| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Late News Poster Session
|
| Presentation Title |
Nano-scale Structural Evolution and Mechanical Characteristics of Equiatomic AlCoCrNi High-entropy Alloy |
| Author(s) |
Elyorjon Jumaev, Orifjon Mikhliev, Khasanjon Shanazarov, Amir Abidov |
| On-Site Speaker (Planned) |
Elyorjon Jumaev |
| Abstract Scope |
In this work, crystal structure and mechanical behaviors of quaternary AlCoCrNi-based high-entropy alloy were investigated. The alloy was prepared by vacuum arc casting and studied and annealed at 873 K for 24, 72, and 192 h. The XRD patterns indicated the formation of body-centered cubic (BCC) crystal structure in the as-cast sample, however, hcp patterns were observed in heat-treated samples. The microstructure of the alloys showed dendrite and matrix areas. The fine microstructure of the dendrite and matrix area of the as-cast sample was found to be spherical participates and basket weave morphology, respectively. After annealing at different maintenance times, grain growth was observed in the morphology of the matrix area and phase transformation happened in the dendrite area. The alloy exhibits excellent compressive properties. However, after annealing mechanical properties of the alloy resulted in continuous strengthening in yield strength and loss of elasticity. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
High-Entropy Alloys, Phase Transformations, Mechanical Properties |