Volume 2, Issue 6 (June 2005)

    Super Elastic Functional β Titanium Alloy with Low Young's Modulus for Biomedical Applications

    (Received 14 June 2004; accepted 24 November 2004)

    Published Online: 2005

    CODEN: JAIOAD

      Format Pages Price  
    PDF Version 16 $25   ADD TO CART


    Abstract

    The low modulus β type titanium alloy, Ti-29Nb-13Ta-4.6Zr, was designed, and then the practical level ingot of the alloy was successfully fabricated by Levicast method. The mechanical and biological compatibilities, and super elastic behavior of the alloys were investigated in this study. The mechanical performance of tensile properties and fatigue strength of the alloy are equal to or greater than those of conventional biomedical Ti-6Al-4V ELI. Young's modulus of the alloy is much lower than that of Ti-6Al-4V ELI, and increases with the precipitation of α phase or ω phase in the β matrix phase. The compatibility of the alloy with bone is excellent. Low modulus of the alloy is effective to enhance the healing of bone fracture and remodeling of bone. Super elastic behavior is observed in Ti-29Nb-13Ta-4.6Zr conducted with short time solution treatment after heavy cold working. Total elastic strain in that case is around 2.8 %. The mechanism of the super elastic behavior of Ti-29Nb-13Ta-4.6Zr is still unclear.


    Author Information:

    Niinomi, M
    Professor, Toyohashi University of Technology, Toyohashi,

    Akahori, T
    Research Associate, Toyohashi University of Technology, Toyohashi,

    Hattori, Y
    Meijo University Aichi, Nagoya,

    Morikaw, K
    Research Assistant, Aichi Medical University, Nagakute, Aichi,

    Kasuga, T
    Professor, Nagoya Institute of Technology, Nagoya,

    Fukui, H
    Professor, School of Dentistry, Aichi-Gakuin University, Nagoya,

    Suzuki, A
    Vice Manager, R & D Laboratory, Daido Steel Co., Ltd., Nagoya,

    Kyo, K
    Technical Scientist, Surface Characterization Division, The Institute of Physical and Chemical Research, Saitama,

    Niwa, S
    Professor Emeritus, Aichi Medical University, Nagakute, Aichi,


    Stock #: JAI12818

    ISSN: 1546-962X

    DOI: 10.1520/JAI12818

    ASTM International is a member of CrossRef.

    Author
    Title Super Elastic Functional β Titanium Alloy with Low Young's Modulus for Biomedical Applications
    Symposium Titanium, Niobium, Zirconium, and Tantalum for Medical and Surgical Applications, 2004-11-10
    Committee F04