About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
| Presentation Title |
Laser Powder Bed Fusion of Rhenium: Process Development and Microstructural Evolution |
| Author(s) |
Guru P. Dinda, Raden Gustinvil |
| On-Site Speaker (Planned) |
Guru P. Dinda |
| Abstract Scope |
Rhenium’s outstanding properties, such as its high melting point and exceptional combination of strength and ductility, make it highly valuable for applications in extreme environments, including ultra-high-temperature rocket engines. However, traditional manufacturing methods for Rhenium are hindered by significant challenges, particularly its very high work-hardening rate. Here we report the successful development of a laser powder bed fusion process for Rhenium, achieving a deposition density exceeding 99.5%. The microstructure of the as-deposited Rhenium was analyzed using SEM, EBSD, and XRD. Tensile testing revealed an extraordinary combination of yield strength (> 400 MPa), UTS (> 700 MPa) and ductility (> 14%) in the as-deposited state. A systematic correlation between input laser energy density and tensile properties was identified. Remarkably, both tensile elongation and UTS substantially increased after hot isostatic pressing. This research expands the potential applications of additive manufacturing of Rhenium for advanced uses in aerospace, defense, and other high-performance sectors. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, High-Temperature Materials, Mechanical Properties |