| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing for Energy Applications II
|
| Presentation Title |
Texture Management in EBM Tungsten Plasma-facing Components for Fusion Reactors |
| Author(s) |
Elizabeth A.I. Ellis, Michael M. Kirka, John R. Echols, Lauren M. Garrison, Christopher Ledford, Sullivan M. Figurskey, Chris D. Rock, Timothy J. Horn, Yutai Katoh, Ryan R. Dehoff |
| On-Site Speaker (Planned) |
Elizabeth A.I. Ellis |
| Abstract Scope |
Fusion power promises abundant, inexpensive, and renewable energy, but only if several technical challenges can be overcome. One such challenge is the design and manufacture of plasma-facing components comprising the divertor and first wall. These components must be made of refractory metals to withstand the enormous heat and neutron loads produced during fusion, must be modular in design to allow for replacement of worn parts, and must have complex internal features to permit instrumentation and cooling. Additive manufacturing may provide a solution to these design challenges, but refractory metals are difficult to adapt to additive processes due to their high melting points, high thermal conductivity, and susceptibility to both brittle failure and oxidation. Nevertheless full-density tungsten plasma-facing components have been produced using electron beam melting. This work discusses varying scan strategy to tailor component texture to its eventual application by promoting favorable grain orientation and morphology in different areas. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |