About this Abstract |
Meeting |
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
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Symposium
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Special Session
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Presentation Title |
Composition-processing-properties Relationships for In Situ Reinforced Ti-B4C-BN Composites via Directed Energy Deposition |
Author(s) |
Kellen D. Traxel, Amit Bandyopadhyay |
On-Site Speaker (Planned) |
Kellen D. Traxel |
Abstract Scope |
Composite material development via laser-based additive manufacturing offers many exciting advantages to manufacturers; however, a significant challenge exists in our understanding of process-property relationships for these novel materials. Herein we present our work on the effects of input processing parameters on a highly oxidation-resistant titanium matrix composite towards influencing the microstructure and properties for high-temperature applications. By adjusting the linear input energy density, a composite feedstock of titanium-boron carbide-boron nitride (5wt% overall reinforcement) resulted in a highly reinforced microstructure composed of borides, carbides, and nitrides, with variable properties and oxidation performance depending on the overall input energy. Single-tracks and bulk samples were fabricated to understand the processing characteristics better and in situ reactions that occur during processing. Our results indicate that input processing parameters can play a significant role in microstructure formation and oxidation resistance of titanium matrix composites and can be exploited by manufacturers for improving component performance. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |