Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf

Radial solidification of Al-Si alloys in the presence of a rotating magnetic field

Travnikov, V.; Nikrityuk, P. A.; Eckert, K.; Räbiger, D.; Odenbach, S.; Eckert, S.

We study the flow during the radial solidification of an Al-7wt pct Si melt inside a cylindrical cavity with cooled side walls which is placed in a rotating magnetic field (RMF). The solidification process is simulated by means of a continuum model which is implemented in a code which solves the axisymmetric Navier-Stokes equations. qwe first analyz the start-up of the buoyancy-driven convection driven by the radial heat flux in absence of the RMF. We show that the initial large vortex breaks up into three smaller ones. The resulting radial temperature profiles are compared with experimental data. Second, we study how the vortex structure is modified by the application of small RMF's.

Keywords: solidification; Al-Si alloys; convection; rotating magnetic field

  • Lecture (Conference)
    Modeling of Casting, Welding and Advanced Solidification Processes 2012 (MCWASP XIII), 17.-22.06.2012, Schladming, Österreich
  • Open Access Logo IOP Conference Series: Materials Science and Engineering 33(2012), 012048
    DOI: 10.1088/1757-899X/33/1/012048
    Cited 3 times in Scopus

Publ.-Id: 17013