Effects of self-inoculation method （SIM） and melt treated temperature on as-cast microstructure of ZL101 semi-solid slurry prepared by a novel self-inoculation rheoforming method were investigated.The results show that grain with 25～49 μm in size and 37 μm in average equivalent spherical diameters can be observed in self-inoculated ZL101 alloy slurry.The desirable refinement can be obtained in the alloy slurry with 5% self-inoculators addition at 710 ℃ by flowing on the deflector with 45°.Inoculator addition can promote the nucleation of primary α-Al

and shearing and chilling effects of deflector can generate new nuclei by broking dendrite

which results in the increase of grain size during alloy solidification

greatly refining grain size in the alloy slurry.