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Hierarchical microstructural parameters governing electrical and thermal conductivity in Al-based Eutectic Systems

by Kentaro Lunn, Carl Söderhjelm, Diran Apelian, Jovid Rakhmonov, Hsin Wang
Publication Type
Journal
Journal Name
Journal of Alloys and Compounds
Publication Date
Page Number
182055
Volume
NA

Enhancing conductivity properties of aluminum alloys can drive superior performance and efficiency across diverse engineering applications, yet currently commercially available Al casting alloys are severely limited in electrical and thermal conductivity. There is a general understanding that the presence of any defects and alloying elements within Al will inevitably lower conductivity properties. However, there is a lack of comparative studies evaluating the intricate interplay between the microstructural parameters and conductivity properties across cast Al-based eutectic systems. Therefore, this study bridges this gap by conducting a comparative study across hypoeutectic alloy compositions consisting of 50% primary Al and 50% eutectic region to elucidate the key parameters that dictate conductivity properties. This research contributes to advancing the understanding of alloy design opportunities for high conductivity, high strength castable Al alloys.