Crack tip cavitation in metallic glasses

Metallic glasses (MGs) are potential engineering materials, however their ductility is currently a limiting factor. Despite significant attempts to improve their fracture toughness, the fundamental physics of crack propagation remains poorly understood. The most concerning issue is the development of nano-corrugations (NCs), a distinctive fracture pattern found in brittle MGs. We offer a proof that NCs may be properly understood using the stress-driven cavitation process. The findings might provide insight on the genesis of dynamic fracture propagation in amorphous materials, which is a fiercely contested issue. The combination of shear and dilation strengths is shown to be critical in forecasting subsequent damage development. Finally, we apply what we have learned here to the debate over the macro and microscopic amorphous plasticity theories.