Multifarious fracture features of CuZrAlGd(Ag) bulk metallic glasses

[Abstract]: Multifarious fracture features were systematically investigated in the monolithic Cu-based bulk metallic glasses, such as coarse rive-like, micro holes, rugged and flat fracture surface. The fracture planes represent different angles with the loading direction. These fracture features are completely different from the typical fracture characteristics of amorphous alloys, i.e. vein-pattern and fracture approximately along the maximum shear stress plane. Some tiny strips with about 50 nm intervals were also detected on the flat fracture plane. The preliminary discussion on the formation mechanisms of these exceptional features were presente