• Calculated elastic constants of dilute alloys based on bcc metals

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    • Keywords


      Green’s function; t-matrix; force constant changes

    • Abstract


      The elastic constants of dilute alloys based on bcc metals have been calculated using the Green’s function method obtaining explicit expressions for change in elastic constants in terms oft-matrix. The crystal impurity problem is discussed within an impurity model containing central and non-central force constant changes extended up to second neighbours of the impurity. The effect of volume change on elastic constants and a contribution from electron pressure term are considered. Numerical results for changes in three elastic moduli have been presented for a number of dilute alloys based on Mo, Nb, W, Ta and V.

    • Author Affiliations


      P D Semalty1 P N Ram1 2

      1. Department of Physics, H N B Garhwal University, Srinagar, Garhwal - 246 174, India
      2. Department of Physics, North-Eastern Hill University, Shillong - 793 003, India
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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