During heat treatment the formation of thick layer of scale on the surface of steel articles is mainly due to

Related MCQs

• Formation of thick layer of scale on the surface of steel articles can be minimised by
• Warping of articles during heat treatment may be due to
• During heat treatment quenching cracks occur due to
• The minimum carbon percentage required in steel so that it may respond to hardening by heat treatment is
• During heat treatment, deformation and volume changes can be minimised by
• The effect of austenitic grain size development during heat treatment is
• Quenching cracks during heat treatment can be minimised
• In high frequency heating of steel, the heat is generated primarily due to
• During dielectric heating, the heat is generated primarily due to
• Chilling, heat treatment and alloy addition to cast iron generally