A.non-uniform heating
B.non-uniform cooling
C.internal stresses in the article before heating
Related Mcqs:
- If an article develops insufficient hardening after quenching it could be due to any of the following EXCEPT:
- During heat treatment quenching cracks occur due to
- During heat treatment the formation of thick layer of scale on the surface of steel articles is mainly due to
- Formation of thick layer of scale on the surface of steel articles can be minimised by
- If a sample of steel shows unsymmetrical deformation of a piece in quenching, the probable cause could be
- During heat treatment, deformation and volume changes can be minimised by
- Transient heat flow occurs in
- The effect of austenitic grain size development during heat treatment is
- Heat treatment of castings is usually done for
- Most of the energy expended in deforming a metal by cold working is
