Question

Give 5 pros of Corrosion

and give 5 cons of Corrosion on how to solve this problem

Answer 1

Its Pros is the following ;

1. It acts as a barrier for air and moisture

2. It prevents an inner layer of metals from corrosion because surface corrosion forms an oxide layer

3. This is the principle behind "anodizing" steel to guard against rust.

4. Some metals like zinc are used as sacrificial anodes to prevent corrosion to other metal.

5. The principle on which primary batteries work. In which one metal corrodes preferentially to another when both metals are in electrical contact, in the presence of an electrolyte.

Its Cons are following ;

1. It reduces the strength of its structure.

2. It decrease in the life span of metallic objects.

3. It makes it likely collapse.

4. It reduces the beauty and attractiveness for pure form of metals is lost.

5. The important properties of iron may lost and due to uncertainty of corrosion elements.

Following method we can avoid Corrosion;

1. Use non-corrosive metals such as aluminum and stainless steel.

2. Cut off the contact between air and metal by coating.

3. A layer of oil or paint or Grease is applied on the surface of a metal.

4. Large ships use something called a sacrificial anode to prevent corrosion of the hull while at sea.

5. Use cathodic protection, electrical isolation, chemical treatment, materials selection, and good design.