Spheroidising of a material is a/an ________________ process?
Correct answer: B. Annealing
- A. Normalising
- B. Annealing
- C. Tempering
- D. Hardening
Explanation
Spheroidising is a special annealing treatment that changes lamellar cementite into rounded particles, improving machinability and reducing hardness. It is not normalising, tempering, or hardening.
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