Abstract
Integrated thermodynamic software packages are a powerful tool to analyze phase formation in multicomponent Mg alloys, providing key data for focused alloy and process development. The thermodynamic database of the alloy system is the indispensable basis for this direct application, but also needed for any further step towards Integrated Computational Materials Engineering. The database quality, which may vary widely, is crucial for the reliability of such applications. Progress in development and extension of the large thermodynamic database for magnesium alloys is reported, with emphasis on consistency, coherency and quality assurance. One aspect is the coherent description of large solid solution ranges of intermetallic phases in multicomponent Mg alloys with rare earths. Further addition of Zn may produce complex icosahedral, long-period stacking order (LPSO) or other hexagonal phases. All these may form highly efficient secondary phase precipitates in the (Mg) matrix. Examples are given for Mg-Ce-La, Mg-Ce-Y, and Mg-Gd-Nd-Y-Zn-Zr alloys.
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Schmid-Fetzer, R. (2015). Progress in Thermodynamic Database Development for ICME of Mg Alloys. In: Manuel, M.V., Singh, A., Alderman, M., Neelameggham, N.R. (eds) Magnesium Technology 2015. Springer, Cham. https://doi.org/10.1007/978-3-319-48185-2_53
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DOI: https://doi.org/10.1007/978-3-319-48185-2_53
Publisher Name: Springer, Cham
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