Chapter 5, Problem 5.18P

Interpretation Introduction

Interpretation:

The diffusion coefficients for hydrogen and nitrogen in FCC iron at temperature of ${1000}^{0}C$ is to be compared and also the reason for difference in their values must be explained.

Concept introduction:

The diffusion coefficient of hydrogen and nitrogen in FCC iron can be determined by using the equation:

  $D=D_0\exp \left(-\frac{Q}{RT}\right)$

  $D_0$ is pre-exponential term

  $D_H$ is diffusion coefficient

  $Q$ is activation energy

  $R$ is gas constant

  $T$ is absolute temperature