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Additive Manufacturing of Compositionally-Graded AISI 316L to CoCrMo Structures by Directed Energy Deposition

dc.date.accessioned2021-12-20T15:11:26Z
dc.date.available2021-12-20T15:11:26Z
dc.date.issued2021-08-30
dc.identifierdoi:10.17170/kobra-202112175279
dc.identifier.urihttp://hdl.handle.net/123456789/13447
dc.description.sponsorshipGefördert durch den Publikationsfonds der Universität Kasselger
dc.language.isoengeng
dc.rightsNamensnennung 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectadditive manufacturingeng
dc.subjectdirected energy depositioneng
dc.subjectcompositionally-graded materialseng
dc.subjectfunctionally-graded materialseng
dc.subjectmechanical propertieseng
dc.subjectmicrostructural evolutioneng
dc.subjectcomputational material scienceeng
dc.subject.ddc600
dc.titleAdditive Manufacturing of Compositionally-Graded AISI 316L to CoCrMo Structures by Directed Energy Depositioneng
dc.typeAufsatz
dcterms.abstractIn the present study, compositionally-graded structures of AISI 316L and CoCrMo alloy are manufactured by powder-based laser-beam directed energy deposition (DED-LB). Through a process-integrated adjustment of powder flow, in situ alloying of the two materials becomes feasible. Thus, a sharp and a smooth transition with a mixture of both alloys can be realized. In order to investigate the phase formation during in situ alloying, a simulation approach considering equilibrium calculations is employed. The findings reveal that a precise compositional as well as functional gradation of the two alloys is possible. Thereby, the chemical composition can be directly correlated with the specimen hardness. Moreover, phases, which are identified by equilibrium calculations, can also be observed experimentally using scanning electron microscopy (SEM) and energy-dispersive X-ray-spectroscopy (EDS). Electron backscatter diffraction (EBSD) reveals epitaxial grain growth across the sharp transition region with a pronounced <001>-texture, while the smooth transition acts as nucleus for the growth of new grains with <101>-orientation. In light of envisaged applications in the biomedical sector, the present investigation demonstrates the high potential of an AISI 316L/CoCrMo alloy material combination.eng
dcterms.accessRightsopen access
dcterms.creatorSommer, Niklas
dcterms.creatorKluge, Philipp
dcterms.creatorStredak, Florian
dcterms.creatorEigler, Sascha
dcterms.creatorHill, Horst
dcterms.creatorNiendorf, Thomas
dcterms.creatorBöhm, Stefan
dc.relation.doidoi:10.3390/cryst11091043
dc.subject.swdRapid Prototyping <Fertigung>ger
dc.subject.swdDirect Energy Depositionger
dc.subject.swdMechanische Eigenschaftger
dc.subject.swdFunktioneller Gradientenwerkstoffger
dc.subject.swdMikrostrukturger
dc.type.versionpublishedVersion
dcterms.source.identifiereissn:2073-4352
dcterms.source.issueIssue 9
dcterms.source.journalCrystalseng
dcterms.source.volumeVolume 11
kup.iskupfalse
dcterms.source.articlenumber1043


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