{"title":"Wear mechanisms and particle generation in ultrahigh molecular weight polyethylene","authors":"J. Lankford, C. Blanchard, C. M. Agrawal","doi":"10.1109/SBEC.1995.514499","DOIUrl":null,"url":null,"abstract":"The effect of varying the initial surface roughness of ultrahigh molecular weight polyethylene (UHMWPE) tested in reciprocating wear against CoCr pins in bovine serum is investigated. It is found that wear occurs in two distinct stages that appear and disappear cyclically. The low wear phase corresponds to the development of surface deformation features that degenerate into a high amplitude wavelike topography. The features wear by fibrillar pullout and microfracture, producing submicrometer particulate debris.","PeriodicalId":332563,"journal":{"name":"Proceedings of the 1995 Fourteenth Southern Biomedical Engineering Conference","volume":"36 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1995-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 1995 Fourteenth Southern Biomedical Engineering Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SBEC.1995.514499","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
The effect of varying the initial surface roughness of ultrahigh molecular weight polyethylene (UHMWPE) tested in reciprocating wear against CoCr pins in bovine serum is investigated. It is found that wear occurs in two distinct stages that appear and disappear cyclically. The low wear phase corresponds to the development of surface deformation features that degenerate into a high amplitude wavelike topography. The features wear by fibrillar pullout and microfracture, producing submicrometer particulate debris.