About this Abstract |
Meeting |
MS&T24: Materials Science & Technology
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Symposium
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Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
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Presentation Title |
Microstructure, Electrical Conductivity, and Mechanical Properties of an Additively Manufactured Al-Zr-Ce-Cu-Sn Alloy |
Author(s) |
Jovid Rakhmonov, Sumit Bahl, Jonathan Poplawsky, Lawrence Allard, Alice Perrin, Alex Plotkowski, Amit Shyam |
On-Site Speaker (Planned) |
Jovid Rakhmonov |
Abstract Scope |
Aluminum alloys are widely used in the automotive industry due to their high specific strength. Emerging hybrid and electrical vehicles (HEVs) in the automotive sector require applications possessing a high combination of electrical conductivity (EC) and mechanical properties. Pure aluminum has high EC but limited strength, whereas high-strength ones, e.g., Al-Si-based alloys, exhibit poor EC. The high solidification cooling rates intrinsic to additive manufacturing processes enable us to design new alloy compositions with potentially improved mechanical strength and EC. This talk discusses the processability, microstructure, electrical conductivity, and mechanical properties at 20 and 200 °C of a new Al-Zr-Ce-Cu-Sn alloy fabricated via a laser powder-bed fusion (LPBF) process. Advanced microscopy techniques (SEM/EBSD, STEM, and APT) were utilized to characterize the as-fabricated and heat-treated microstructures, which were then related to the obtained promising combination of electrical conductivity and mechanical properties. |