Magnesium metal and its alloys are widely used in industry, especially, as biodegradable materials are highly suitable for biomedical applications. Since macroscopic properties and service behaviors of materials are mainly determined by their microstructures, it is very important to in depth understand the melting structure of pure magnesium and its evolution process in solidification process. In this work, a molecular dynamic simulation studyis performed with embedded atom method potential at different coo...