Q311
Materials after cold working are subjected to following process to relieve stresses
A.
Hot working
B.
Tempering
C.
Normalizing
D.
Annealing
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
A heat treatment used to eliminate part or all of the effects of cold working. Cold working - Deformation of a metal below the recrystallization temperature.
During cold working, the number of dislocations increases, causing the metal to be strengthened as its shape is changed.