About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Heterostructured and Gradient Materials (HGM V): New Mechanistic Discoveries Enabling Superior Properties
|
Presentation Title |
Application of Harmonic Structure Design to a CrMnFeCoNi High Entropy Alloy |
Author(s) |
Kei Ameyama, Hiroshi Fujiwara |
On-Site Speaker (Planned) |
Kei Ameyama |
Abstract Scope |
The harmonic structure is a recently introduced concept paving the way for engineering metallic materials to achieve excellent mechanical performance. They consist of soft coarse-grained regions (Core) that are three-dimensionally surrounded by a connected network of hard ultra-fine grained regions (Shell). The interaction in these Core-Shell regions produces a synergistic effect, during plastic deformation, leading to superior mechanical properties that are extremely important in practical applications. In the present study, microstructure evolution and mechanical properties of the harmonic structure designed CrMnFeCoNi high entropy alloy was examined. As the results, due to its peculiar microstructural characteristics, the harmonic structure designed CrMnFeCoNi HEA demonstrated a combination of high strength, large uniform elongation, and large total elongation to failure, simultaneously, partially via the twinning deformation. |
Proceedings Inclusion? |
Planned: |
Keywords |
High-Entropy Alloys, Powder Materials, |