Engineering Materials
Addition of copper to aluminium results in

Improving machinability
Improvement of casting characteristics
Improvement of corrosion resistance
One of the best known age and precipitation hardening systems

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Engineering Materials
A coarse grained steel

Is more ductile and has a greater tendency to distort during heat treatment
Is more ductile and has a less tendency to distort during heat treatment
Is less tough and has a less tendency to distort during heat treatment
Is less tough and has a greater tendency to distort during heat treatment

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