Recently, the interweaving of materials science and electromagnetism theory gave birth to the new and leading topic – electromagnetic processing of materials. High magnetic field, as a powerful, directional and precisely controllable, non-contacting external field exerts ample and mighty influence on materials. Thus, introducing a high magnetic field to materials during their treatment through the magnetism of atoms and the magnetism variation of various phases incubates chances for discovering new phenomena, establishing new theories and developing new technologies.