About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Computational Thermodynamics and Kinetics
|
Presentation Title |
Design of a New Al-Mg-Si Based Alloy for Higher Strength Using CALPHAD Simulations |
Author(s) |
Sagar Kumar Deb, Amit Arora |
On-Site Speaker (Planned) |
Sagar Kumar Deb |
Abstract Scope |
Aluminum alloys with magnesium and silicon as principal alloying elements (Al-Mg-Si) are popular for their mechanical properties, corrosion resistance, and heat treatability. The mechanical properties can be enhanced further by addition of micro alloying elements, such as copper, zinc, scandium, etc. However, a Computational Materials Science based analysis of precipitation hardening of such alloys is required to identify new micro-alloying elements to increase their strength even further. In this study, the combined effect of chromium, zirconium and titanium on the precipitation landscape and mechanical behavior of Al-Mg-Si alloy is explored. CALPHAD based thermodynamic and kinetic simulations are performed to optimize the alloy composition and precipitation kinetics in different heat treatment conditions. The optimized alloy compositions are cast and heat treated based on the simulation findings. Mechanical and microstructural characterization of the heat-treated specimens is performed to validate various precipitates and identify optimum heat treatment parameters. |
Proceedings Inclusion? |
Planned: |
Keywords |
Aluminum, Computational Materials Science & Engineering, Mechanical Properties |