About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advancing the Frontier of Powder Materials Processing and Sintering: A MPMD/EPD Symposium in Honor of Eugene Olevsky
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| Presentation Title |
X-ray Diffraction Analysis of Recycled Titanium Alloys in Additive Manufacturing |
| Author(s) |
Rama Diop, Marwan Haddad, Sarah Wolff |
| On-Site Speaker (Planned) |
Rama Diop |
| Abstract Scope |
This research examines the microstructural evolution of Ti-6Al-4V (Ti64) powders generated using the hydride-dehydride (HDH) process from recycling waste from various manufacturing streams during the laser directed energy deposition (L-DED) process. Shape irregularities and higher impurity content in the HDH Ti64 powders can impact defect formation and microstructural evolution. This work intends to examine the influence of powder morphology, composition, and mass flow rate on beta, alpha, and martensite formation, as well as changes in dislocation density during solidification using in situ ultrafast X-ray diffraction. Additionally, solid-state phase transformations due to thermal cycling during multilayer printing will also be examined. This data will be combined with mechanical property evaluation to determine the viability of recycled Ti-6Al-4V as alternative feedstock options to commercial feedstocks, and to promote circular economies and resilient supply chains. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Titanium, Recycling and Secondary Recovery |