Quenching cracks during heat treatment can be minimised:

Metallurgy Mcqs
BILAL KHATTAK0

A.by avoiding sharp projections and sudden transitions from thick to thin sections
B.articles should be free from stress before heat treatment
C.heat to minimum stable temperature for hardening
D.Any of the above

Related Mcqs:

  1. During heat treatment quenching cracks occur due to
  2. During heat treatment, deformation and volume changes can be minimised by
  3. If an article develops insufficient hardening after quenching it could be due to any of the following EXCEPT:
  4. Carbondioxide moulding is useful for
  5. Which heat treatment is applicable to aluminium alloy castings?
  6. In heat exchanger design, one transfer unit means
  7. Specific heat is
  8. The residual stresses in casting occur due to
  9. The effect of austenitic grain size development during heat treatment is
  10. Heat treatment of castings is usually done for

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