STP1272

    Effects of Material Combination, Surface Treatment, and Environment on Fretting Corrosion of Ti 6Al 4V

    Published: Jan 1996


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    Abstract

    Examination of retrieved orthopedic implants has identified fretting corrosion as one of the principal mechanisms of implant corrosion. Fretting may contribute to corrosion and metal ion and particle release directly, or may contribute to the initiation of crevice corrosion. A series of experiments have been conducted, as per F897. When fretting against itself, Ti 6Al 4V tends to gall and show high fretting corrosion rates. In mixed metal combinations with stainless steel or cobalt alloy, fretting corrosion of titanium is significantly reduced. Similarly, nitriding one or both faces reduces corrosion. The addition of serum proteins to a saline solution tends to increase the fretting corrosion rates. Fretting in cell culture growth media is higher in those media containing higher calcium ion concentrations or containing hydrogen peroxide.

    Keywords:

    fretting corrosion, Ti 6Al 4V, mixed metal, environment


    Author Information:

    Brown, SA
    Associate Professors, Case Western Reserve UniversityFDA/CDRH/OST, ClevelandRockville, OHMD

    Kawalec, JS
    Graduate student and student, Case Western Reserve University, Cleveland, OH

    Montague, AC
    Graduate student and student, Case Western Reserve University, Cleveland, OH

    Merritt, K
    Associate Professors, Case Western Reserve UniversityFDA/CDRH/OST, ClevelandRockville, OHMD

    Payer, JH
    Professor, Case Western Reserve University, Cleveland, OH


    Paper ID: STP16082S

    Committee/Subcommittee: F04.19

    DOI: 10.1520/STP16082S


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