Abstract
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.
| Original language | English |
|---|---|
| Article number | 182055 |
| Journal | Journal of Alloys and Compounds |
| Volume | 1037 |
| DOIs | |
| State | Published - Aug 10 2025 |
Funding
Notice: This manuscript has been authored by UT-Battelle, LLC under Contract no. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).The authors express their gratitude to the member companies of the Advanced Casting Research Center (ACRC) for their continued guidance and support. We thank our Focus Group co-chairs, Dr. Jason Sebastian and Dr. John Jiang for their counsel and guidance. Dr. Jovid Rakhmonov and Dr. Hsin Wang acknowledge funding by the Powertrain Materials Core Program, under the Propulsion Materials Program (managed by Jerry Gibbs), Vehicle Technologies Office, US Department of Energy (DOE). The authors express their gratitude to the member companies of the Advanced Casting Research Center ( ACRC ) for their continued guidance and support. We thank our Focus Group co-chairs, Dr. Jason Sebastian and Dr. John Jiang for their counsel and guidance. Dr. Jovid Rakhmonov and Dr. Hsin Wang acknowledge funding by the Powertrain Materials Core Program, under the Propulsion Materials Program (managed by Jerry Gibbs), Vehicle Technologies Office, US Department of Energy (DOE).
Keywords
- Al-based eutectic systems
- Aluminum alloys
- Castings
- Electrical conductivity
- Thermal conductivity