Engineering Materials
Recrystallization temperature can be lowered by

Working at lower temperature
All of these
Purification of metal
Grain refinement

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Engineering Materials
Carbon steel is

An alloy of iron and carbon with varying quantities of phosphorus and sulphur
Extensively used for making cutting tools
Refined from cast iron
Made by adding carbon in steel

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Engineering Materials
A coarse grained steel

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

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