on the electrochemical properties of aluminum anodes for the protection of carbon steel

• DOI: 10.22533/at.ed.3173292324084

• Palavras-chave: -

• Keywords: -

• Abstract:

  Sacrificial anodes are made of alloys that are more electrochemically active than the materials they are to protect. For the protection of carbon steel, aluminum (Al), magnesium (Mg) and zinc (Zn) alloys are used. Aluminum alloys are widely accepted because they provide protection in different types of water (fresh, brackish and sea) and their low mass. In the "offshore" industry and in the protection of port facilities, aluminum alloy anodes ISO-15589-Part 2 “Petroleum petrochemical and natural gas industries -Cathodic protection of pipeline trasportation systems- Part 2: Offshore pipelines”, have advantages over other types of alloys. In the cathodic protection of hot water tanks of domestic water heaters, this type of alloys have already begun to be used. In this work we explore the effect that indium has as aluminum alloy on its electrochemical properties according to the NACE-TM0190-2017 test method. “Impressed Current Laboratory Testing for Aluminium and Zinc Alloy Anodes”.