details of heat treatment processes

1. By
(Dr. M K Manik)
HOD.mechccetb@gmail.com
Heat treatment

3. we must know the stages that a ferrous metal
undergo while heating/Cooling

4. Heat treatment
Heat treatment involves the use of heating or
chilling, normally to extreme temperatures,
To achieve a desired result such as hardening or
softening of a material.
Heat treatment processes are as follows:
 Annealing,
Normalizing
Case hardening,
 Precipitation strengthening,
 Tempering,
Austempering
Mar tempering.

8. Process of hardening of steel is shown
Heating the metal , Shocking up to a predetermine
time and quenching in a media as per defined
process as shown

9. Deferent zone of heating in heat treatment process

12. Salt bath used in cyanide method

21. Heat treatment in non ferrous metals

23. Thank you