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Excellent superelasticity in a Co-Ni-Ga high-temperature shape memory alloy processed by directed energy deposition

dc.date.accessioned2023-05-17T13:21:12Z
dc.date.available2023-05-17T13:21:12Z
dc.date.issued2020-04-30
dc.identifierdoi:10.17170/kobra-202305097984
dc.identifier.urihttp://hdl.handle.net/123456789/14713
dc.description.sponsorshipThis work was supported by the Deutsche Forschungsgemeinschaft (DFG) [grant number 398899207].eng
dc.language.isoengeng
dc.rightsNamensnennung 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjecthigh-temperature shape memory alloyseng
dc.subjectadditive manufacturingeng
dc.subjectlaser meltingeng
dc.subjectpseudoelasticityeng
dc.subjectdirect microstructure designeng
dc.subject.ddc620
dc.subject.ddc660
dc.titleExcellent superelasticity in a Co-Ni-Ga high-temperature shape memory alloy processed by directed energy depositioneng
dc.typeAufsatz
dcterms.abstractA Co-Ni-Ga high-temperature shape memory alloy has been additively manufactured by directed energy deposition. Due to the highly anisotropic microstructure, i.e. columnar grains featuring a strong near-⟨001⟩ texture in build direction, the as-built material is characterized by a very low degree of constraints and, thus, shows excellent superelasticity without conducting a post-process heat treatment. As characterized by in situ deformation testing and post-mortem microstructural analysis, additive manufacturing employing directed energy deposition seems to be highly promising for processing of shape memory alloys, which often suffer difficult workability. The present work establishes a new pathway towards realization of high performance shape memory alloys by additive manufacturing and, thus, will stimulate further research in this field directed towards application.eng
dcterms.accessRightsopen access
dcterms.creatorLauhoff, Christian
dcterms.creatorSommer, Niklas
dcterms.creatorVollmer, Malte
dcterms.creatorMienert, Gabriel
dcterms.creatorKrooß, Philipp
dcterms.creatorBöhm, Stefan
dcterms.creatorNiendorf, Thomas
dc.relation.doidoi:10.1080/21663831.2020.1756495
dc.relation.projectidgrant number 398899207
dc.subject.swdMemory-Legierungger
dc.subject.swdRapid Prototyping <Fertigung>ger
dc.subject.swdLaserschmelzenger
dc.subject.swdPseudoelastizitätger
dc.subject.swdMikrostrukturger
dc.subject.swdCobaltlegierungger
dc.subject.swdNickellegierungger
dc.subject.swdGalliumlegierungger
dc.type.versionpublishedVersion
dcterms.source.identifiereissn:2166-3831
dcterms.source.issueIssue 8
dcterms.source.journalMaterials Research Letterseng
dcterms.source.pageinfo314-320
dcterms.source.volumeVolume 8
kup.iskupfalse


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