Q84
The temperature at which the new grains are formed in the metal is called
A.
Lower critical temperature
B.
Upper critical temperature
C.
Eutectic temperature
D.
Recrystallisation temperature
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
Recrystallization is the process in which deformed grains of the crystal structure are replaced by a new set of stress-free grains that nucleate and grow until all the original grains have been consumed. The process is accomplished by heating the material to temperatures above that of crystallization.