A5030506356- Additive Manufacturing Materials and Processes
- High Entropy Alloys Studies
- Additive Manufacturing and 3D Printing Technologies
- High-Temperature Coating Behaviors
- Fluid Dynamics and Heat Transfer
- Advanced ceramic materials synthesis
- Aluminum Alloy Microstructure Properties
- Advanced materials and composites
- X-ray Diffraction in Crystallography
- Intermetallics and Advanced Alloy Properties
- High Temperature Alloys and Creep
- Injection Molding Process and Properties
- Manufacturing Process and Optimization
- Electrohydrodynamics and Fluid Dynamics
Ames National Laboratory
2021-2024
Government of the United States of America
2024
Materials are needed that can tolerate increasingly harsh environments, especially ones retain high strength at extreme temperatures. Higher melting temperature alloys, like those consisting primarily of refractory elements, greatly increase the efficiency turbomachinery used in grid electricity production worldwide. Existing including Ni- and Co-based superalloys, components turbine blades, bearings, seals, remain a performance limiting factor due to their propensity, despite extensive...
Density-functional theory (DFT) is used to identify phase-equilibria in multi-principal-element and high-entropy alloys (MPEAs/HEAs), including duplex-phase eutectic microstructures. A combination of composition-dependent formation energy electronic-structure-based ordering parameters were a transition from FCC BCC favoring mixtures, these predictions experimentally validated the Al-Co-Cr-Cu-Fe-Ni system. This work establishes pathway for design optimization next-generation multiphase...