The pictured automotive piston was additively manufactured using the ORNL-developed DuAlumin-3D alloy. (Image courtesy Amy Smotherman Burgess/ORNL, U.S. Dept. of Energy)
From automotive to aerospace: Versatile alloy offers superior strength, fuel efficiency.
By Tina Johnson
OAK RIDGE, Tenn.—Scientists at Oak Ridge National Laboratory have advanced the use of DuAlumin-3D, an innovative aluminum alloy, in high-temperature automotive components, significantly expanding the possibilities of additive manufacturing.
The research team found that DuAlumin-3D outperforms traditional alloys, which are prone to cracking during laser powder bed fusion processing, while maintaining comparable heat characteristics. This advancement offers lightweighting solutions and reduces fuel costs.
“DuAlumin-3D performed exceptionally well in our evaluations,” said lead ORNL researcher Alex Plotkowski. “While our research focused on its use in high-efficiency engines, it could also be used for lightweighting applications in aerospace and to optimize heat exchangers.”
The ORNL-developed alloy exhibits superior strength and resistance to deformation at elevated temperatures, outperforming all known aluminum alloys.
Tina Johnson is a writer with Oak Ridge National Laboratory.
Source:
https://www.ornl.gov/news/new-dualumin-3d-alloy-enhances-high-performance-automotive-parts