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Meeting Materials Science & Technology 2017
Symposium Phase Stability, Diffusion Kinetics, and Their Applications (PSDK-XII)
Presentation Title Scheil-Gulliver Constituent Diagrams
Author(s) Arthur D. Pelton, Gunnar Eriksson, Christopher W. Bale
On-Site Speaker (Planned) Arthur D. Pelton
Abstract Scope During solidification of alloys, conditions often approach those of Scheil-Gulliver cooling in which it is assumed that solid phases, once precipitated, remain unchanged. That is, they no longer react with the liquid or with each other. In the case of equilibrium solidification, equilibrium phase diagrams provide a valuable means of visualizing the effects of composition changes upon the final microstructure. In the present study we propose for the first time the concept of Scheil-Gulliver constituent diagrams which play the same role in the case of Scheil-Gulliver cooling. It is shown how these diagrams can be calculated and plotted by currently available thermodynamic database computing systems that combine Gibbs energy minimization software with large databases of optimized thermodynamic properties of solutions and compounds. Examples calculated with the FactSage system are presented for binary, ternary and quaternary systems.
Proceedings Inclusion? Definite: At-meeting proceedings


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