Simulation of Carbon Diffusion in Steel Driven by a Temperature Gradient

The basis of thermomigration in multicomponent alloys is summarized, and the general equations are given and implemented in the DICTRA software. Experimental information from Okafor et al. is analyzed with the new simulations and it is concluded that steady-state conditions was not established during their experiment. A heat of transport \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ Q_{C}^{ * } = - 44000\;{\text{J/mol}} $$\end{document}, almost four times larger than the value given by Okafor et al., was found to give a satisfactory representation of the experimental information.