On the elastic microstructure of bulk metallic glasses

On-Chip Very Low Strain Rate Rheology of Amorphous Olivine Films

“…Spatial heterogeneity is inherent to amorphous materials. In metallic glasses, the link between spatial heterogeneity and mechanical properties, whether elastic [22] or plastic, has already been highlighted several times [23][24][25][26][27]. These studies generally agree in distinguishing the coexistence of more deformable zones (sometimes referred to as liquid-like) and less deformable zones (referred to in parallel as solid-like).…”

“…In these studies, the spatial scales of heterogeneities reported are often dependent on the techniques used (e.g. dynamic force microscopy [23]; static force spectroscopy [24]; nanoindentation [25][26][27], which makes comparisons between studies difficult. Here, nano-DIC reveals local strain heterogeneity taking place in a-olivine at a spatial resolution rarely reached in SEM-DIC studiesi.e.…”