In the aerospace industry, 80-90% of the titanium used in airframes has been from Ti-6Al-4V. This alloy is used throughout the section of an aircraft - fuselage, nacelles, landing gear, wing and empennage. In gas turbine engines Ti-6Al-4V is used in static and rotating components. Castings are used for the manufacture of more complex static components; forgings are typically used for moving parts. Conventional methods for obtaining titanium alloys require special conditions of controlled atmosphere that culminates in a high production cost. In this paper it was investigated the peculiarities of the typical microstructure of Ti-6Al-4V produced by powder metallurgy using TiH₂ powder. Samples were produced from the initial mixture of Al, V and TiH₂ powders, followed by cold uniaxial and isostatic pressing with subsequent densification by sintering in temperatures between 800-1400°C, in vacuum. Sintered samples were characterized by means of x-ray diffraction, Vickers micro hardness, scanning electron microscopy and density analysis. Due to the complete dissolution of the alloying elements in the titanium matrix and the presence of hydrogen during the sintering stage, an improved combination of homogenous microstructure, densification and mechanical properties could be achieved.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Microstructural Study of Ti-6Al-4V Produced with TiH2 Powder


    Additional title:

    Sae Technical Papers



    Conference:

    21st SAE Brasil International Congress and Exhibition ; 2012



    Publication date :

    2012-10-02




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    MICROSTRUCTURAL STUDY OF Ti-6Al-4V PRODUCED WITH TiH2 POWDER

    Do Nascimento Filho, E. / De Oliveira, J.L. / Henriques, V.R. et al. | British Library Conference Proceedings | 2012


    Truck synchronizer rings produced by powder forging

    Weber, M. / Albano-Mueller, L. / Huppmann, W.J. | Tema Archive | 1986


    Truck Synchronizer Rings Produced by Powder Forging

    Albano-Müller, L. / Weber, M. / Huppmann, W. J. | SAE Technical Papers | 1986


    Truck synchronizer rings produced by powder forging

    Weber, M. / Albano-Mueller, L. / Huppmann, W.J. | Tema Archive | 1986


    Microstructural study of automobile components

    Siddiqi, S.A. / Iftakhar, F. / Farooq, T. | Tema Archive | 1992