About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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Additive Manufacturing of Refractory Metallic Materials
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Presentation Title |
Rapid Screening of Nb-base Alloys for Additive Manufacturing |
Author(s) |
Kaitlyn M. Mullin, Sophia Wu, Carolina Frey, James Lamb, McLean Echlin, Sebastian Kube, Noah Philips, Tresa Pollock |
On-Site Speaker (Planned) |
Kaitlyn M. Mullin |
Abstract Scope |
A primary limitation for commercial adoption of high-strength refractory alloys has been their fabricability. Additive manufacturing (AM) offers new possibilities to successfully fabricate a larger selection of these alloys, including higher strength Nb-base alloys. However, the susceptibility of this alloy class to defect formation under laser-based processes, such as crack and weld-based defects, remains poorly understood across the refractory compositional space. Given the extreme challenges and cost associated with the production of refractory powders, this research utilizes a rapid screening methodology that combines predictive defect formation metrics with single laser track experiments on arc-melted and wrought substrates. Here, we present the results from conducting laser track experiments across the Nb-base alloy compositional space, including historical alloys (C103, WC3009, Cb-752) and refractory multi-principal element alloys (RMPEAs). The implications for future alloy design of defect-resistant refractory alloys for AM are discussed. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Solidification, Characterization |