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Which is false statement about annealing. Annealing is done to

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Which is false statement about annealing. Annealing is done to
1. Relieve stresses
2. Harden steel slightly
3. Permit further cold working
4. Soften material
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Correct Answer - Option 2 : Harden steel slightly

Concept:

  • Annealing is a heat treatment process in which the material is taken to a high temp, kept there for some time, and then cooled in the furnace itself.
  • Cooling is done slowly to avoid the distortion.
  • Benefits of annealing are:
    • Relieve stresses
    • Increase softness, ductility, and toughness
    • Produce a specific microstructure
    • Improve machining characteristic
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