During heat treatment quenching cracks occur due to

Metallurgy Mcqs
BILAL KHATTAK0

A.irregular martensitic transformation within the article
B.oxidising atmosphere within the fumace
C.heating at higher temperatures for longer durations
D.All of the above

Related Mcqs:

  1. Quenching cracks during heat treatment can be minimised:
  2. Warping of articles during heat treatment may be due to
  3. During heat treatment, deformation and volume changes can be minimised by
  4. If an article develops insufficient hardening after quenching, the defect can be corrected by
  5. If an article develops insufficient hardening after quenching it could be due to any of the following EXCEPT:
  6. If a sample of steel shows unsymmetrical deformation of a piece in quenching, the probable cause could be
  7. Formation of thick layer of scale on the surface of steel articles can be minimised by
  8. A mould cracks after drying. It indicates
  9. The effect of austenitic grain size development during heat treatment is
  10. Chilling, heat treatment and alloy addition to cast iron generally

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