Authors: Arthur D Pelton Gunnar Eriksson Christopher W Bale
Publish Date: 2017/03/15
Volume: 48, Issue: 6, Pages: 3113-3129
Abstract
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 as that in the case of Scheil–Gulliver cooling It is shown how these diagrams can be calculated and plotted by the 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 using the FactSage system are presented for the AlLi and AlMgZn systems and for the AuBiSbPb system and its binary and ternary subsystems
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