About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Physical Thermo-Mechanical Simulation: Laboratory Advances and In-Situ Diffraction Methods
|
| Presentation Title |
Data-Dense Thermal Gradient Experiments for Rapid Determination of Critical Phase Transitions and Kinetic Parameters |
| Author(s) |
Kaila Morgen Bertsch, Jennifer Glerum, Kenley Hendrawan, Michael Juhasz, Noah Welch |
| On-Site Speaker (Planned) |
Kaila Morgen Bertsch |
| Abstract Scope |
Traditional methods for validating thermophysical properties and temperature-dependent microstructural evolution are prohibitively slow, limiting materials discovery and model development. We developed a single-sample method to characterize microstructural evolution as a function of temperature using a Gleeble thermomechanical simulator to impose a controlled thermal gradient with in situ temperature monitoring. Additively manufactured Ti-6Al-4V samples were heated to create temperature gradients from 1100 °C at the center to approximately 200 °C at the edge, and from 550 °C to near room temperature, with various hold times, to isolate processing effects on transformation behaviors. Some samples were then aged in a furnace to assess microstructure evolution after prior thermal exposure. Post mortem SEM, EBSD, hardness mapping, and EPMA were used to correlate microstructure with local temperature history. This method enabled accurate quantification of the beta transus, microstructural coarsening, and grain growth, demonstrating rapid extraction of critical thermal and kinetic data from one sample. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Phase Transformations, Characterization, Titanium |