Authors: Mischler, S.¹; Barril, S.²; Landolt, D.²

Source: Tribology - Materials, Surfaces & Interfaces, Volume 3, Number 1, March 2009 , pp. 16-23(8)

Publisher: Maney Publishing

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• Surfaces

Abstract:

The fretting corrosion of a Ti–6Al–4V flat in contact with a poly(methyl methacrylate) (PMMA) ball in 0ˇ9 wt-% NaCl solution was investigated using a fretting rig operating under electrochemical control. The effect of potential and of normal load on friction, wear and electrochemical response was studied under gross slip regime. No noticeable mechanical deterioration of the Ti–6Al–4V surface could be observed. At anodic potential, alloy corrosion was only slightly enhanced by fretting. Wear of PMMA was large and controlled by third body formation. A correlation between PMMA wear coefficient and thickness of third body was observed.

Keywords: WEAR; BIOTRIBOLOGY; THIRD BODY; TRIBOLOGY; IMPLANT; TRIBOCORROSION

Document Type: Research Article

DOI: http://dx.doi.org/10.1179/175158309X408333

Affiliations: 1: Ecole Polytechnique Fédérale de Lausanne EPFL, Laboratory for Metallurgical Chemistry LMCH, CH 1015 Lausanne, Switzerland;, Email: Stefano.mischler@epfl.ch 2: Ecole Polytechnique Fédérale de Lausanne EPFL, Laboratory for Metallurgical Chemistry LMCH, CH 1015 Lausanne, Switzerland

Publication date: 2009-03-01

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