Question

The process of forming new grains in the material is known as re-crystallization.

(a) True

(b) False

The question was posed to me by my school teacher while I was bunking the class.

This is a very interesting question from Plastic Deformation and Yield Criteria in section Types of Die & Metal Forming Processes of Casting-Forming-Welding II

Answer 1

The correct option is (a) True

To explain: The process of forming new grains in the material is known as re-crystallization. And the temperature at which the re-crystallization occurs is known as re-crystallization temperature. The plastic or permanent deformation at elevated temperature occurs at less stresses as the growing of new grains are much easier at high temperature.