Characterization on the glass forming ability of metallic nano-glasses by the dynamic scaling for mechanical loss in supercooled liquid state

Metallic nano-glasses (NGs) are promising in solving the issues of metallic glasses (MGs) such as the intrinsic size limitation and low tensile ductility, while the understanding on the forming ability of glassy structures in NGs is still lacking. Herein, an exponent β is proposed to characterize the glass forming ability (GFA) of NGs, as well as MGs, which is determined by dynamic scaling for mechanical losses (Q − 1) with the frequency ω of...