| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Magnesium Technology 2025
|
| Presentation Title |
Simulation of solidification and homogenisation of Mg-Ca-Zn alloys with CALPHAD base model |
| Author(s) |
Yanheng Xie, Magnus Anderson, Claire Utton, Dikai Guan, Matthew Murphy, Hector Basoalto |
| On-Site Speaker (Planned) |
Yanheng Xie |
| Abstract Scope |
Diluted Mg-1Zn-0.2Ca (ZX10) magnesium alloy, with its degradability, biocompatibility, and excellent mechanical properties, is an alternative to traditional implant materials. Heat treatment of the alloy is a common method to improve its mechanical and corrosion properties by controlling the nucleation, growth, and distribution of its secondary precipitates. The CALPHAD method can be used to simulate the thermodynamic and kinetic properties of the alloy and predict the formation, distribution, and diffusion of secondary precipitates, thereby optimising the heat treatment process parameters. This study uses scheil solidification and mean-field precipitation models to simulate the formation of the secondary precipitates during solidification in as-cast ZX10 magnesium alloy. Additionally, the mean-field diffusion model is used to simulate the diffusion and dissolution of secondary precipitates during the heat treatment process and then combined with EDX, EBSD, and EPMA to characterise the secondary phase particles and microstructures before and after heat treatment. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnesium, Modeling and Simulation, Phase Transformations |