Annealing Process Continuation and Various Other Heat Treatment Methods

Lesson 6 of 10 • 2 upvotes • 10:57mins

Akhildev V P

Discussed about types of annealing due to purpose. a) Diffusion annealing b) Process annealing and c) Recrystallization annealing. Then the lesson which includes the various other heat treatment methods like Normalising, Hardening, Tempering, Austempering, Martempering and various case hardening methods. In the Normalising heat treatment process, the material is heated to a temperature above upper critical temperature and held at that temperature for a while and allow it to cool slowly. Hardening is one simple method by heating the material to a hardening temperature of the material and it will results in the formation of martensitic structure. Tempering is done after to this hardening and in Austempering process the austenite material is converted to bainitic structure. And Martempering includes converting austenite into martensitic structure.