About this Abstract |
Meeting |
TMS Specialty Congress 2025
|
Symposium
|
The 7th International Congress on 3D Materials Science (3DMS 2025)
|
Presentation Title |
3D FIB-SEM Tomography - Tool for Determining the Oxidation Mechanism of Sanicro 25 Steel at 700 °C |
Author(s) |
Grzegorz Cempura, Adam Kruk |
On-Site Speaker (Planned) |
Grzegorz Cempura |
Abstract Scope |
Sanicro 25 is a high-temperature austenitic stainless steel offering exceptional creep, corrosion and oxidation resistance. It finds many applications in power generation, e.g., as a material for superheaters in advanced supercritical thermal powerplants. The microstructure of the oxide scale and underlying the sample subjected to 40,000 hours of heat treatment and oxidation were characterized in 3D using FIB-SEM tomography and high-resolution S(TEM) methods.
The tomographic reconstruction data was collected using the slice-and-view technique on the ZEISS CrossBeam 350 microscope using both SE and BSE detectors. The microstructure and phase analysis was done using a Cs-corrected Titan G2 transmission electron microscope. Acquired data was processed using conventional stereological methods and AI-supported (U-NET architecture) to determine microstructural features precisely. Obtained results allowed for the determination of microstructural changes |
Proceedings Inclusion? |
Undecided |