The various heat treatment processes are discussed as follows: 1. Annealing 2. Normalising 3. Hardening 4. Tempering 5. Surface Hardening. 1. Annealing: The objects of annealing are: (i) To soften the metals. (ii) To improve machinability. (iii) To refine grain size due to phase recrystallisation. (iv) To increase ductility of metal. (v) To prepare steel for subsequent treatment. (vi) To [...]
The various heat treatment processes are discussed as follows: 1. Annealing 2. Normalising 3. Hardening 4. Tempering 5. Surface Hardening. 1. Annealing: The objects of annealing are: (i) To soften the metals. (ii) To improve machinability. (iii) To refine grain size due to phase recrystallisation. (iv) To increase ductility of metal. (v) To prepare steel for subsequent treatment. (vi) To [...]
In this article we will discuss about:- 1. Introduction to Heat Treatment of Metals 2. History and Art of Heat Treatment of Metals 3. Process 4. Objectives. Introduction to Heat Treatment of Metals: Heat treatment is an endeavor to obtain the maximum efficiency of the material under the demanding conditions of service. Steel is an outstanding versatile engineering material, with [...]