Abstract
BCC structural metals often transform into HCP structural metals by the martensitic transformation under hydrostatic pressure. In this study, BCC structural metals under hydrostatic pressure are investigated by Molecular Dynamics (MD) simulation. Molecular movements in of MD simulation depend on the potential functions. In this study, five potential functions are chosen; Lennard-Jones (L-J) potential, L-J potential which the Coulomb term is added to, Long Range Oscillation 2' (LRO2') potential which has Fermi wave number depending on the density, LRO2' potential which has constant Fermi wave number, and Modified Analytic Embedded-Atom Method (MAEAM) potential. Three type structures under high-hydrostatic pressure are obtained; BCC, HCP, and HCP like structure.
