Question

List three reasons why an alloy is done?

Answer 1

• Enhance the hardness of a metal:
An alloy is harder than its components.
•Lower the melting point: Pure metals have a high melting point.
•Enhance tensile strength: 
Alloy formation increases the tensile strength of the parent metal.
• Enhance corrosion resistance: 
Alloys are more resistant to corrosion than pure metals.

Answer 2

Three reasons are:-
1) To prevent them from being corroded.
2) Long lasting life.
3) It is cheap.