Manufacturing Technology 2018, 18(1):130-134 | DOI: 10.21062/ujep/65.2018/a/1213-2489/MT/18/1/130

The Influence of Casting Methods on Microstructure of Al-Mg-Sc-Zr Alloy

Michaela Šlapáková1, Barbora Křivská1, Olexandr Grydin2, Miroslav Cieslar1
1 Charles University, Faculty of Mathematics and Physics, Ke Karlovu 5, Praha 2, Czech Republic
2 University Paderborn, Faculty of Mechanical Engineering, Lehrstuhl für Werkstoffkunde Microscopy, Pohlweg 47-49, 33098 Paderborn, Germany

Two methods of fabrication of Al-Mg-Sc alloy are compared - conventional casting followed by cold-rolling and twin-roll casting. To the advantages of twin-roll casting belong the lower material and energy requirements during the production. However, twin-roll cast material exhibits different initial microstructure and routes established for conventionally cast materials cannot be applied. In twin-roll cast material the distribution of primary particles is more inhomogeneous - they form segregation near the center and edges of the sheet and their average size is smaller. On the contrary, the average sub-grain size is much higher in the twin-roll cast material.

Keywords: Al-Mg, Twin-roll casting, Conventional casting, Central segregation, Particles distribution

Published: February 1, 2018  Show citation

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Šlapáková M, Křivská B, Grydin O, Cieslar M. The Influence of Casting Methods on Microstructure of Al-Mg-Sc-Zr Alloy. Manufacturing Technology. 2018;18(1):130-134. doi: 10.21062/ujep/65.2018/a/1213-2489/MT/18/1/130.
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