About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Multi-Principal Element Alloys III: Mechanical Behavior
|
Presentation Title |
D-23: Thermo-mechanical Behavior of HEA Alloys Containing Interdendritic MC Carbides |
Author(s) |
Patrice Berthod, Lionel Aranda, Anne Vernière |
On-Site Speaker (Planned) |
Patrice Berthod |
Abstract Scope |
Casting allows obtaining in situ composites associating a HEA matrix and refractory carbides. The presence of MC carbides allows benefiting simultaneously from the intrinsic good creep resistance of the HEA matrix, and from the delayed {steady state to tertiary} transition of the creep deformation given by the good cohesion between neighbor dendrites. However, the difference in thermal expansion behavior between matrix and carbides may induce curious geometrical behavior of the whole alloy at high temperature, as earlier found for cobalt-based alloys, for instance. This work aims to investigate the dimensional behavior of MC-strengthened HEA alloys at high temperature during heating, isothermal stage and cooling, in order to observe the consequences of the internal interaction between matrix and carbides, such as visco-plastic deformations. |
Proceedings Inclusion? |
Planned: |
Keywords |
High-Entropy Alloys, Mechanical Properties, Other |