Diffusion of aluminum in ion-implanted alpha iron

Abstract
The bulk diffusion coefficient of aluminum in ion‐implanted paramagnetic iron‐aluminum alloys has been determined to have an activation energy of 3.17±0.15 eV and preexponential factor of 1.6±4.60.2 cm2/s by measuring the time evolution of aluminum profiles in the temperature range 775–900 °C.