Abstract
We have extended Miedema's model to the modelling of free-energy diagrams in ternary alloys and applied the extended model to obtain a thermodynamic characterization of the glass formation range in Mg–Cu–Y. A structural term has been added in the calculation of the free energy of formation of solid solutions. By assuming that amorphization competes with formation of the hcp and fcc solid solutions, we have evaluated the region of compositions in which the system can be amorphized by quenching or casting of the liquid alloy. Equations of analytical geometry are proposed to search for regions of coexistence of amorphous and solid solutions, which could not be found for this ternary alloy. Heats of glass crystallisation have been calculated. The results of our model are in reasonable agreement with experimental data.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
