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Morphologies and Growth Mechanisms of the Eutectic Particles in As-Cast Al-Mg-Sc Alloy by D. Pan, S. Zhou, Z. Zhang, M. Li, H. Li, Y. Wu is a scholarly article available to read on EtoBox.

What is Morphologies and Growth Mechanisms of the Eutectic Particles in As-Cast Al-Mg-Sc Alloy about?

Primary particles with faceted cubic morphology were produced in as-cast Al-Mg alloy due to the addition of Sc. The cross-section of the particles revealed some eutectic structure composed of multilayer of ‘Al3Sc + α-Al + Al3Sc····’. At the cooling rate of 200 – 300 K/s, Al3Sc primary phase nucleated initially on oxides within the melt and developed to a cubic structure with a ‘cellular-dendritic’ mode of growth. The formation of α-Al structural shells was attributed as a reason for the segregation of Mg-rich lamellar dendrites at later stages. A growth mechanism for multilayer structure was proposed using the results presented. Al-Mg-Sc; primary particles; eutectic; cellular-dendritic; multilayer-structure; Primärpartikel,eutektisch,zellular-dendritisch,Multischichtstruktur Al-Mg-Sc,primary particles,eutectic,cellular-dendritic,multilayer-structure,Primärpartikel,eutektisch,zellular-dendritisch,Multischichtstruktur

Author

D. Pan, S. Zhou, Z. Zhang, M. Li, H. Li, Y. Wu