| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Multi-Principal Element Alloys II
|
| Presentation Title |
J-4: A Dynamic Recrystallization-induced Heterostructuring Strategy via Hot Rolling in a Ferrous Multi-principal Element Alloy |
| Author(s) |
Jungwan Lee, Hyojin Park, Sujung Son, Jae Wung Bae, Jinyou Kim, Sung Kyu Kim, Hyoung Seop Kim |
| On-Site Speaker (Planned) |
Jungwan Lee |
| Abstract Scope |
Microstructural heterogeneities of grain sizes, crystal structures, and/or elemental distribution are highly promising alloy design concepts for both high strength and ductility stemmed from their sufficient strain hardening capacity. There have been various strategies to induce the heterostructured microstructures, e.g., multi-phases, partial recrystallization, and inhomogeneous elemental distribution. Plenty of these studies required annealing process under certain conditions to obtain the desired microstructures. Here, we propose heterostructured ferrous multi-principal element alloys via hot rolling exhibiting superb combinations of strength and ductility. The heterogeneous microstructure is arised from dynamic recrystallization, which occurred during the hot rolling. With the heterogeneous microstructures as well as deformation-induced martensitic transformation at liquid nitrogen temperature, we rationalized the enhanced mechanical properties of the present hot rolled multi-principal element alloys in depth. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, Phase Transformations, Process Technology |