Comment on “High Mixing Entropy Enhanced Energy States in Metallic Glasses”

Abstract

A recent paper by Juntao Huo et al [1] reported a correlation between the entropy of mixing, ∆Smix (and the corresponding energy state) and the thermal stability and mechanical parameters, for three Zr-Ti-Cu-Ni-Be metallic glasses (MG) including a high-entropy one (HEMG).Namely a monotonic increase in the thermal stability and strength with ∆Smix was observed.Although the enhancement of thermal stability of HEMGs by ∆Smix has already been proposed [2,3] (see [4] for an alternative explanation) and the correlation between the thermal stability and mechanical parameters of MGs has been well established [4][5][6][7] , the correlation reported in [1] is potentially important and deserves further experimental verification.