Tell about the difference between Normalizing and Quenching

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Accepted Answer

Normalizing and quenching are heat treatment processes used to alter the properties of metals.

Normalizing involves heating the metal to a temperature above its critical point and then cooling it in still air. This process improves the uniformity of the metal's grain structure and reduces internal stresses.
Quenching involves heating the metal to a high temperature and then rapidly cooling it in a liquid, usually water or oil. This process hardens the metal by forming martensite, a hard and brittle phase.
Normalizing is used to improve the machinability and ductility of the metal, while quenching is used to increase its hardness and strength.
The choice between normalizing and quenching depends on the desired properties of the metal and the specific application it will be used for.

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