Effect of Powder Reuse on Microstructural and Fatigue Properties of Ti-6Al-4V Fabricated via Directed Energy Deposition

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dc.creatorMahtabi, MohammadBagher
dc.creatorYadollahi, Aref
dc.creatorStokes, Ryan
dc.creatorMorgan-Barnes, Courtney
dc.creatorYoung, Joseph
dc.creatorDoude, Haley
dc.creatorBian, Linkan
dc.date.accessioned2023-01-26T14:12:44Z
dc.date.available2023-01-26T14:12:44Z
dc.date.issued2022
dc.description.abstractIn metal additive manufacturing (AM) processes, due to the high cost of metal powder, it is common to reuse the collected powder from the build envelope for future builds. Powder reuse may adversely affect the powder characteristics, including the flowability, size distribution, chemical composition, resultant microstructural, and consequently, mechanical properties of the fabricated parts. This study aims to investigate the effect of powder reuse on the microstructural features and fatigue performance of Ti-6Al-4V specimens fabricated using a directed energy deposition (DED) process. Characteristics of reused powder particles, such as the size distribution and chemical composition, were evaluated and compared with that of virgin powder. Microstructural features and characteristics of the process-induced defects were examined using scanning electron microscopy and x-ray computed tomography, respectively. Fatigue performance of the specimens fabricated using reused powder was evaluated and compared to their control counterparts, fabricated using virgin powder.en_US
dc.description.departmentMechanical Engineeringen_US
dc.identifier.urihttps://hdl.handle.net/2152/117302
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/44183
dc.language.isoengen_US
dc.relation.ispartof2022 International Solid Freeform Fabrication Symposiumen_US
dc.rights.restrictionOpenen_US
dc.subjectAdditive manufacturingen_US
dc.subjectPowder recyclingen_US
dc.subjectVirgin powderen_US
dc.subjectPowder flowabilityen_US
dc.subjectPowder size distributionen_US
dc.titleEffect of Powder Reuse on Microstructural and Fatigue Properties of Ti-6Al-4V Fabricated via Directed Energy Depositionen_US
dc.typeConference paperen_US

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2022 International Solid Freeform Fabrication Symposium