About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Bulk Metallic Glasses XX
|
Presentation Title |
Rejuvenation of the Supercooled Liquid State by Straining during Cooling |
Author(s) |
Ethen T. Lund, Rodrigo Miguel Ojeda Mota, Sungwoo Sohn, David Browne, Jan Schroers |
On-Site Speaker (Planned) |
Ethen T. Lund |
Abstract Scope |
Rejuvenation and relaxation of bulk metallic glass offer the prospect of tailoring bulk metallic glass structure and, in turn, properties through processing techniques. Here, we investigate methods of accomplishing this, as applied to the supercooled liquid and glass states. Using Zr44Ti11Cu10Ni10Be25 as a model alloy, we demonstrate excitation of the supercooled liquid using an applied strain rate, which can be simultaneously cooled to freeze into a higher energy glass exhibiting improved ductility upon bending. This phenomenon is described by a competition between timescales of the glass, the cooling rate, and the strain rate. Further, elastic processing of the glassy state will be explored to better understand its scalability and effect on structure. |
Proceedings Inclusion? |
Planned: |
Keywords |
Process Technology, Characterization, |