Abstract
In present work Molecular dynamic (MD) simulations have been employed to simulate the Ni80P20 metallic glass at different cooling rates and with Sub-Tg annealing during the cooling process, first time to study the effects of cooling rate and Sub-Tg annealing on Ni80P20 metallic glass. Sub-Tg annealing method during the cooling process and cooling rate influences on structural relaxation, coordination, dynamical behavior, icosahedra environment and average cluster energy of Ni80P20 metallic glass. Structural relaxation was studied through the average potential energy of the system which decreased on slow cooling rates and with Sub-Tg annealing. Dynamical behavior of Ni80P20 metallic glass was investigated through diffusivity. The solute centered icosahedra clusters <0, 0, 12, 0>, and <0, 2, 8, 2> enhanced by low cooling rate and with Sub-Tg annealing.
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