PT - JOURNAL ARTICLE AU - Šlapáková, Michaela AU - Křivská, Barbora AU - Grydin, Olexandr AU - Cieslar, Miroslav TI - The Influence of Casting Methods on Microstructure of Al-Mg-Sc-Zr Alloy DP - 2018 Feb 1 TA - Manufacturing Technology Journal PG - 130--134 VI - 18 IP - 1 AID - 10.21062/ujep/65.2018/a/1213-2489/MT/18/1/130 IS - 12132489 AB - 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.