Abstract
Under tribological conditions in aqueous medium, the contact of materials does involve some degradations of materials. Especially friction under small reciprocal displacement, i.e., fretting corrosion, is occurring; this topic has been highlighted since the 80′s regarding hip implants. Hip prosthesis is assembled from three parts: femoral stem, neck and head. Fretting corrosion or friction corrosion between metallic parts first involves some degradation of the oxides layers. This step is governed by mechanics and it is related to some few minutes. Afterwards the corrosion occurrs enhanced by mechanical degradation. As well focused some oxides and some metallic ions are related to biocompatibility issues. Some strategies are available in order to avoid metal against metal friction and/or fretting. Some hard coatings and some smooth coatings were investigated. The first one is diamond-like carbon (DLC), and the second is a polyetheretherketone (PEEK), polymeric one. The investigations were focused on fretting corrosion solicitations of Ti-6Al-4V vs. Ti-6Al-4V + coating. DLC as a coating delays the corrosion degradation. The PEEK coating does not promote any corrosion degradation of the metallic counter part and more generally any wear.
Subject
Surfaces, Coatings and Films,Mechanical Engineering
Reference44 articles.
1. Commission Nationale D’evaluationdes Dispositifs Medicaux et des Technologies de Sante
https://www.has-sante.fr/upload/docs/application/pdf/2014-12/protheses_hanche_dm_eval_65.pdf
2. Does taper angle clearance influence fretting and corrosion damage at the head–stem interface? A matched cohort retrieval study
3. Hip Walking Simulator ISO 14242
https://www.iso.org/standard/67925.html
4. ASTM Standard F1714
https://www.astm.org/Standards/F1714.htm
5. Internal Report Mod Hip Project, Labex Manutech-Sise
https://manutech-sise.universite-lyon.fr/axis-2-/scientific-publications-axis-2-knowledge-based-design-66124.kjsp
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献