Chapter Four

Anode Materials

Abstract

The electrochemical aspect of corrosion is demonstrated by the use of anodes for corrosion protection. Anodes are the key part of a corrosion control method called cathodic protection. Anodes are metal alloys often composed of aluminum, zinc, and magnesium, and their construction and quality control seriously impacts the design and performance of a cathodic protection system. The type and mass of the anode to be used for a specific purpose determines the success and failure of any cathodic protection system, and a good anode must maintain the desired current output and consistency throughout the life of the structure to be protected. Therefore, anode size, weight, and chemical composition are very important ...

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