Abstract
The structural and thermodynamic properties of coherent interphase boundaries (IPB’s) have been studied using the Cluster Variation Method. Calculations have been performed for IPB’s in model ordering and phase-separating substitutional alloy systems with fcc-based crystal structures. Special attention has been devoted in this study to an analysis of the effects which temperature and crystallographic orientation have upon the finite-temperature properties of IPB’s. Values of the interfacial excess free energies, i.e. the interphase energies, have been calculated as a function of temperature for IPB’s with {100}, {110} and {111} crystallographic orientations. Additionally, the dependences of the composition, long-range and short-range order parameters on distance within compositionally diffuse interfacial regions have been computed. It will be demonstrated that both the thermodynamic and structural properties of IPB’s can be strongly dependent upon the temperature and the nature of the energetic parameters in the alloy system.
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Asta, M. (1996). Thermodynamic Properties of Coherent Interphase Boundaries in fcc Substitutional Alloys. In: Morán-López, J.L., Sanchez, J.M. (eds) Theory and Applications of the Cluster Variation and Path Probability Methods. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0419-7_15
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DOI: https://doi.org/10.1007/978-1-4613-0419-7_15
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