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Damage Tolerance Evaluation of E-PBF-Manufactured Inconel 718 Strut Geometries by Advanced Characterization Techniques

dc.date.accessioned2023-08-02T08:02:33Z
dc.date.available2023-08-02T08:02:33Z
dc.date.issued2020-01-06
dc.identifierdoi:10.17170/kobra-202308028556
dc.identifier.urihttp://hdl.handle.net/123456789/14962
dc.language.isoeng
dc.rightsNamensnennung 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectelectron beam powder bed fusion (E-PBF)eng
dc.subjectInconel 718eng
dc.subjectdamage toleranceeng
dc.subjectlattice structureseng
dc.subjectcyclic behavioreng
dc.subjectdefect analysiseng
dc.subject.ddc620
dc.titleDamage Tolerance Evaluation of E-PBF-Manufactured Inconel 718 Strut Geometries by Advanced Characterization Techniqueseng
dc.typeAufsatz
dcterms.abstractBy means of electron beam powder bed fusion (E-PBF), highly complex lightweight structures can be manufactured within short process times. Due to the increasing complexity of producible components and the entangled interplay of damage mechanisms, common bulk material properties such as ultimate tensile or fatigue strength are not sufficient to guarantee safe and reliable use in demanding applications. Within this work, the damage tolerance of E-PBF-manufactured Ni-based alloy Inconel 718 (IN 718) strut geometries under uniaxial cyclic loading was investigated supported by several advanced measurement techniques. Based on thermal and electrical measurements, the failure of single struts could reliably be detected, revealing that continuous monitoring is applicable for such complex geometries. Process-induced surface roughness was found to be the main reason for early failure during cyclic loading. Thus, adequate post-processing steps have to be established for complex geometries to significantly improve damage tolerance and, eventually, in-service properties.eng
dcterms.accessRightsopen access
dcterms.creatorKotzem, Daniel
dcterms.creatorArold, Tizian
dcterms.creatorNiendorf, Thomas
dcterms.creatorWalther, Frank
dcterms.extent21 Seiten
dc.relation.doidoi:10.3390/ma13010247
dc.subject.swdInconel 718ger
dc.subject.swdSchadenstoleranzger
dc.subject.swdFehlersucheger
dc.subject.swdZyklische Deformationger
dc.subject.swdStoffeigenschaftger
dc.type.versionpublishedVersion
dcterms.source.identifiereissn:1996-1944
dcterms.source.issueIssue 1
dcterms.source.journalMaterialseng
dcterms.source.volumeVolume 13
kup.iskupfalse
dcterms.source.articlenumber247


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