About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
| Presentation Title |
Additive Manufacturing and High-Temperature Performance of Molybdenum-Based Multi-Material Lattice Structures |
| Author(s) |
Zana Eren, Ozkan Gokcekaya, Takayoshi Nakano, Zahit Mecitoglu |
| On-Site Speaker (Planned) |
Zana Eren |
| Abstract Scope |
Refractory and multi-material design strategies offer promising pathways for high-temperature aerospace applications, where conventional materials often fall short. This study investigates the additive manufacturing of molybdenum via laser-based powder bed fusion (PBF-L), focusing on two steps: in-situ Rhenium alloying and multi-material fabrication using Inconel. The processing challenges of pure molybdenum are addressed through optimized parameters and alloying strategies. Cellular lattice structures are subsequently fabricated using both pure molybdenum and molybdenum–Inconel combinations. Their mechanical performance is evaluated through high-temperature quasi-static compression tests up to 1000 °C, supported by microstructural characterizations (SEM, EDS, EBSD). The results reveal deformation mechanisms and thermal stability, highlighting the effects of material gradients and Rhenium addition on strength and ductility at elevated temperatures. This study provides valuable insights into the design and application of next-generation refractory lattice structures for aerospace components operating in thermally extreme environments, such as cooling channels in re-entry or propulsion systems. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, High-Temperature Materials |