“How can we apply heat treatment to strengthen a material?”
When doing practical engineering, we may have to strengthen the material of steel using artificial means. One method is to apply a heat treatment to change the inner structure of a material. But what is one such example of a heat treatment? Well, let’s think about it. We know that if we were to heat steel up to below the critical point, it will become a homogeneous solution of austenite (a solution of iron and carbon). If we were to then rapidly quench this steel, the internal structure would turn into a body-centered tetragonal framework. Finally, let’s “temperthis material at high temperatures such the steel becomes an ultrastrong phase known as pearlite. This process is known as tempering and is used to strengthen steel materials.

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