| About this Abstract |
| Meeting |
TMS Specialty Congress 2025
|
| Symposium
|
The 7th International Congress on 3D Materials Science (3DMS 2025)
|
| Presentation Title |
Interrogating 3D Grain Morphology and Crystallographic Texture via Automated Polarized Light Microscopy |
| Author(s) |
Paul Chao, Rhianna M Oakley, Andrew T Polonsky |
| On-Site Speaker (Planned) |
Paul Chao |
| Abstract Scope |
Polycrystalline materials exhibit properties that are directly influenced by the morphology and crystallographic orientation of their constituent grains. In this work, we interrogate the 3D grain morphology and texture of polycrystalline materials (such as alpha titanium) via polarized light microscopy (PLM) within a commercially available automated serial-sectioning system platform. PLM leverages optical birefringence in anisotropic/uniaxial crystalline materials to assess crystal inclination relative to the incident polarized light beam, resulting in image contrast that reveals grain orientation. The serial-sectioning process automates conventional metallographic preparation, and we implement automated control routines to collect large image montages at various polarization states by rotating the sample to discrete angular intervals. We introduce data reconstruction techniques to rapidly determine the grain morphology and crystallographic texture in centimeter-scale volumes. Details of novel approaches to analysis will be presented. Applications to macroscale texture quantification and understanding mechanical properties in lower-symmetry and multi-phase systems will also be discussed. |
| Proceedings Inclusion? |
Undecided |