Abstract
In this study, the thermal expansion and recrystallization behavior of amorphous Al and Ti are investigated using molecular dynamics simulations. Amorphous phases are obtained via rapid quenching from a liquid state and are subsequently heated at a rate of 1 K/ps. Using the change in simulation size over the course of heating, the thermal expansion coefficients of amorphous Al and Ti are calculated and compared to their crystalline counterparts. From a similar set of simulations, the recrystallization temperatures of Al and Ti are determined by analyzing their potential energy profiles. In addition, the change in volume as a result of the phase transition is quantified by comparing the atomic volumes of Al and Ti in both their amorphous and crystalline states.
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