About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Recent Advances in Electron Back-Scattered Diffraction and Related Techniques
|
| Presentation Title |
Phase Detection in Martensitic Steels by EBSD at Lower Accelerating Voltages |
| Author(s) |
Patrick Gregory Callahan, David Rowenhorst |
| On-Site Speaker (Planned) |
Patrick Gregory Callahan |
| Abstract Scope |
The microstructures of many steels can be particularly complex, containing multiple phases and features that necessitate observation at the nm scale. Electron backscattered diffraction (EBSD) is a particularly useful technique as it can rapidly identify phase and grain orientation in a single experiment. However, the size of features studied in steels are often near the size of the electron beam interaction volume, causing issues in obtaining quantitative representations of the microstructure. Here we study the quantification of retained austenite (RA) phase fractions in a 10 wt% Ni steel when performing EBSD at accelerating voltages of 5 kV and lower, which is enabled by newer direct electron detectors. We show the differences in observed phase fractions in nm-scale second phase features that are observable due to the smaller interaction volumes at lower accelerating voltages. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Iron and Steel, |