A linear relationship between free volume and annealing temperature in ZrCu metallic glass

DP Wang and YF Wang and B Liao and L Yang, MATERIALS RESEARCH EXPRESS, 6, 085213 (2019).

DOI: 10.1088/2053-1591/ab27ab

In this work, the annealing effect on the microstructure of metallic glasses (MGs) was investigated, by using molecular dynamics simulation in a ZrCu model. An approach for calculating free volume was adopted, by which the free volume dependence on the annealing temperature was evaluated. It was found that there was a perfect linear relationship between free volume and the annealing temperature, and that the slope was influenced by the annealing time. This work provides a feasible strategy for estimating free volume in an annealed MG, and an in-depth understanding of the change in free volume induced by annealing.

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