Semi-solid aluminum alloy was prepared by pulsed magnetic field-inclined pipe casting compound preparation method.According to theory of compound preparation of semi-solid alloy

the semisolid preparation device was developed.Influences of different inclined angles and pulsed voltage on the semi-solid microstructure were investigated.The results show that the microstructure is changed from the rosette or dendritic structure into granular grains with spheroidization of grains and the decrease of eutectic microstructure with increasing in voltage.When the pulse voltage is low

the spheroidization of grains exhibits the better in low inclination angle.The spheroidization of grains becomes desirable increasingly with the increase of pulsed voltage.The formation of the semi-solid microstructure is attributed to the combined action of the nucleation thermodynamics and effects of mixing

shearing collision.