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 |
Fine-tuning Hierarchy: Targeted In-situ Annealing of Additively Manufactured Titanium Lattices |
Author(s) |
Connor J. Rietema, John Roehling, William Smith, Gabe Guss, Kaila Bertsch |
On-Site Speaker (Planned) |
Connor J. Rietema |
Abstract Scope |
The design of additively manufactured fault tolerant titanium lattices is an enabling technology across multiple fields including aerospace and biocompatible materials. One approach to realizing complex fault tolerant structures, such as lattices, is to control the printed microstructure in three dimensions. This level of microstructure control could allow the production of lattices with nodes that remain soft and ductile, while the struts provide higher strength without the risk of catastrophic brittle failure. In this work, we show targeted microstructural control of Ti-6Al-4V on a layer-by-layer basis using a custom in-house powder bed fusion laser system equipped with a 2D annealing laser and FLIR thermal imaging system. This work was performed under the auspices of the United States Department of Energy by Lawrence Livermore National Laboratory (LLNL) under Contract DE-AC52-07NA27344. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Titanium, Process Technology |