| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Metal Powder Synthesis and Processing: Fundamental Aspects and Modeling
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| Presentation Title |
FEM Analysis of Temperature and Stress Distribution Behavior of Al20Cr20Fe25Ni25Mn10 High Entropy Alloy in Spark Plasma Sintering: Effect of Consolidation Time on Microstructure |
| Author(s) |
Lehlogonolo Rudolf Kanyane, M Tlotleng, N Malatji |
| On-Site Speaker (Planned) |
Lehlogonolo Rudolf Kanyane |
| Abstract Scope |
A fully thermal-electrical-mechanical coupled and dynamic finite element model (FEM) is applied to analyze the temperature and stress distribution in spark plasma sintering (SPS) process of Al20Cr20Fe25Ni25Mn10 high entropy alloy (HEA) via COMSOL Multiphysics 5.3a. The FEM focused on the effect of holding times while keeping temperature, pressure and sintering rate constant. The microstructural evolution and densification validation experiments are implemented to validate the simulation results. The detailed microstructure analysis showed that the computational temperature and stress distribution attained in the present FEM are related. The results showed that high-stress gradients produced cracks or initiation of stress in the microstructure. However, further improvement on the developed model is still needed for a more precise prediction of microstructural evolution in different SPS conditions.
Keywords: High entropy alloys, Finite Element Analysis (FEA), Microstructure, Densification |