Effect of contact area on the wear of ultrahigh molecular weight polyethylene in noncyclic pin-on-disk tests

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorSaikko, Vesa
dc.contributor.departmentDepartment of Mechanical Engineering
dc.date.accessioned2017-05-31T06:03:46Z
dc.date.available2017-05-31T06:03:46Z
dc.date.embargoinfo:eu-repo/date/embargoEnd/2019-04-18
dc.date.issued2017-10-01
dc.description.abstractThe 16-station RandomPOD pin-on-disk device with non-cyclic biaxial motion and load was used to study the effect of contact area on the wear of ultrahigh molecular weight polyethylene as used in total hip prostheses. The counterface was polished CoCr and the lubricant was diluted serum. The wear factor increased strongly and linearly with increasing contact area, which was in agreement with clinical findings for total hip prostheses. The coefficient of friction also increased strongly with increasing contact area. With small contact area the lumpy topography of the worn surface differed from the burnished appearance typical of retrieved acetabular cups. The nominal contact pressure should be kept below 2 MPa in pin-on-disk tests intended to simulate clinical wear mechanisms.en
dc.description.versionPeer revieweden
dc.format.extent4
dc.format.extent84-87
dc.format.mimetypeapplication/pdf
dc.identifier.citationSaikko , V 2017 , ' Effect of contact area on the wear of ultrahigh molecular weight polyethylene in noncyclic pin-on-disk tests ' , Tribology International , vol. 114 , pp. 84-87 . https://doi.org/10.1016/j.triboint.2017.04.020en
dc.identifier.doi10.1016/j.triboint.2017.04.020
dc.identifier.issn0301-679X
dc.identifier.issn1879-2464
dc.identifier.otherPURE UUID: 98b8ddf7-575e-48a5-bf2d-acf7879d4de2
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/98b8ddf7-575e-48a5-bf2d-acf7879d4de2
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85017547383&partnerID=8YFLogxK
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/13307263/A1_saikko_vesa_2017_3.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/26527
dc.identifier.urnURN:NBN:fi:aalto-201705315142
dc.language.isoenen
dc.relation.ispartofseriesTribology Internationalen
dc.relation.ispartofseriesVolume 114en
dc.rightsopenAccessen
dc.subject.keywordBiotribology
dc.subject.keywordNoncyclic pin-on-disk
dc.subject.keywordProsthetic joint
dc.subject.keywordUHMWPE
dc.titleEffect of contact area on the wear of ultrahigh molecular weight polyethylene in noncyclic pin-on-disk testsen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
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