About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Bulk Metallic Glasses XX
|
Presentation Title |
Correlating Rejuvenation within the Elastic Limit with Anelasticity in Metallic Glasses |
Author(s) |
Miguel B. Costa, Alan Lindsay Greer |
On-Site Speaker (Planned) |
Miguel B. Costa |
Abstract Scope |
Structural rejuvenation has received much attention in the field of metallic glasses, mainly due to its potential for improvements of the fracture toughness and plasticity associated with higher-energy states. Processes within the elastic limit offer several advantages over severe plastic deformation processes, especially from a practical-application perspective. However, recent experimental evidence shows that the stored energy increases associated with these processes decay relatively fast, limiting their usefulness and hindering the efforts to understand the structural mechanisms which lead to rejuvenation. In this work, we investigate the correlation between the rejuvenation observed in processes such as elastostatic loading and cryogenic thermal cycling and anelastic (or anelastic-like) behaviours in MGs. Our results provide clues to understanding the underlying mechanisms of rejuvenation associated with elastic strains, and insights into the intricate relaxation spectra of metallic glasses with different thermal history. |
Proceedings Inclusion? |
Planned: |
Keywords |
Mechanical Properties, Characterization, Other |