If an article develops insufficient hardening after quenching it could be due to any of the following EXCEPT:

Metallurgy Mcqs
BILAL KHATTAK0

A.Internal stresses in the article before heating
B.Hardening temperature too low
C.Cooling rate too slow
D.Holding insufficient at the hardening temperature

Related Mcqs:

  1. If an article develops insufficient hardening after quenching, the defect can be corrected by
  2. Warping of articles during heat treatment may be due to
  3. Local hardening of steel can be done by all of the following EXCEPT:
  4. If a sample of steel shows unsymmetrical deformation of a piece in quenching, the probable cause could be
  5. During hardening soft spots can be avoided by
  6. If a sample of steel shown excessive hardness after tempering the probable cause could be
  7. Induction hardening is the process of
  8. During heat treatment quenching cracks occur due to
  9. Quenching cracks during heat treatment can be minimised:
  10. Which hardening process is generally not used for steels?

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