Which of the following statements are true for annealing of steels?
A. Steels are heated to 500°C to 700°C
B. Cooling is done slowly and steadily
C. Internal stresses are relieved
D. All of these
Answer: Option D
Solution (By Examveda Team)
Annealing of steels Increased cold shaping possibilities because intermediate annealing can be utilized to improve the forming properties after the material is compressed during other operations such as cold heading.Annealing of steels Reduced chance of distortion during secondary operations such as machining.
Annealing of steels Controlled atmosphere annealing decreases the chance of oxidation to annealed parts.
Annealing of steels Improved reaction time and greater control of emergency product need fulfillment.
This Question Belongs to Mechanical Engineering >> Engineering Materials
The unit cell of face centered cubic structure contain number of atoms as