The out-of-phase thermomechanical fatigue behavior of Ultra SCS-6/Ti-24Al-17Nb-xMo (at.%) metal matrix composites

J. P. Quast, C. J. Boehlert

    Research output: Contribution to journalArticle

    • 2 Citations

    Abstract

    The out-of-phase thermomechanical fatigue behavior of Ultra SCS-6/Ti-24Al-17Nb-2.3Mo (at.%), Ultra SCS-6/Ti-24Al-17Nb-1.1Mo (at.%), and Ultra SCS-6/Ti-24Al-17Nb-0.6Mo (at.%) continuously-reinforced metal matrix composites (MMCs) was investigated in order to understand the effect of Mo on the microstructure and fatigue behavior of titanium-alloy-matrix composites. From the recorded stress versus cycle behavior, two failure regimes were noted. For the highest stresses examined, fatigue-dominated failure occurred. For the lowest stresses examined, a creep-dominated failure occurred. The Ultra SCS-6/Ti-24Al-17Nb-1.1Mo MMC exhibited the shortest fatigue lives for all the applied stress levels examined. The Ultra SCS-6/Ti-24Al-17Nb-2.3Mo MMC exhibited the longest fatigue lives for the lowest applied stress levels, and the Ultra SCS-6/Ti-24Al-17Nb-0.66Mo MMC exhibited the longest fatigue lives for most of the higher applied stress levels.

    Original languageEnglish (US)
    Pages (from-to)610-620
    Number of pages11
    JournalInternational Journal of Fatigue
    Volume32
    Issue number3
    DOIs
    StatePublished - Mar 2010

    Profile

    Endometrial Hyperplasia
    Fatigue of materials
    Enzyme Reactivators
    Addison Disease
    Composite materials
    Metal matrix composites
    Metals
    Fatigue
    Fatigue life
    Lowest
    Acriflavine
    Titanium alloy
    Creep
    Microstructure
    Composite
    Cycle
    Titanium alloys

    Keywords

    • Composites
    • Intermetallics
    • Microstructures
    • Thermomechanical fatigue
    • Titanium alloys

    ASJC Scopus subject areas

    • Industrial and Manufacturing Engineering
    • Mechanical Engineering
    • Mechanics of Materials
    • Materials Science(all)
    • Modeling and Simulation

    Cite this

    The out-of-phase thermomechanical fatigue behavior of Ultra SCS-6/Ti-24Al-17Nb-xMo (at.%) metal matrix composites. / Quast, J. P.; Boehlert, C. J.

    In: International Journal of Fatigue, Vol. 32, No. 3, 03.2010, p. 610-620.

    Research output: Contribution to journalArticle

    Quast, J. P.; Boehlert, C. J. / The out-of-phase thermomechanical fatigue behavior of Ultra SCS-6/Ti-24Al-17Nb-xMo (at.%) metal matrix composites.

    In: International Journal of Fatigue, Vol. 32, No. 3, 03.2010, p. 610-620.

    Research output: Contribution to journalArticle

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    abstract = "The out-of-phase thermomechanical fatigue behavior of Ultra SCS-6/Ti-24Al-17Nb-2.3Mo (at.%), Ultra SCS-6/Ti-24Al-17Nb-1.1Mo (at.%), and Ultra SCS-6/Ti-24Al-17Nb-0.6Mo (at.%) continuously-reinforced metal matrix composites (MMCs) was investigated in order to understand the effect of Mo on the microstructure and fatigue behavior of titanium-alloy-matrix composites. From the recorded stress versus cycle behavior, two failure regimes were noted. For the highest stresses examined, fatigue-dominated failure occurred. For the lowest stresses examined, a creep-dominated failure occurred. The Ultra SCS-6/Ti-24Al-17Nb-1.1Mo MMC exhibited the shortest fatigue lives for all the applied stress levels examined. The Ultra SCS-6/Ti-24Al-17Nb-2.3Mo MMC exhibited the longest fatigue lives for the lowest applied stress levels, and the Ultra SCS-6/Ti-24Al-17Nb-0.66Mo MMC exhibited the longest fatigue lives for most of the higher applied stress levels.",
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