Alloys are the
combination of metals. Metals are highly crystalline in nature which is the
source to their ability in deformation plastically and in resisting failure
under heavy loading. Study of metal alloys has now been the interesting part of
the material science. Iron, the metallic alloy in use today has the largest
commercial value. Due to the chemical reactivity of metals like aluminium,
titanium and magnesium have recently developed wile copper has its significance
from considerably long time.