About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Multi-Principal Element Alloys V: Mechanical Behavior
|
| Presentation Title |
Investigating the role of temperature on the mechanical properties of Nanocrystalline Al0.3CoCrFeNi High Entropy Alloy Using Molecular Dynamics Simulations |
| Author(s) |
SUBHOMOY GUPTA, Roshan Kumar Jha, Sumantra Mandal |
| On-Site Speaker (Planned) |
SUBHOMOY GUPTA |
| Abstract Scope |
Atomistic simulations have been performed to understand the effect of temperature on the mechanical properties of High Entropy Alloy (Al0.3CoCrFeNi). In this regard, tensile tests have been performed using Molecular Dynamics (MD) simulations on the NC samples at 300 K, 600 K, and 900 K. The simulated results indicate that yield strength decreases as temperature increases and plastic deformation accelerates at higher temperatures. Further, it has been observed that an extensive stacking fault formation occurs due to an increase in Shockley-partials density immediately after the yield point across all temperatures. Dislocation density analysis indicates that the density of Shockley-partials is significantly less at higher temperatures (such as 900 K) than at lower temperatures (such as 300 K and 600 K), indicating dislocations tend to cross-slip or climb at higher temperatures and thus have less tendency to form stacking faults. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, Computational Materials Science & Engineering, Mechanical Properties |