| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Late News Poster Session
|
| Presentation Title |
J-101: Mechanical Behaviour of Forged Al5Co15Cr30Fe25Ni25 High Entropy Alloy |
| Author(s) |
Pablo Perez, Gerardo Garcés, María Fernanda Vega, Judit Medina, Paloma Adeva |
| On-Site Speaker (Planned) |
Pablo Perez |
| Abstract Scope |
Compressive behavior of forged Al5Co15Cr30Fe25Ni25 high entropy alloy was evaluated up to 700˚C. The material was processed by forging as-cast ingots at 1200˚C with a total reduction of 50 %. Compressive tests were performed on samples mechanized in the forging direction and perpendicularly to it. The results evidence the significant effect of sample orientation on the yield stress. The yield stress along the forging direction is higher than along the transverse direction. Such difference, of about 100 MPa at room temperature, tends to decrease as temperature increases. Disregarding the sample orientation, the yield stress is kept almost constant up to 500˚C, decreasing above this temperature due to the occurrence of dynamic recrystallization in the course of the compression test. Curves at 400 and 500˚C exhibit a jerky flow, associated with the pinning of dislocations by solute atoms, which probably accounts for the high strength of the HEA at these temperatures. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
High-Entropy Alloys, Mechanical Properties, Shaping and Forming |