Materials Selection

Abstract

Corrosion problems can be solved in the following ways:

• 1. Select a material that is resistant to the corrosive environment.

• 2. Give metal a protective coating.

• 3. Change the service conditions, such as temperature, pressure, or velocity.

• 4. Change the environment chemistry, such as pH, concentration, aeration, or impurities.

• 5. Add a corrosion inhibitor.

• 6. Shift the electrical potential of the metal by cathodic or anodic protection.

• 7. Modify the design of the equipment or system.

• 8. Let it corrode and replace it (often a viable alternative!).