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About this Abstract
Meeting 2026 TMS Annual Meeting & Exhibition
Symposium Thermodynamics and Kinetics of Alloys IV
Presentation Title Integrating high-throughput dual-anneal diffusion-multiple experiments with precipitation simulations to investigate interfacial energy and sequential precipitations in Fe-Cr-Mo
Author(s) Jessica Garnett, Ji-Cheng Zhao
On-Site Speaker (Planned) Jessica Garnett
Abstract Scope Dual-anneal diffusion multiples (DADMs) were annealed at a high temperature, 1200 °C, to create wide gradients of composition followed by a secondary anneal at lower temperatures to induce phase transformations from supersaturated solid solutions. SEM and energy dispersive X-ray spectroscopy (EDS) were used to collect spatial composition and phase morphology of the precipitates. A large dataset (atlases) connecting time, temperature, and composition with precipitate size distribution was produced. Kinetic simulations using TC-Prisma, a Kampmann-Wagner numerical approach based precipitation simulation module within Thermo-Calc, are employed to fit the interfacial energy values of the different phases to the experimental observations. This integrated experimental-computational study focuses on the results from the wide range of the bcc phase in the Fe-Cr-Mo ternary within the DADMs and illustrates the applicability of the technique to other binary and ternary composition gradients. Our data will provide test grounds on ways to simulate sequential precipitations from solid solutions.
Proceedings Inclusion? Planned:

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