Research Progress in Controlling Solidification Microstructure of Aluminum and Aluminum Alloy by Pulsed Magnetic Field

Author of the article:LIU Jia, JIE Jinchuan, QU Jianping, LI Guoliang, LI Tingju

Author's Workplace：Key Laboratory of Solidification Control and Digital Preparation Technology, Dalian University of Technology, Dalian 116024, China

Key Words：pulsed magnetic field; solidification microstructure; grain refinement; columnar to equiaxed transition; computer simulation

Abstract：Pulsed magnetic field (PMF) has a good application prospect in aluminum and aluminum alloy casting by virtue of instantaneous strong magnetism, no pollution to materials and convenient operation. Based on the origin of nucleation and the mechanism of columnar to equiaxed transition (CET), the influence of pulsed magnetic field on solidification structure is reviewed, the mechanism of solidification microstructure refinement and control is summarized, and the application of numerical simulation in this field is prospected.