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Ursula Kattner
Bill Boettinger
Dilip Banerjee
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Lever Rule Solidification
The calculation of the equilibrium solidification according to the lever
rule is a one dimensional stepping calculation in which one of the variables,
the temperature, is stepped. At each step a single point equilibrium
calculation is carried out. The result of the calculation gives phase
compositions, phase fractions and enthalpies. Since complete diffusion
is assumed for all phases, the calculation may be continued after the liquid
phase has disappeared to determine changes in the solid phases.
Examples for the lever rule paths of Ni-Al-Ta and Sn-Bi-Pb alloys
are shown.
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