About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
High-Entropy Materials: Solid Solutions, Intermetallics, Ceramics, Functional Materials and Beyond VI
|
| Presentation Title |
Precipitation Hardening Feasibility Within the D022 Phase Range of AlCrMoTiV High Entropy Alloys. |
| Author(s) |
Basil Ochieze |
| On-Site Speaker (Planned) |
Basil Ochieze |
| Abstract Scope |
Developing high-entropy alloys (HEAs) with exceptional mechanical properties remains challenging, particularly in achieving a balance between strength and ductility. This study investigates the feasibility of precipitation hardening in AlCrMoTiV HEAs by leveraging the Valence Electron Concentration (VEC) concept to design a coherent D022 superlattice as a reinforcing phase. CALPHAD calculations predict a significant volume fraction of the D022 phase, enabling precise microstructural control during age hardening. Advanced analytical microscopy will examine the phase’s structural, thermal stability, and mechanical properties. The D022 phase is anticipated to substantially enhance yield strength while maintaining ductility through ordering and coherency strengthening mechanisms. This work highlights the potential of the D022 phase to serve as an efficient reinforcing phase, providing a pathway to develop age-hardenable HEAs with improved performance. These findings contribute to the advancement of HEAs as a versatile material class for engineering applications, addressing critical challenges in materials science. |