About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
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Symposium
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Additive Manufacturing: Materials Design and Alloy Development V – Design Fundamentals
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Presentation Title |
Additively Manufactured β-Ti5553 with Laser Powder Bed Fusion: Microstructures and Mechanical Properties of Bulk and Lattice Parts |
Author(s) |
Margaret Wu, Marissa Linne, Thomas Voisin, Nathan Barton, Jianchao Ye, Kavan Hazeli, Y. Morris Wang |
On-Site Speaker (Planned) |
Margaret Wu |
Abstract Scope |
Ti5553 (Ti-5Al-5Mo-5V-3Cr wt.%) is a metastable body-centered cubic alloy with aerospace applications due to its high strength-to-weight ratio. Laser powder bed fusion (L-PBF) allows the layer-by-layer fabrication of complex geometries such as lattices which help reduce part weight. Thus, the successful deployment of L-PBF Ti5553 relies on a fundamental understanding of the the hierarchical microstructures and mechanical properties of its bulk and lattice parts. The techniques used include room-temperature tensile tests, nanoindentation, scanning electron microscopy, electron backscatter diffraction, and transmission electron microscopy. The presence of ꙍ nanoprecipitates in the lattice material distinguishes its microstructure from that of the bulk and moreover, indicates the challenges in predicting bulk mechanical response based on lattice properties. The present results provide a starting framework for the successful printing of Ti5553 bulk and lattice parts by comprehensively examining the processing-structure-property-paradigm of the deposited material system. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Titanium, Characterization |