About this Abstract |
| Meeting |
11th International Symposium on Superalloy 718 and Derivatives 2026: Legacy, Innovations, and Future Directions
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| Symposium
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Superalloy 718 and Derivatives 2026: Legacy, Innovations, and Future Directions
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| Presentation Title |
Characteristics of Immiscible Alloy Systems Using Advanced Manufacturing Processes and Spatial Correlation Functions |
| Author(s) |
Katherine M. Moody, Charles Emmett Maher, Karen Daniels, Bharat Gwalani, Christopher Rock |
| On-Site Speaker (Planned) |
Christopher Rock |
| Abstract Scope |
Processing of immiscible systems such as Co-Cu and Fe-Cu on a bulk scale present challenges in controlling microstructural features associated with uncontrolled phase separation. We explore microstructure control using advanced manufacturing techniques such as laser and electron beam powder bed fusion (PBF) and friction stir consolidation (FSC) of gas atomized and mechanically alloyed feedstock powders. Control of the phase domains of two-phase immiscible systems during solidification is explored using melt parameters in LPBF and a custom solidification controller for the EB PBF process while solid state processing microstructures are observed using powder metallurgy (P/M) and friction stir consolidation (FSC). Process maps are generated to observe the influence of solid state and solidification conditions on second phase size and distribution. Microstructures are characterized using spatial correlation functions to study the connectedness of the phases relative to one another using imaging, compositional and crystallographic characteristics of the data. These analytical techniques can also be applied to traditional Ni and Co base alloys with high content of second phase to gain insight on microstructural influences on properties. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |