| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Meeting Materials Challenges for the Future of Fusion Energy
|
| Presentation Title |
Exploration of Ferrous Alloys as Radiation Damage Resistant Materials for Fusion |
| Author(s) |
Sophie Barwick, Jack Haley, Amy Gandy, Christopher Race, Katerina Christofidou, Russell Goodall |
| On-Site Speaker (Planned) |
Sophie Barwick |
| Abstract Scope |
This work explores the life-limiting factors of fusion reactor breeder blanket structural materials, and aims to expand the operational window of current steel options. Existing literature shows manganese and silicon contribute to irradiation-induced degradation and enhance clustering effects in steels, resulting in embrittlement upon reactor cool-down. Therefore, the effects of steel composition on the formation of the clusters under irradiation will be investigated. To fulfil this, Fe-based model alloys have been produced with varying levels of Mn and Si. These will be subject to stimulant reactor irradiation, and the formation of clusters, and the resultant low-temperature embrittlement, analysed. Due to their atomistic scale, transmission electron microscopy and atom probe tomography will be used to determine the occupancy of clusters, particularly their vicinity to irradiation-induced defects. Verification of Mn and Si critical content will then allow compositions to be developed into industrially applicable materials and bound the composition of fusion steels. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Iron and Steel, Nuclear Materials, Other |