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Titre: Tribological behavior of biomedical grade UHMWPE with graphite-based fillers against EBM-Ti6Al4V pin under various lubricating conditions
Auteur(s): Belhamdi, Hossem
Kouini, Benalia
Grasso, Antonio
Scolaro, Cristina
Sili, Andrea
Visco, Annamaria
Mots-clés: EBM-Ti6Al4V
lubrication
prosthetic implant
UHMWPE
wear behaviour
Date de publication: 2022
Editeur: John Wiley and Sons Inc
Collection/Numéro: Journal of Applied Polymer Science/ Vol.139, N°23 (2022);pp. 1-13
Résumé: In this work, the wear behavior of the mechanical coupling between the biomedical polymer ultrahigh molecular weight polyethylene (UHMWPE) and the titanium–aluminum–vanadium alloy pin (Ti4Al6V) manufactured by electron beam melting (EBM) is investigated. Pure and oxidized graphite fillers is added to the UHMWPE matrix to boost the wear resistance. The tribological test is performed in dry and under the action of various lubricating media (distilled water [DW], simulated synovial fluid [SSF], and natural bovine serum [NBS]) in order to investigate their effects on wearing. The physical–mechanical characterization results show a progressive increase in wear resistance of more than 60% in the nanocomposite (UHMWPE/GO) with the addition of paraffin oil (PO) compared to the UHMWPE and higher under NBS lubricant (more than 80%). The observed wear action is reduced in the order Dry > DW > SSF ≥ NBS, thereby lowering the debris production
URI/URL: https://doi.org/10.1002/app.52313
https://onlinelibrary.wiley.com/doi/full/10.1002/app.52313
http://dlibrary.univ-boumerdes.dz:8080/handle/123456789/10370
ISSN: 00218995
Collection(s) :Publications Internationales

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