Sacrificial Anodes
Cathodic protection can be achieved by a more traditional way: through sacrificial anodes. This method entails connecting the protected metal structures with a more active metal or alloy.
When two metals are electrically connected to each other in an electrolyte, the more active metal supplies a current and dissolves to effectively protect the other metal.
Sacrificial anodes are cast with high-efficiency alloys and are characterized by being light-weight and having a high amperage output. They can function economically and efficiently without any maintenance during the operating period to control the corrosion. Furthermore, after installation, there are no labor costs involved and no electrical supply is required.
Applications:
- Vessels
- Port installations
- Offshore engineering
- Underground structures
- Tanks
- Power plants, refineries and chemical plants
- Reinforced concrete structures and buildings’ piling foundations
Learn more about Sacrificial Anodes.
Also see Corrosion’s Impressed Current Cathodic Protection System.
