| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Bcc-Superalloys
|
| Presentation Title |
Development of (relatively) low cost refractory-ruthenium based superalloys (RRSs). |
| Author(s) |
Alex William Carruthers, Ed Pickering |
| On-Site Speaker (Planned) |
Alex William Carruthers |
| Abstract Scope |
Ru stabilises a two-phase (A2-B2) field with most refractory metals. Using Ru as a B2 stabiliser provides a simple approach to producing a new class of potential superalloys. For this alloy class to disseminate out of academia, there is a singular issue that must be overcome: Ru is prohibitively expensive. In order to attract industrial attention and funding to accelerate the development of these RRSs, it must be demonstrated that they are economically viable. Thus, the first step in the development of this system must be to demonstrate that it is possible to create a stable A2-B2 microstructure with small additions of Ru.
Compositionally complex Ta-based alloys, incorporating Hf, W, Ti, Zr and Al have been fabricated in order to reduce the density and test the limit of Ru necessary to stabilise the B2 phase. Ru stabilised B2 was found in an as-cast alloy containing 5 wt% Ru. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, |