Engineering Materials
Points of arrest for iron correspond to

There is nothing like points of arrest
Stages at which allotropic forms change
Stages at which further heating does not increase temperature for some time
Stages at which properties do not change with increase in temperature

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Engineering Materials
Specify the sequence correctly

Grain growth, stress relief, recrystallization
Grain growth, recrystallization, stress relief
Stress relief, grain growth, recrystallization
Stress relief, recrystallization, grain growth

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