| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Materials in Energy Environments
|
| Presentation Title |
F-9: Mechanical Property and Microstructure of Laser Powder Bed Fused Hypereutectic Al-Ce-Mg Alloy |
| Author(s) |
Haijian Yang, Thinh Huynh, Kevin Graydon, Yongho Sohn, David Weiss, Le Zhou |
| On-Site Speaker (Planned) |
Haijian Yang |
| Abstract Scope |
Al-Ce based alloys have shown promise as next-generation lightweight high temperature aluminum alloys. The objective of this study is to explore the printability, microstructure, mechanical and creep property and of a hypereutectic Al-16Ce-1Mg alloy manufactured by laser powder bed fusion. Optimization of the processing parameters indicated that the Al-Ce-Mg alloys have outstanding printability without any solidification cracks. The porosity, grain structure, hypereutectic microstructure were characterized by optical and scanning electron microscope. Room temperature tensile strength of the as-built and heat-treated alloys exceeds that of the LPBF AlSi10Mg. Compressive creep property was measured at temperatures between 250-400°C. The steady-state creep strain rates and microstructural evolution were determined and analyzed to reveal the creep deformation mechanisms. The thermal stability and creep property were compared to other LPBF aluminum alloys. The effect of the hypereutectic microstructure and the alloying of Mg on the mechanical property, creep deformation and thermal stability will be discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Aluminum, Mechanical Properties |