Microstructure, tensile, and creep behavior of Ti-15Al-33Nb (at%) and Ti-21Al-29Nb (at%) orthorhombic+BCC alloys

C. J. Cowen, C. J. Boehlert

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    In this work the creep and elevated temperature tensile behavior of two orthorhombic (O)+body-centered-cubic (BCC) alloys, specifically Ti-15Al-33Nb(at%) and Ti-21Al-29Nb (at%), were evaluated in order to determine the effect of alloy composition and microstructure on the mechanical properties and deformation behavior. Tensile tests, performed at RT and 650°C, indicated that the Ti-21Al-29Nb alloy exhibited significantly lower elongation-to-failure values than the Ti-15Al-33Nb alloy. Heat-treatments used to precipitate greater volume fractions of the O-phase resulted in greater strength levels, while the BCC phase provided ductility. The measured creep stress exponents (1.1

    Original languageEnglish (US)
    Title of host publicationTMS Annual Meeting
    Pages93-103
    Number of pages11
    Volume2006
    StatePublished - 2006
    Event135th TMS Annual Meeting, 2006 - San Antonio, TX, United States

    Other

    Other135th TMS Annual Meeting, 2006
    CountryUnited States
    CitySan Antonio, TX
    Period3/12/063/16/06

    Profile

    Creep
    creep
    Microstructure
    microstructure
    Acetanilides
    African horse sickness virus
    Iduronidase
    Acriflavine
    Learned Helplessness
    Carbamyl Phosphate
    Abdominal Muscles
    Addison Disease
    Ductility
    Precipitates
    Heat treatment
    Elongation
    Volume fraction
    Mechanical properties
    Chemical analysis
    Temperature

    Keywords

    • Creep
    • Microstructure
    • Tension
    • Titanium alloys

    ASJC Scopus subject areas

    • Geology
    • Metals and Alloys

    Cite this

    Microstructure, tensile, and creep behavior of Ti-15Al-33Nb (at%) and Ti-21Al-29Nb (at%) orthorhombic+BCC alloys. / Cowen, C. J.; Boehlert, C. J.

    TMS Annual Meeting. Vol. 2006 2006. p. 93-103.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Cowen, CJ & Boehlert, CJ 2006, Microstructure, tensile, and creep behavior of Ti-15Al-33Nb (at%) and Ti-21Al-29Nb (at%) orthorhombic+BCC alloys. in TMS Annual Meeting. vol. 2006, pp. 93-103, 135th TMS Annual Meeting, 2006, San Antonio, TX, United States, 12-16 March.

    Cowen, C. J.; Boehlert, C. J. / Microstructure, tensile, and creep behavior of Ti-15Al-33Nb (at%) and Ti-21Al-29Nb (at%) orthorhombic+BCC alloys.

    TMS Annual Meeting. Vol. 2006 2006. p. 93-103.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

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