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Effects of Aging under Stress on Mechanical Properties and Microstructure of EN AW 7075 Alloy

dc.date.accessioned2023-04-24T09:41:38Z
dc.date.available2023-04-24T09:41:38Z
dc.date.issued2021-07-20
dc.identifierdoi:10.17170/kobra-202304247886
dc.identifier.urihttp://hdl.handle.net/123456789/14623
dc.language.isoeng
dc.rightsNamensnennung 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjecthigh strength aluminum alloyeng
dc.subjectstress-agingeng
dc.subjectDSCeng
dc.subjectheat treatmenteng
dc.subjectthermo-mechanical treatmenteng
dc.subject.ddc670
dc.titleEffects of Aging under Stress on Mechanical Properties and Microstructure of EN AW 7075 Alloyeng
dc.typeAufsatz
dcterms.abstractIn the present study, microstructural and mechanical properties of EN AW 7075 following stress-aging were assessed. For this purpose, properties of stress-aged samples were compared with values obtained for conventionally aged counterparts. It is revealed that the strength and hardness of EN AW 7075 can be increased by the presence of external stresses during aging. Precipitation kinetics were found to be accelerated. The effects of conventional and stress-aging on the microstructure were analyzed using synergetic techniques: the differently aged samples were probed by differential scanning calorimetry (DSC) in order to characterize the precipitation processes. DSC was found to be an excellent screening tool for the analysis of precipitation processes during aging of this alloy with and without the presence of external stresses. Furthermore, using electron microscopy it was revealed that an improvement in mechanical properties can be correlated to changes in the morphologies and sizes of precipitates formed.eng
dcterms.accessRightsopen access
dcterms.creatorSajadifar, Seyed Vahid
dcterms.creatorKrooß, Philipp
dcterms.creatorFröck, Hannes
dcterms.creatorMilkereit, Benjamin
dcterms.creatorKessler, Olaf
dcterms.creatorNiendorf, Thomas
dcterms.extent15 Seiten
dc.relation.doidoi:10.3390/met11071142
dc.subject.swdSpannungsfreiglühenger
dc.subject.swdDifferential scanning calorimetryger
dc.subject.swdWärmebehandlungger
dc.subject.swdAluminiumlegierungger
dc.type.versionpublishedVersion
dcterms.source.identifiereissn:2075-4701
dcterms.source.issueIssue 7
dcterms.source.journalMetalseng
dcterms.source.volumeVolume 11
kup.iskupfalse
dcterms.source.articlenumber1142


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