1.

What Is Heat Treatment And Why Is It Done?

Answer»

HEAT treatment can be DEFINED as a combination of processes or operations in which the heating and cooling of a metal or alloy is done in order to obtain desirable CHARACTERISTICS without changing the compositions. Some of the motives or purpose of heat treatment are as follows:

  • In order to improve the hardness of metals.
  • For the softening of the metal.
  • In order to improve the machinability of the metal.
  • To change the grain size.
  • To provide better RESISTANCE to heat, corrosion, WEAR etc.

Heat treatment is generally performed in the following ways:

  • Normalizing
  • Annealing
  • Spheroidising
  • Hardening
  • Tempering
  • Surface or case hardening

Heat treatment can be defined as a combination of processes or operations in which the heating and cooling of a metal or alloy is done in order to obtain desirable characteristics without changing the compositions. Some of the motives or purpose of heat treatment are as follows:

Heat treatment is generally performed in the following ways:


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