About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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Advanced Characterization Techniques for Quantifying and Modeling Deformation
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Presentation Title |
Validation Study of Laboratory-scale High-energy Diffraction Microscopy (Lab-HEDM) |
Author(s) |
Seunghee Oh, Yuefeng Jin, Sangwon Lee, Wenxi Li, Ashley Bucsek |
On-Site Speaker (Planned) |
Seunghee Oh |
Abstract Scope |
High-energy diffraction microscopy (HEDM) has emerged as a valuable technique for nondestructive characterization of elastic strain tensor, crystallographic orientation, grain location, and volume in polycrystalline materials. However, its accessibility is limited due to the requirement of synchrotron sources. We developed a laboratory-scale HEDM instrument utilizing a gallium-indium liquid metal jet X-ray source to generate a 24 keV box beam. A far-field HEDM analysis was conducted using the HEXRD python package after preprocessing the acquired diffraction images. The objective of this research is to cross-validate the analysis results with outcomes obtained from other characterization tools, specifically diffraction contrast tomography (DCT) and micro-load frame, which enable measurement of 3D microscale properties of materials. Through this validation, we assess the potential of our instrument setup (Lab-HEDM) for diverse material analyses. This research aims to broaden the accessibility of HEDM by providing a laboratory-scale alternative to synchrotron-based systems. |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, Mechanical Properties, |