Differentiate between heat treatment processb and cold working process?

Expert Solution

1.- Above the recrystallisation temperature, the metal becomes plastic and causes the growth of grains. By heat treatment, the grains are broken up and their parts are deformed into small and more numerous crystals or in other words the refinement of grain occurs. Metals possess little elasticity and low load is required to shape the metal as the strength and hardness decrease at elevated temperatures.

2.- The porosity of the steel ingot can be eliminated to a greater extent.

3.- Great latitude in shape and size of form is possible due to reduction of elastic limit.

4.- A uniformity is established either by squeezing other impurities into fiber slags or distributing them throughout the mass.

5.- Directional property resulting from a fiber structure is obtained.

6.- Due to refinement of grains, mechanical properties such as toughness, ductility, elongation and reduction in area are improved.

7.- The power required to finish the part ingot is less.

8.- It can be used on most of the metals, because it is a rapid and economical process.

queen_honey_blossom answered 2 years ago

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