Which of the following processes follows the hardening process for reducing the hardening strains & increasing the toughness of the steel part ?
Correct answer: B. Tempering
- A. Anodising
- B. Tempering
- C. Carburising
- D. Annealing
Explanation
Tempering follows hardening and reheats the steel to a controlled lower temperature, relieving internal stresses and improving toughness. Annealing softens and relieves stress but is not specifically the usual follow-up to hardening.
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