The microstructure and creep behavior of a boron-modified Ti-15Al-33Nb (at%) alloy

C. J. Cowen, C. J. Boehlert

    Research output: Research - peer-reviewArticle

    • 3 Citations

    Abstract

    The affect of boron (B) on the microstructure and creep behavior of a Ti-15Al-33Nb (at%) alloy was investigated. In addition to the normal constituent phases present in the monolithic alloy, the B-modified alloy contained borides enriched in titanium and niobium. These borides were present in the form of needles/laths up to 50 μm long and 10 μm wide which took up 5-9% of the volume. Constant load, tensile-creep experiments were performed in the stress range of 150-340 MPa and the temperature range of 650-710°C, in both air and vacuum environments. An addition of 0.5 at% B did not improve the creep resistance of the monolithic alloy, while the addition of 5 at% B significantly improved the creep resistance.

    LanguageEnglish (US)
    Pages976-981
    Number of pages6
    JournalAdvanced Materials Research
    Volume15-17
    StatePublished - 2007

    Profile

    Boron
    Creep
    Microstructure
    Creep resistance
    Borides
    Niobium
    Needles
    Loads (forces)
    Titanium
    Vacuum
    Air
    Experiments
    Temperature

    Keywords

    • Boron
    • Creep
    • Microstructure
    • Titanium alloy

    ASJC Scopus subject areas

    • Engineering(all)

    Cite this

    The microstructure and creep behavior of a boron-modified Ti-15Al-33Nb (at%) alloy. / Cowen, C. J.; Boehlert, C. J.

    In: Advanced Materials Research, Vol. 15-17, 2007, p. 976-981.

    Research output: Research - peer-reviewArticle

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