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Tribological Performance of Additively Manufactured AISI H13 Steel in Different Surface Conditions

dc.date.accessioned2023-08-02T08:41:33Z
dc.date.available2023-08-02T08:41:33Z
dc.date.issued2021-02-16
dc.identifierdoi:10.17170/kobra-202308028558
dc.identifier.urihttp://hdl.handle.net/123456789/14963
dc.language.isoeng
dc.rightsNamensnennung 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjecttribologyeng
dc.subjectadditive manufacturingeng
dc.subjectselective laser meltingeng
dc.subjectsurface roughnesseng
dc.subject.ddc620
dc.titleTribological Performance of Additively Manufactured AISI H13 Steel in Different Surface Conditionseng
dc.typeAufsatz
dcterms.abstractAdditive manufacturing of metallic tribological components offers unprecedented degrees of freedom, but the surface roughness of most as-printed surfaces impedes the direct applicability of such structures, and postprocessing is necessary. Here, the tribological performance of AISI H13 steel samples was studied. These were additively manufactured through laser powder bed fusion (L-PBF), also referred to as selective laser melting (SLM). Samples were tested in four different surface conditions: as-printed, polished, ground and polished, and laser-surface-textured (LST) with round dimples. Friction experiments were conducted in a pin-on-disk fashion against bearing steel disks under lubrication with an additive-free mineral base oil for sliding speeds between 20 and 170 mm/s. Results demonstrated that, among the four surface treatments, grinding and polishing resulted in the lowest friction coefficient, followed by the as-printed state, while both polishing alone and laser-surface texturing increased the friction coefficient. Surprisingly, direct correlation between surface roughness and friction coefficient, i.e., the rougher the surface was, the higher the friction force, was not observed. Wear was minimal in all cases and below what could be detected by gravimetrical means. These results highlight the need for an adequate post-processing treatment of additively manufactured parts that are to be employed in tribological systems.eng
dcterms.accessRightsopen access
dcterms.creatorGuenther, Elisabeth
dcterms.creatorKahlert, Moritz
dcterms.creatorVollmer, Malte
dcterms.creatorNiendorf, Thomas
dcterms.creatorGreiner, Christian
dcterms.extent10 Seiten
dc.relation.doidoi:10.3390/ma14040928
dc.subject.swdTribologieger
dc.subject.swdRapid Prototyping <Fertigung>ger
dc.subject.swdSelektives Laserschmelzenger
dc.subject.swdRauigkeitger
dc.type.versionpublishedVersion
dcterms.source.identifiereissn:1996-1944
dcterms.source.issueIssue 4
dcterms.source.journalMaterialseng
dcterms.source.volumeVolume 14
kup.iskupfalse
dcterms.source.articlenumber928


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Namensnennung 4.0 International
Except where otherwise noted, this item's license is described as Namensnennung 4.0 International