Module 4: Solidification and casting and finishing operations
  Lecture 35: Final Finishing Operations
 

 

In flame hardening, a high intense flame is used to heat the metal at austenitic temperature and then followed by quenching.
                                                                                                                                                                   
Steel types and hardening methods

Law carbon steels

Alloy steel

Tool steels

Stainless steels

Carburizing
Cyaniding
Ferrite
Nitro- carburizing
Carbonitriding   

Nitriding or
ion nitriding  

Titanium carbide gas nitriding
ion nitriding
Salt nitriding 

Gas nitriding titanium carbide, ion nitriding

References:

W.D. Calliste r: Material Science and Engineering
For more details, see the references given at the end of 37 lecture.