Thermoelectric–Magnetic-Convection-Induced Band-Structure Growth in Peritectic Alloys Directionally Solidified Under Static Magnetic Fields

The formation of band structures in different peritectic alloys directionally solidified under transverse static magnetic fields was observed. Unidirectional thermoelectric–magnetic convection (TEMC), which modified solute transport in the liquid phase, was principally responsible for band-structure formation. A simple TEMC-regime-based model for predicting the compositional ranges in which band structures could form in alloys directionally solidified under transverse static magnetic fields was developed. The theoretical predictions agreed well with the experimental results.