Laser Metal Deposition of Functionally Gradient Materials from Elemental Copper and Nickel Powders

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dc.creatorKarnati, S.
dc.creatorSparks, T.E.
dc.creatorLiou, F.
dc.creatorNewkirk, J.W.
dc.creatorTaminger, K.M.B.
dc.creatorSeufzer, W.J.
dc.date.accessioned2021-10-20T22:37:05Z
dc.date.available2021-10-20T22:37:05Z
dc.date.issued2015
dc.description.abstractThis work deals with the planning and fabrication of a functionally gradient copper-nickel composition via Laser Metal Deposition (LMD). Various compositions of copper and nickel were made by blending different weight percentages which were then sequentially deposited to fabricate functionally gradient copper-nickel thin-wall structures. Analyses were performed by sectioning the thin-wall samples for metallographic, hardness, X-ray diffraction (XRD) and Energy Dispersive X-ray Spectroscopy (EDS) studies. The fabrication was studied for identifying and corroborating the deposited compositions and their corresponding gradients. XRD analyses were performed to identify the crystal structure of the deposit. EDS analysis was instrumental in identifying the variation in composition and realizing the gradient in between compositions. Consequences of using different laser beam intensity profiles and varying laser power duty cycles were realized by analyzing the copper-nickel concentration trends obtained from EDS analyses. Hardness testing was successful in capturing the decreasing trends in strength with decreasing nickel concentration.en_US
dc.description.departmentMechanical Engineeringen_US
dc.identifier.urihttps://hdl.handle.net/2152/89378
dc.language.isoengen_US
dc.publisherUniversity of Texas at Austinen_US
dc.relation.ispartof2015 International Solid Freeform Fabrication Symposiumen_US
dc.rights.restrictionOpenen_US
dc.subjectfunctionally gradient materialsen_US
dc.subjectcopper-nickelen_US
dc.subjectLaser Metal Depositionen_US
dc.titleLaser Metal Deposition of Functionally Gradient Materials from Elemental Copper and Nickel Powdersen_US
dc.typeConference paperen_US

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2015 International Solid Freeform Fabrication Symposium