Which of the following iron carbon mixture, is the product of air cooling?

Which of the following iron-carbon mixture, is the product of air cooling?

Right Answer is:

Fine pearlite

SOLUTION

Simple heat treatment is obtained by austenitizing and air cooling to produce a fine pearlite structure.

It is established that the fine pearlite undergoes plastic deformation and ductile failure as a single structure, while the coarse pearlite exhibits a structure discontinuity upon deformation.

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