| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Bcc-Superalloys
|
| Presentation Title |
Interaction of Cr-Si-Base Alloys with Ceramics at High Temperatures |
| Author(s) |
Lucas Pelchen, Giulia Bianchi, Maren Lepple, Anke Silvia Ulrich |
| On-Site Speaker (Planned) |
Anke Silvia Ulrich |
| Abstract Scope |
Cr-Si-base alloys are promising materials for future gas turbines and other high-temperature applications operating under harsh conditions. During fabrication and in service, Cr-Si-alloys are in contact with ceramics. To enable near-net-shape casting, the alloy melt must be compatible with the ceramic crucibles and molds. A metal-ceramic interface exists between the metallic base material and a potential thermal barrier coating (TBC) or thermally grown oxide in service.
In this study, a Cr-Si alloy is brought into contact with powders of ceramics commonly used for casting molds or crucibles (e.g. ZrSiO4, Al2O3, 3YSZ) and potential future TBC systems such as high entropy oxides. The interaction between metallic alloy and ceramic is investigated after heat treatment and in contact with metallic melt using scanning electron microscopy equipped with energy-dispersive X-ray spectroscopy and X-ray diffraction. Based on the investigations conducted, the ceramics showed comparable trends in both possible applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Other, Environmental Effects |