Thermosolutal convection and macrosegregation during directional solidification of TiAl alloys in centrifugal casting

•The effect of centrifugation on TiAl directional solidification is investigated.•Three-dimensional numerical simulations of solidification were performed.•A one-vortex fluid pattern is produced during solidification under centrifugation.•The aluminum segregation is not axisymmetric under centrifugation.