Chapter 4, Problem 4.79CP

Interpretation Introduction

Interpretation:

Yield stress and grain size using Hall Petch equation in computer programming should be determined.

Concept introduction:

Hall petch equation is defined using the relationship between yield stress and grain size. The relationship of hall petch equation is given below:

  ${\sigma }_y={\sigma }_0+\frac{k}{\sqrt{D}}$

Where,

  ${\sigma }_y$ is the yield strength, it is the amount of stress required to cause the permanent deformation of the material

  ${\sigma }_0$ is the constant value.

K is constant.

D is grain diameter.