About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing for Energy Applications V
|
Presentation Title |
Creep Resistance and Microstructure of Binary Al-Ce Alloy Produced by Casting and Laser Powder Bed Fusion |
Author(s) |
Jillian Stinehart, Le Zhou |
On-Site Speaker (Planned) |
Jillian Stinehart |
Abstract Scope |
Al-Ce based alloys have shown promise as next-generation lightweight high temperature aluminum alloys. The goal of this study is to explore the creep property and creep deformation mechanisms in binary Al-Ce alloys to provide a benchmark for future alloy development. Binary Al-10Ce alloys are manufactured by laser powder bed fusion (LPBF) and casting. The porosity, eutectic lamellae and grain structure are characterized by microtomography, optical and scanning electron microscope. The as-built LPBF alloy consisted of a much finer eutectic lamellar microstructure and showed improved room-temperature strength and ductility compared to the as-cast alloy. Creep resistance was measured in compression and tension at temperatures between 250-400°C. The steady-state creep strain rate, post microstructure and fracture morphology were determined and analyzed to reveal the creep deformation mechanisms. The effect of the eutectic morphology on the creep resistance for LPBF and cast alloys will be compared and discussed. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Aluminum, Mechanical Properties |