About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
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Environmental Degradation of Multiple Principal Component Materials
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Presentation Title |
A High Throughput CALPHAD development method designing Single Phase Alloy Platform For the Exploration of Light-Weighting Elements' as Passivators in Co-Free FCC Alloys |
Author(s) |
Peter Connors, John Scully |
On-Site Speaker (Planned) |
Peter Connors |
Abstract Scope |
The emergence of compositionally-complex alloys (CCAs) as a new frontier of corrosion-resistant alloys has opened doors for advanced optimization of the usage of corrosion-resistant elements for promoting passivation of each phase and self-healing. However, researchers must contend with a design space with vast compositional and microstructural possibilities, and a literature base focused primarily on one-off alloy development. In this work, a methodology for the rapid (~1 alloy/second) discovery of alloy compositions possessing the desired phase stability using the CALPHAD approach is presented. This approach utilizes equilibrium information regarding a specific composition such as its solidus temperature to maximize the probability of discovering an alloy with a disordered matrix-(or single-)phase microstructure. Further, a set of alloys with common Co-free FCC elements (FexNiy)80Cr10(AlaSibTic)10 was designed using this tool to further explore and define the specific impacts of light weighting elements Al, Si, Ti have on corrosion performance in a single-phase microstructure. |
Proceedings Inclusion? |
Planned: |
Keywords |
High-Entropy Alloys, Environmental Effects, Other |