Research Progress of Effect of Unsteady Magnetic Field on Solidification Structure of Hypereutectic Al-Si Alloy

The action mechanism of the non-steady magnetic field on the hypereutectic Al-Si alloy was reviewed, and the solidification characteristics, microstructure evolution and the effect of electromagnetic oscillation on the purification of primary Si particles under unsteady magnetic field were analyzed.Finally, the problems existing in the current research and the future research direction were put forward.