| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Defects and Properties of Cast Metals
|
| Presentation Title |
M-54: Synchrotron Validated Modelling of Pore Formation During High Pressure Die Casting |
| Author(s) |
Zhixuan Gong, Shishira Bhagavath, Tim Wigger, Saurabh M Shah, Sebastian Marussi, Shashidar Marathe, Shyamprasad Karagadde, Peter D Lee |
| On-Site Speaker (Planned) |
Zhixuan Gong |
| Abstract Scope |
High pressure die-casting (HPDC) is an efficient and low-cost production technique for aluminium alloy light-weight automotive components. However, some of the microstructural features present, such as porosity, may limit the component’s strength and fatigue life. These microstructural feature form due to the complex interaction of the high velocity liquid metal flow and deformation, combined with solidification phenomena. This study presents in situ synchrotron radiography and tomography experiments that seek to replicate the manufacturing process to enable a greater understanding of the mechanisms by which microstructural features form. In this study, we present results during the filling and intensification processes with varying processing fraction solid (~0.2-0.8) and loading rate (~30-60 μm/s). The results reveal the importance of melt flow on microstructural feature formation and were used to inform and validate a computational model developed in OpenFOAM for further process optimisation. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |