Effect of ultrasonic and electromagnetic fields on solidification structure of hypoeutectic Al -Si alloy
FU Ying
LIU Chang
ZHANG Yu-bo
JIE Jin-chuan
LI Ting-jui
XIE Jun
Abstract：The morphology of primary α-Al and eutectic silicon in 4004 aluminum alloy under diverse physical fields was investigated .The diverse physical fields are ultrasonic ( UST ) or electro-magnetic (EMS), and their compound (UE).The results showed that the solidification structures of ingots could be refined by using UST or EMS solely .In particular , the high-intensity ultrasonic vibra-tion had a significant effect on refining eutectic silicon phase .When the compound field was imposed , both the primary aluminum phase and the eutectic silicon phase were refined , the refinement effect is nearly uniform with the samples treated by power ultrasonic solely , however , the refinement zone in compound field would be larger than sole UST or EMS .
Keywords：power ultrasonicelectromagnetic stirringhypoeutectic Al-Si alloy
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 70-74,87 )