About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Multi-Principal Element Alloys IV: Mechanical Behavior
|
Presentation Title |
Fracture Toughness and Deformation Mechanisms in Cantor-Based Medium Entropy Alloys |
Author(s) |
Sheron S Tavares, David Cook, Punit Kumar, Robert O Ritchie, Bingfeng Wang, Marc A. Meyers |
On-Site Speaker (Planned) |
Sheron S Tavares |
Abstract Scope |
Five Cantor-based equiatomic quaternary alloys, undergoing identical homogenization (1150 C/ 24 hours) and thermomechanical treatments (30 pct upsetting in compression followed by 900 C/I hour) generated widely different microstructures with significant changes in the resultant compressive, tensile, strengths and fracture toughness. These results demonstrate that the composition plays a pivotal role in the properties of the alloys. The fracture toughness ranged from 25 MPam1/2 for the CrMnFeCo alloy to 340 MPam1/2 for the MnFeCoNi alloy. The progression of the cracks and principal toughening and embrittling mechanisms are analyzed for the five equiatomic Cantor-based alloys. |
Proceedings Inclusion? |
Planned: |
Keywords |
Mechanical Properties, High-Entropy Alloys, Characterization |