Engineering Materials
When elements like nickel, chromium, copper and molybdenum are added to the molten cast iron, it produces

White cast iron
Alloy cast iron
Malleable cast iron
Nodular cast iron

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Engineering Materials
Points of arrest for iron correspond to

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
There is nothing like points of arrest

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