In-vitro fretting corrosion testing of modular hip implants

J. R. Goldberg, J. J. Jacobs, J. L. Gilbert

Research output: Contribution to conferencePaper

1 Scopus citations

Abstract

The fretting behavior of similar metal (CoCrMo/CoCrMo) modular taper components and the electrochemical changes caused by corrosion were investigated. Changes in the solution chemistry (pH, pO2, and [Cl-]) were observed even in the absence of mechanical loads. The load at the onset of fretting indicates that the load required to initiate oxide fracture as well as the relative resistance of a surface to fretting corrosion. Measurement of fretting currents indicates the degree of metal ion and particulate debris generation for a particular taper design. The test method used in the study can be used to evaluate the effect of taper materials, geometry, and surface modifications on the fretting corrosion of modular tapers.

Original languageEnglish (US)
Number of pages1
StatePublished - Dec 1 1996
EventProceedings of the 1996 5th World Biomaterials Congress. Part 2 (of 2) - Toronto, Can
Duration: May 29 1996Jun 2 1996

Other

OtherProceedings of the 1996 5th World Biomaterials Congress. Part 2 (of 2)
CityToronto, Can
Period5/29/966/2/96

ASJC Scopus subject areas

  • Materials Science(all)

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  • Cite this

    Goldberg, J. R., Jacobs, J. J., & Gilbert, J. L. (1996). In-vitro fretting corrosion testing of modular hip implants. Paper presented at Proceedings of the 1996 5th World Biomaterials Congress. Part 2 (of 2), Toronto, Can, .