Volume 7, Issue 5 (May 2010)

    Phase Change and Mechanical Behaviors of TixCoCrFeNiCu1−yAly High Entropy Alloys

    (Received 19 May 2009; accepted 20 April 2010)

    Published Online: 2010

    CODEN: JAIOAD

      Format Pages Price  
    PDF Version 8 $25   ADD TO CART


    Abstract

    The alloying effects of the Al, Ti, Cu, and Co in a typical TixCoCrFeNiCu1−yAly high entropy alloy (HEA) were systematically studied. The phase change of the HEAs is closely related to the atomic packing efficiency of the phases. The high entropy of the alloy will largely lower the Gibbs free energy when the enthalpy of the alloys are not changed too much, and the high entropy phase can be an equilibrium stable one. The HEAs can have ultrahigh fracture strength at room temperature and high temperature, e.g., yield strength of 1400 MPa at 500°C.


    Author Information:

    Zhang, Y.
    Univ. of Science and Technology Beijing, Beijing,

    Chen, G. L.
    Univ. of Science and Technology Beijing, Beijing,

    Gan, C. L.
    Nanyang Technological Univ., Singapore,


    Stock #: JAI102527

    ISSN: 1546-962X

    DOI: 10.1520/JAI102527

    ASTM International is a member of CrossRef.

    Author
    Title Phase Change and Mechanical Behaviors of TixCoCrFeNiCu1−yAly High Entropy Alloys
    Symposium , 0000-00-00
    Committee