Effect of Powder Degradation on the Fatigue Behavior of Additively Manufactured As-Built Ti-6Al-4V

dc.creatorCarrion, Patricio E.
dc.creatorSoltani-Tehrani, Arash
dc.creatorThompson, Scott M.
dc.creatorShamsaei, Nima
dc.date.accessioned2021-11-11T15:05:48Z
dc.date.available2021-11-11T15:05:48Z
dc.date.issued2018
dc.description.abstractAdditive manufacturing (AM) technology has enabled many industries to generate functional parts with an increased level of complexity via a layer-by-layer melting. In laser-powder bed fusion (L-PBF), the most commonly used AM process for metals, powder is often recycled due to its high cost. However, there is no comprehensive study on how recycling powder affects its rheological properties, and the mechanical and fatigue behavior of the final manufactured part. In this study, a comparison of new and used Ti-6Al-4V powder characteristics was made. The comparison includes morphology, size distribution, as well as monotonic tensile and fatigue behavior of fabricated specimens. Conclusions and suggestions on powder recycling are made. Results indicate that the powder particle size distribution (PSD) becomes narrower and the morphology of the particles change with recycling. However, no comparable effect was observed on the monotonic tensile and fatigue behavior of the AM as-built Ti-6Al-4V specimens.en_US
dc.description.departmentMechanical Engineeringen_US
dc.identifier.urihttps://hdl.handle.net/2152/90212
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/17133
dc.language.isoengen_US
dc.publisherUniversity of Texas at Austinen_US
dc.relation.ispartof2018 International Solid Freeform Fabrication Symposiumen_US
dc.rights.restrictionOpenen_US
dc.subjectlaser-powder bed fusionen_US
dc.subjectTi-6Al-4Ven_US
dc.subjectfatigue lifeen_US
dc.subjectpowder degradationen_US
dc.subjectpowder recyclingen_US
dc.titleEffect of Powder Degradation on the Fatigue Behavior of Additively Manufactured As-Built Ti-6Al-4Ven_US
dc.typeConference paperen_US

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