Abstract
The free energies of the equilibrium and metastable amorphous CrZr phases are calculated by a least-squares fitting program from the thermodynamic data available for the system. The free energies of the liquid phase and the intermetallic compounds are determined from the phase diagram as well as from measurements of the heats of mixing and formation respectively. The metallic glass in treated thermodynamically as an undercooled liquid. However, in order to calculate its free energy at low temperatures, measurements of the partial free energy in the metastable state and the enthalpy difference between the amorphous and the equilibrium phase(s) are required. The results are applied to a discussion of the solid state amorphization reaction. For example, the concentration range of amorphous phase formation can be determined by applying the T 0 concept or by assuming a metastable equilibrium with the solid solution of the components.
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