Abstract
We present simulations of the nucleation and equiaxed dendritic growth of the primary hexagonal close-packed \(\mathrm{\alpha} \)-Mg phase followed by the nucleation of the \(\mathrm{\beta} \)-phase in interdendritic regions. A zoomed-in region of a melt channel under eutectic conditions is investigated and compared with experiments. The presented simulations allow prediction of the final properties of an alloy based on process parameters. The obtained results give insight into the solidification processes governing the microstructure formation of Mg-Al alloys, allowing their targeted design for different applications.
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Acknowledgements
This work was supported by the Fundamental Research Program of the Korea Institute of Materials Science (KIMS). A.M., O.S., and I.S. would like to thank KIMS for support under the collaboration project “Phase-field simulation of Microstructure Evolution in Ni-based Superalloys and Light-weight alloys.” I.S. would like to thank the German Research Foundation (DFG) for support under STE 1116/13-1. D.H. would like to thank the Helmholtz-Association for financial support.
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Monas, A., Shchyglo, O., Kim, SJ. et al. Divorced Eutectic Solidification of Mg-Al Alloys. JOM 67, 1805–1811 (2015). https://doi.org/10.1007/s11837-015-1418-4
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DOI: https://doi.org/10.1007/s11837-015-1418-4