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Meeting 2026 TMS Annual Meeting & Exhibition
Symposium Verification, Calibration, and Validation Approaches in Modeling the Mechanical Performance of Metallic Materials
Presentation Title Probing the Effects of Anisotropy on the Micromechanical and Microstructural Evolution of Structural Materials Using In Situ Synchrotron X-Ray Diffraction
Author(s) Rachel Lim
On-Site Speaker (Planned) Rachel Lim
Abstract Scope Understanding how anisotropy influences the micromechanical and microstructural evolution of structural materials is critical for predicting material performance and failure. In this study, we leverage advanced in situ synchrotron x-ray diffraction techniques—specifically, high-energy x-ray diffraction microscopy (HEDM)—to systematically probe the effects of anisotropy during the polycrystalline materials deformation. By combining far-field and near-field HEDM, we obtain comprehensive, three-dimensional measurements of grain orientation changes and the development of orientation gradients at both grain-averaged and sub-grain scales. Our results reveal how anisotropic material properties contribute to heterogeneous deformation. These findings highlight the importance of high-fidelity experimental data for calibrating and validating microstructure-informed mechanical models. Ultimately, integrating such data with computational modeling frameworks will accelerate the qualification and deployment of new, anisotropy-tailored material systems in industrial applications.
Proceedings Inclusion? Planned:
Keywords Characterization, Mechanical Properties,

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