Compatibility of Lattice Stabilities Derived by Thermochemical and First Principles

  • A. P. Miodownik

Abstract

Complex phase equilibria can now be routinely calculated in multicomponent commercial alloys,1 a development that can be traced to the single minded application of the concept of lattice stabilities by Kaufman.2 At that time such quantities were viewed with considerable suspicion, and could certainly not be calculated with any degree of confidence. Titanium was historically one of the first elements investigated, since this element exhibits an allotropic transformation and experimental data could therefore be obtained for both phases. The expressions used to define the phase stability included Debye temperature and electronic specific heat terms as well as the lattice stability at zero K.

Keywords

Entropy Titanium Nickel Enthalpy Martensite 

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Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • A. P. Miodownik
    • 1
  1. 1.Department of Materials Science and EngineeringUniversity of SurreyGuilford, SurreyEngland

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