PT Journal
AU Slapakova, M
   Krivska, B
   Grydin, O
   Cieslar, M
TI The Influence of Casting Methods on Microstructure of Al-Mg-Sc-Zr Alloy
SO Manufacturing Technology Journal
PY 2018
BP 130
EP 134
VL 18
IS 1
DI 10.21062/ujep/65.2018/a/1213-2489/MT/18/1/130
DE Al-Mg; Twin-roll casting; Conventional casting; Central segregation; Particles distribution
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.
ER