| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
| Presentation Title |
Laser Assisted Additive Manufacturing of W and W-Re for Fusion Power Application: Material Response in Manufacturing Environment |
| Author(s) |
Katie Estrada , Krishna Kamlesh Verma, Rameshwari Naorem , Hailong Huang , Nicolas Argibay, Vijay K. Vasudevan , Narendra Dahotre |
| On-Site Speaker (Planned) |
Katie Estrada |
| Abstract Scope |
Tungsten is currently favored for critical applications like plasma-facing components in fusion reactors due to its high melting point, superior strength, excellent thermal conductivity, and low thermal expansion. However, its inherently high ductile-to-brittle transition temperature (DBTT) and the severe conditions it faces in reactors, such as irradiation and thermal cycling, lead to embrittlement and flaking, posing significant challenges to the commercialization of fusion reactors. W and W-based alloys are also extremely challenging to process using traditional metallurgical methods like casting and rolling. This study explores laser powder bed fusion (LPBF) additive manufacturing as a viable alternative to conventional tungsten manufacturing methods, enabling the production of complex, high-performance components. Re additions are explored as a pathway to improve the fracture toughness and ductility of W. Results from density measurements, microstructural analysis, crack density assessments, and scratch-based methods for rapid screening and process parameter optimization will also be discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, High-Temperature Materials |