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CuCrZr processed by laser powder bed fusion — Processability and influence of heat treatment on electrical conductivity, microstructure and mechanical properties

dc.date.accessioned2021-08-23T12:35:15Z
dc.date.available2021-08-23T12:35:15Z
dc.date.issued2021-06-16
dc.identifierdoi:10.17170/kobra-202108104523
dc.identifier.urihttp://hdl.handle.net/123456789/13152
dc.description.sponsorshipGefördert im Rahmen des Projekts DEALger
dc.language.isoengeng
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectadditive manufacturingeng
dc.subjectCuCrZreng
dc.subjectelectrical conductivityeng
dc.subjectlaser powder bed fusioneng
dc.subjectlow-cycle fatigueeng
dc.subjectmechanical propertieseng
dc.subjectmicrostructureeng
dc.subject.ddc620
dc.subject.ddc660
dc.titleCuCrZr processed by laser powder bed fusion — Processability and influence of heat treatment on electrical conductivity, microstructure and mechanical propertieseng
dc.typeAufsatz
dcterms.abstractCuCrZr parts were fabricated by laser beam powder bed fusion (LB-PBF) technique and subjected to different heat treatments. As a result, four different conditions were considered for further investigations, that is, the as-built condition, conditions of maximum hardness (MH) and maximum electrical conductivity (MC), and a condition representing a compromise between hardness and conductivity (H&C). Microstructural evolution and performance under monotonic and cyclic loading were studied. Fracture surfaces revealed significant volume fractions of process-induced defects such as lack-of-fusion (LoF) and pores, irrespective of the condition considered. The effect of these defects on the tensile behavior was found to be marginal, whereas the fatigue performance was noticeably affected due to multiple crack nucleation promoted by large LoF defects. Assessment by computed tomography (CT) revealed a strong influence of the geometry and therefore, of the scan path length, on resulting microstructure and defect population eventually rationalizing obvious discrepancies to the initial process parameter and material density optimization study.eng
dcterms.accessRightsopen access
dcterms.creatorWegener, Thomas
dcterms.creatorKoopmann, Julian
dcterms.creatorRichter, Julia
dcterms.creatorKrooß, Philipp
dcterms.creatorNiendorf, Thomas
dc.relation.doidoi:10.1111/ffe.13527
dc.subject.swdSelektives Laserschmelzenger
dc.subject.swdRapid Prototyping <Fertigung>ger
dc.subject.swdKupferger
dc.subject.swdChromger
dc.subject.swdZirkoniumger
dc.subject.swdElektrische Leitfähigkeitger
dc.subject.swdErmüdung bei niedrigen Lastspielzahlenger
dc.subject.swdMechanische Eigenschaftger
dc.subject.swdMikrostrukturger
dc.type.versionpublishedVersion
dcterms.source.identifiereissn:1460-2695
dcterms.source.issueIssue 9
dcterms.source.journalFatigue & Fracture of Engineering Materials & Structures (FFEMS)eng
dcterms.source.pageinfo2570-2590
dcterms.source.volumeVolume 44
kup.iskupfalse


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