Three different proportions of TA15 and Ti2AlNb alloy powde were premixed and thin-walls with proportions of 40%TA15+60%Ti2AlNb, 50%TA15 +50% Ti2AlNb and 60%TA15+40%Ti2AlNb (mass fraction) were prepared by using laser melting deposition process. The composition, microstructure and mechanical properties of the three thin-walls were analyzed. The results indicate that the compositions of all the three kinds of alloys are uniform. The alloy appears as basketweave microstructure with acicular α phase and α2 phase distributing within primary β/B2 grain. Tensile strength of the three kinds of alloys are 1108 MPa and 1071 MPa, 1105 MPa, and elongation are 3.0%, 2.2% and 3.8% respectively; Tear ridge along α2 phases is visible on tensile fracture surface, and the fracture mode is subject to cleavage fracture.


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    Title :

    Microstructure and Mechanical Properties of Laser Melting Deposited TA15+Ti2AlNb Alloys


    Contributors:
    LIU Yantao (author) / ZHANG Yongzhong (author) / CHEN Yiqiang (author) / TANG Yangjie (author)


    Publication date :

    2017




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




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