Publication:
Densification of nanoporous metals during nanoindentation: The role of structural and mechanical properties

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datacite.resourceTypeJournal Articleen_US
datacite.resourceTypeGeneralJournalArticleen_US
dc.contributor.authorHuber, Norbert
dc.contributor.authorRyl, Ilona
dc.contributor.authorWu, Theodore Yao-tsu
dc.contributor.authorHablitzel, Murilo P.
dc.contributor.authorZandersons, Birthe
dc.contributor.authorRichert, Claudia
dc.contributor.authorLilleodden, Erica
dc.date.accessioned2023-01-23T13:58:19Z
dc.date.available2023-01-23T13:58:19Z
dc.date.issued2023
dc.description.abstractThe analysis of the densification behavior of nanoporous metals in nanoindentation is challenging in simulations and experiments. A deeper understanding of the densification behavior provides valuable information about the different deformation mechanisms in nanoindentation and compression experiments. The developed two-scale model allows for predicting the densification field for variable microstructure and elastic–plastic behavior. It could be shown that the penetration depth of the densification field is mainly controlled by the ratio of the macroscopic work hardening rate to yield stress. The shape as well as the value at characteristic isolines of densification depend mainly on the macroscopic plastic response of the nanoporous material. This could be confirmed by nanoindentation experiments, where the densification under the indenter was measured for ligament sizes from 35 to 150 nm. Although the depth of the densification field was underpredicted by the simulations, the experiments confirmed the predicted trends. Graphical abstract: [Figure not available: see fulltext.]en
dc.identifier.citationJournal of Materials Research 38: 853-866 (2023)de_DE
dc.identifier.doi10.15480/882.4969
dc.identifier.scopus2-s2.0-85145554732de_DE
dc.identifier.urihttp://hdl.handle.net/11420/14611
dc.language.isoende_DE
dc.relation.fundingSFB 986: Teilprojekt B04 - Mikromechanisches Materialverhalten hierarchischer Werkstoffede_DE
dc.relation.fundingSFB 986: Teilprojekt B08 - Mikromechanisch-elektrochemische Kopplung von nanostrukturierten Festkörpern beschichtet mit leitfähigem Polymerde_DE
dc.relation.fundingSFB 986: Teilprojekt B02 - Feste und leichte Hybridwerkstoffe auf Basis nanoporöser Metallede_DE
dc.relation.ispartofJournal of materials researchde_DE
dc.relation.issn0884-2914de_DE
dc.rightsCC BY 4.0de_DE
dc.rights.nationallicensefalsede_DE
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/de_DE
dc.subjectDensificationde_DE
dc.subjectFinite element simulationde_DE
dc.subjectImage processingde_DE
dc.subjectNanoindentationde_DE
dc.subjectNanoporous metalde_DE
dc.subject.ddc600: Technikde_DE
dc.titleDensification of nanoporous metals during nanoindentation: The role of structural and mechanical propertiesde_DE
dc.typeJournal Articlede_DE
dc.type.casraiJournal Articleen_US
dc.type.diniOtheren_US
dc.type.driverOtheren_US
dcterms.DCMITypeOtheren_US
dspace.entity.typePublication
local.status.inpressfalsede_DE
local.type.legacyArticle
oaire.citation.endPage866de_DE
oaire.citation.startPage853de_DE
oaire.citation.volume38de_DE
oairecerif.author.affiliationWerkstoffphysik und -technologie M-22
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oairecerif.author.affiliationWerkstoffphysik und -technologie M-22
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oairecerif.author.affiliationKeramische Hochleistungswerkstoffe M-9
tuhh.abstract.englishThe analysis of the densification behavior of nanoporous metals in nanoindentation is challenging in simulations and experiments. A deeper understanding of the densification behavior provides valuable information about the different deformation mechanisms in nanoindentation and compression experiments. The developed two-scale model allows for predicting the densification field for variable microstructure and elastic–plastic behavior. It could be shown that the penetration depth of the densification field is mainly controlled by the ratio of the macroscopic work hardening rate to yield stress. The shape as well as the value at characteristic isolines of densification depend mainly on the macroscopic plastic response of the nanoporous material. This could be confirmed by nanoindentation experiments, where the densification under the indenter was measured for ligament sizes from 35 to 150 nm. Although the depth of the densification field was underpredicted by the simulations, the experiments confirmed the predicted trends.de_DE
tuhh.identifier.doi10.15480/882.4969
tuhh.identifier.urnurn:nbn:de:gbv:830-882.0209124
tuhh.oai.showtruede_DE
tuhh.publication.instituteKeramische Hochleistungswerkstoffe M-9de_DE
tuhh.publication.instituteWerkstoffphysik und -technologie M-22de_DE
tuhh.publisher.doi10.1557/s43578-022-00870-1
tuhh.type.opusOtheren_US

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