Effect of Build Orientation on Fatigue Performance of Ti-6Al-4V Parts Fabricated via Laser-Based Powder Bed Fusion

dc.creatorTorries, Brian
dc.creatorShamsaei, Nima
dc.creatorThompson, Scott
dc.date.accessioned2021-11-02T13:57:38Z
dc.date.available2021-11-02T13:57:38Z
dc.date.issued2017
dc.description.abstractThe effects of build orientation on the fatigue behavior of additively-manufactured Ti-6Al-4V using a Laser-Based Power Bed Fusion (L-PBF) process is investigated. Ti-6Al-4V rods were manufactured in vertical, horizontal, and 45º angle orientations. The specimens were then machined and polished along the gage section in order to reduce the effects of surface roughness on fatigue behavior. Fully-reversed strain-controlled uniaxial fatigue tests were performed at various strain amplitudes with frequencies adjusted to maintain an average constant strain rate throughout testing. Results indicate slight variation in fatigue behavior of specimens fabricated in the different orientations investigated. Fractography was conducted using scanning electron microscopy after mechanical testing in order to investigate the crack initiation sites and determine the defect responsible for the failure. The experimental program utilized and results obtained will be presented and discussed.en_US
dc.description.departmentMechanical Engineeringen_US
dc.identifier.urihttps://hdl.handle.net/2152/89804
dc.language.isoengen_US
dc.publisherUniversity of Texas at Austinen_US
dc.relation.ispartof2017 International Solid Freeform Fabrication Symposiumen_US
dc.rights.restrictionOpenen_US
dc.subjectfatigueen_US
dc.subjectfractographyen_US
dc.subjectbuild orientationen_US
dc.subjectadditive manufacturingen_US
dc.subjectTi-6Al-4Ven_US
dc.titleEffect of Build Orientation on Fatigue Performance of Ti-6Al-4V Parts Fabricated via Laser-Based Powder Bed Fusionen_US
dc.typeConference paperen_US

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