“…In past decades, bulk metallic glasses (BMGs) have attracted widespread interest due to their outstanding mechanical properties [ 1 , 2 , 3 , 4 , 5 , 6 ], e.g., large elastic limit, high strength, high hardness, excellent fracture toughness, good corrosion resistance, good wear resistance, etc. However, due to the characteristics of long-range disorders and short-range orders in homogeneous macrostructures of BMGs, a highly localized plastic deformation via shear bands usually governs mechanical properties, resulting in catastrophic room-temperature brittleness [ 1 , 2 , 3 , 4 , 5 , 6 ], severely limiting future practical applications as engineering materials. In order to overcome catastrophic fracture and improve the plastic deformability of BMGs, various approaches have been suggested [ 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ], which are classified into three basic strategies: The first is to create structural heterogeneity by tailoring chemical compositions, cooling rates, cryogenic thermal cycling, elastic loading, and so on [ 7 , 8 ].…”