Q137
The hot working of metals is carried out
A.
At the recrystallisation temperature
B.
Below the recrystallisation temperature
C.
Above the recrystallisation temperature
AnswerD.
At any temperature
Answer: Option C
Solution
Answer: Option C
Solution:
Hot working process metals are plastically deformed above their recrystallization temperature. Being above the recrystallization temperature allows the material to recrystallize during deformation.