Engineering Materials
Aluminium bronze contains

90% magnesium and 9% aluminium with some copper
94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe
10% aluminium and 90% copper
92.5% aluminium, 4% copper, 2% nickel, and 1.5% Mg

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Engineering Materials
Recrystallization temperature is one

At which change of allotropic form takes place
At which new spherical crystals first begin to form from the old deformed one when a strained metal is heated
At which crystals grow bigger in size
At which crystals first start forming from molten metal when it is cooled

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