Effects of the low voltage pulsed magnetic field（LVPMF）on solidification structure of 2024 wrought aluminum alloy were investigated

and the effects of pouring temperature and discharging voltage on morphology and size of α-Al phase in 2024 wrought aluminum alloy were observed.The results show that primary and eutectic phase in the alloy can be refined obviously by LVPMF.With the pouring temperature near to liquidus temperature increasingly

the average grain size is refined gradually.With the increase of discharging voltage

average grain size of primary α-Al particles is decreased.With discharging voltage of 250V

average grain size of primary α-Al particles reaches minimum values.