| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Meeting Materials Challenges for the Future of Fusion Energy
|
| Presentation Title |
Development of Industrially Scalable High-Temperature Steels for Fusion Applications |
| Author(s) |
David Bowden, Viacheslav Kuksenko, Jack Haley, Jim Johnson, Stephen Jones, Nicholas Lavery, Marcus Crabbe, Peter Barnard |
| On-Site Speaker (Planned) |
David Bowden |
| Abstract Scope |
Future commercial fusion plants require high thermodynamic efficiency to produce sufficient electrical power and achieve commercial viability. For this, high temperature structural materials are required, particularly in the breeder blanket region, where peak material temperatures exceeding 600°C and radiation damage of 38 displacements per atom (dpa) per full-power year (fpy) are anticipated.
The UK Atomic Energy Authority (UKAEA) is developing high-temperature steels intended for this purpose, focussing on repeatable production at tonnage scale, using appropriate thermo-mechanical treatments (TMTs). These steels utilise a mixture of precipitate strengthening and an optimised martensitic structure to enable radiation tolerance and high temperature mechanical resilience. This talk will give an overview of these steels, primarily focussing the advanced reduced activation ferritic martensitic (ARAFM) steels being developed within the Neutron Irradiation of Advanced Steels (NEURONE) programme. Ongoing developments relating to boron-strengthened reduced-activation ferritic-martensitic (BRAFM) and oxide dispersion strengthened (ODS) steels will also be explored. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, High-Temperature Materials, Iron and Steel |