| Abstract Scope |
The intrinsic properties of metallic glasses are strongly affected by the details of short- and medium-range order cluster motifs, and their response to external fields like mechanical deformation or temperature cycling largely depends on local atomic rearrangements triggered by or causing heterogeneous stress and strain variation on different length-scales.
This talk explores the structural diversity that can be achieved in metallic glasses considering structure changes, recovery and rejuvenation mechanisms, as well as phase separation or nanocrystallization phenomena when the materials are subjected to different casting conditions, mechanical deformation, thermo-mechanical cycling or net-shaping. The findings from experiments and simulations will be discussed with respect to short- and medium-range order modulation, local stress and strain states, defect generation and annihilation, and precipitation of secondary phases. The structure changes will be correlated with plastic deformability and failure mechanisms, and the effectiveness of composition tuning and thermo-mechanical processing for plasticity improvement and possible strain hardening will be discussed. |