About this Abstract |
Meeting |
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
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Symposium
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Poster Session
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Presentation Title |
Processing of In Situ Titanium Metal Matrix Composites via Directed Energy Deposition and Selective Laser Melting |
Author(s) |
Kellen D. Traxel, Amit Bandyopadhyay |
On-Site Speaker (Planned) |
Kellen D. Traxel |
Abstract Scope |
Demand for advanced material development via powder-based metal additive manufacturing (AM) methods has increased with growing AM adoption; however, limited process-microstructure-properties relationships exist for AM-produced advanced composite materials. In this poster, we present several of our works on the development of an in situ reactive, oxidation-resistant titanium metal-matrix composite reinforced with boron nitride (BN) and boron carbide (B4C) via both directed energy deposition (DED) and selective laser melting (SLM). Detailed characterization and testing reveal the efficacy of ceramic reinforcement towards tailoring the microstructure and properties of these composites, particularly regarding high-temperature oxidation performance. While initially developed using DED, careful processing optimization via SLM resulted in high-density bulk composites that can be used in high-temperature applications. Our results demonstrate that DED can be utilized as a platform for preliminary material development before the utilization of powder-bed-based methods such as SLM for full-scale production. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |