Molecular dynamics simulation of local structure of aluminium and copper in supercooled liquid and solid state by using EAM

Based on the embedded-atom method, molecular dynamics simulations have been performed to study the structural features of Al and Cu in the liquid and solid stares during rapid solidification. The calculated pair correlation functions above the melting points of Al and Cu are found to be in good agreement with experiment, especially for Cu. The results show that the EAM Can correctly and efficiently predict the glass transition and crystallization during rapid solidification from liquid metals, and can also describe microstructures of liquids, supercooled liquids, glasses and crystalline phases. In addition, structural analysis using bond orientational order and pair analysis techniques have been made in detail, and the effect of cooling rate on microstructures during rapid solidification has been analysed.