What are methods which are adopted to prevent corrosion? - Chemistry 2nd year

 What are methods which are adopted to prevent corrosion?

Prevention of Corrosion:

According to an estimation, each year one-fourth of the annual production of iron is destroyed with corrosion, so steps should be taken to prevent such huge damage to our industry.

Following are the methods:

1. The best way is to avoid the metal coming in contact with air and moisture. However, it is not possible to keep the metals in air-tight places. Thus methods are opted to avoid contact of air and moisture by applying different things on the surface of metal like oil, paint, varnish or enamel.

2. Alloys formation also protects the metal from corrosion.

3. Electroplating (Tin plating or Zinc coating).

4. Use of paints and varnish or enamel.