About this Abstract |
Meeting |
6th International Congress on 3D Materials Science (3DMS 2022)
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Symposium
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6th International Congress on 3D Materials Science (3DMS 2022)
|
Presentation Title |
Development of 3D EBSD Serial Sectioning Workflows for Enhanced Local Orientation Analysis |
Author(s) |
Gregory E. Sparks, Paul A. Shade, Michael D. Uchic, Stephen R. Niezgoda, Simon Mason, Michael J. Mills, Mark Obstalecki |
On-Site Speaker (Planned) |
Gregory E. Sparks |
Abstract Scope |
In this talk, we discuss recent efforts to improve the fidelity of 3D EBSD data collected by serial sectioning experiments. Of specific interest is the incorporation of high-orientation-precision EBSD analysis. Spherical harmonic transform indexing can provide orientation precision of 0.06° or better, but is limited in accuracy by how precisely the diffraction geometry can be specified. On this latter point, we include a discussion of recent developments in pattern-center fitting for improved absolute accuracy of the local crystal orientation. This talk will also cover additional enhancements to the serial sectioning characterization workflow to include high-precision, non-contact surface height measurement by white-light scanning interferometry, potential techniques for estimating the bulk sample misorientation on a section-by-section basis, and automation strategies for improving repeatability of sample data acquisition conditions. Preliminary 3D EBSD experimental results that demonstrate some of these techniques discussed are presented. |
Proceedings Inclusion? |
Definite: Other |