交流磁场对过共晶Al-Fe合金初生相的影响
张建锋1,蓝青2,郭瑞臻2,乐启炽2()
Effect of Alternating Current Magnetic Field on the Primary Phase of Hypereutectic Al-Fe Alloy
ZHANG Jianfeng1,LAN Qing2,GUO Ruizhen2,LE Qichi2()

图7. Lorentz力示意图

Fig.7. Schematics of the Lorentz force (B—magnetic induction, μ0—permeability of vacuum, ?—nabla operator)(a) rotational force part (fro) (b) non-rotational force part (fir)