Fatigue and wear evaluation of Ti-Al-Nb alloys for biomedical applications

C. J. Boehlert, C. J. Cowen, J. P. Quast, T. Akahori, M. Niinomi

    Research output: Research - peer-reviewArticle

    • 18 Citations

    Abstract

    In this work the fatigue and wear behavior of Ti-15Al-33Nb(at.%) and Ti-21Al-29Nb(at.%) was evaluated and compared to that for other titanium-based biomedical implant alloys, in particular Ti-6Al-4V(wt.%). Fatigue stress versus life curves were obtained for tests performed at room temperature in air at a stress ratio of R = 0.1 for maximum stresses between 75%-90% of the ultimate tensile strength. The results indicated that the fatigue strength and lives of the as-processed alloys are comparable to that for Ti-6Al-4V(wt.%). Heat treatment significantly increased the orthorhombic-phase volume fractions in the alloys and resulted in reduced fatigue strength. The wear resistance for the alloys was significantly greater than that for Ti-6Al-4V(wt.%). Based on the current results, it is proposed that titanium-aluminum-niobium alloys will be of considerable future interest for biomedical applications.

    LanguageEnglish (US)
    Pages323-330
    Number of pages8
    JournalMaterials Science and Engineering C
    Volume28
    Issue number3
    DOIs
    StatePublished - Apr 1 2008

    Profile

    Wear of materials
    Fatigue of materials
    titanium-niobium-aluminum alloy
    evaluation
    Fatigue strength
    Titanium
    titanium
    Wear resistance
    Volume fraction
    Tensile strength
    Heat treatment
    Air
    Temperature
    Niobium alloys
    Aluminum alloys
    niobium alloys
    stress ratio
    wear resistance
    aluminum alloys
    tensile strength

    Keywords

    • Biocompatibility
    • Fatigue
    • Hardness
    • Titanium
    • Wear

    ASJC Scopus subject areas

    • Biomaterials

    Cite this

    Fatigue and wear evaluation of Ti-Al-Nb alloys for biomedical applications. / Boehlert, C. J.; Cowen, C. J.; Quast, J. P.; Akahori, T.; Niinomi, M.

    In: Materials Science and Engineering C, Vol. 28, No. 3, 01.04.2008, p. 323-330.

    Research output: Research - peer-reviewArticle

    Boehlert, C. J. ; Cowen, C. J. ; Quast, J. P. ; Akahori, T. ; Niinomi, M./ Fatigue and wear evaluation of Ti-Al-Nb alloys for biomedical applications. In: Materials Science and Engineering C. 2008 ; Vol. 28, No. 3. pp. 323-330
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    AU - Niinomi,M.

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