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On which factor does the recrystallization temperature depend?

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in Engineering Material & Metallurgy by (773k points)
On which factor does the recrystallization temperature depend?

(a) Purity

(b) Density

(c) Melting point

(d) Grain size

This question was posed to me in homework.

The query is from Nucleation, Growth and Segregation, Recovery, Recrystallisation and Grain Growth topic in division Mechanical Working Processes & Phase Transformations of Engineering Material & Metallurgy

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Right answer is (a) Purity

Explanation: The recrystallization temperature depends on the purity of the material. Very pure materials crystallize around 0.3 Tm, whereas impure materials crystallize around 0.5-0.6 Tm.

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