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Meeting 2026 TMS Annual Meeting & Exhibition
Symposium Additive Manufacturing: Advanced Characterization With Synchrotron, Neutron, and In Situ Laboratory-scale Techniques IV
Presentation Title Imaging External Fields’ Influence on Additive Manufacturing
Author(s) Peter D. Lee, Xianqiang Fan, Harry Chapman, Tristan Fleming, Samuel Clark, Sebastian Marussi, Robert Atwood, Alexander Rack, Catherine Tonry, Chu Lun Alex Leung, Andrew Kao
On-Site Speaker (Planned) Peter D. Lee
Abstract Scope The application of external fields during AM processes promises to add an additional control parameter to including the melt-pool flow and solidification; however the underlying phenomena remain unclear and are poorly quantified. Applying external fields, including magnetic fields or ultrasound, introduces additional forces altering the melt pool dynamics to laser coupling. Here, we demonstrate that synchroton imaging can reveal and quantify the control mechanisms. Imaging magnetic fields applied during laser powder bed fusion, we found that an appropriately applied field can stabilise the keyhole, reducing keyhole porosity. During directed energy deposition we demonstrate that both ultrasound and magnetic fields can disrupt flow and dramatically alter the microstructural features formed.
Proceedings Inclusion? Planned:
Keywords Additive Manufacturing, Solidification,

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Placeholder - TBD
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