Quasicrystal-Enhanced Nucleation During the Solidification of fcc Metallic Alloys: A Tentative Thermodynamic Approach
Journal of Phase Equilibria and Diffusion(2015)
摘要
This short contribution is an ex-tended abstract which summarizes arecent discovery we have maderegarding the nucleation of fcc grainsduring the solidification of metallicalloys. While trying to analyze theeffects of minute solute additions tothe directional solidification of alu-minum alloys, we observe that200 ppm of Cr added to Al-20 wt.%Zn alloys induced a changeof the primary trunk growth directionfrom AE100ae to AE110ae.
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关键词
Peritectic Transformation, Icosahedral Quasicrystal, Fivefold Symmetry, Equiaxed Solidification, Interfacial Energy Anisotropy
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