Question

Q. what are the three main differences between case hardening and normalizing ?​

Answer 1

In Normalizing, material (suppose steel) is heated to Austenite temperature range , after holding for sufficient time it is cooled in air to room temperature. Transformation takes place at lower temperature than annealing , so finer pearlite is formed. In this case steel have good strength as well as ductility.

Answer 2

Answer:

The main difference between case hardening and surface hardening is that case hardening increases the hardness of the surface of the metal by infusing elements into the materials surface, forming a thin layer of harder alloy whereas surface hardening increases the hardness of the surface while the core remains .

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Explanation:

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