Question

Name the constituents of:

(b) Duralumin

Answer 1

Alloy:

• An alloy is a homogeneous mixture of two or more metals or metal and non-metal.
• Duralumin is an alloy of aluminium($\mathrm{Al}$),magnesium($\mathrm{Mg}$),manganese($\mathrm{Mn}$) and copper($\mathrm{Cu}$).
• The composition of aluminium ($\mathrm{Al}=95\%$),copper($\mathrm{Cu}=4\%$),magnesium($\mathrm{Mg}=0.5\%$) and manganese($\mathrm{Mn}=0.5\%$).
• It is a light and hard alloy. It resists corrosion