| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Microstructural and Mechanical Long-term Stability of AM Materials
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| Presentation Title |
Printability and mechanical response of high-strength electrically conductive Al-Ni-Zr(-Sn) alloys fabricated via laser powder bed fusion |
| Author(s) |
Nicholas Allen Richter, Sumit Bahl, Jovid Rakhmonov, Jonathan Poplawsky, Lawrence Allard, Alex Plotkowski, James Allen Haynes, Amit Shyam |
| On-Site Speaker (Planned) |
Nicholas Allen Richter |
| Abstract Scope |
The expanded usage of battery electric vehicles (BEVs) sees larger quantities of heavy and expensive copper (Cu) electrical conductors utilized in the powertrain components. Weight reduction, cost savings and improved efficiency can be achieved via the replacement of Cu with suitable aluminum (Al) alloy counterparts. Consequently, novel Al alloys that provide concomitant good strengths and electrical conductivities need to be developed for this application. This work explores Al-Ni-Zr(-Sn) alloys produced using laser powder bed fusion (LPBF) with promising combinations of strength and electrical conductivity. The precipitation of coherent Al3Zr-L12 between Al3Ni fibers upon aging provides simultaneous benefit to strength and conductivity. A combination of electron microscopy and atom probe tomography allows for the detailed characterization of the microstructural evolution in the as-fabricated and aged conditions. Additionally, tensile tests and creep tests provide a link between the mechanical properties and the microstructural development. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Aluminum, Mechanical Properties |