Semi-solid slurry of AZ91 magnesium alloy prepared by electromagnetic stirring near liquidus temperature  

作　　者：ZHANG Xiao-li TENG Hai-tao LI Ting-ju XIE Shui-sheng Jin Jun-ze 

机构地区：[1]School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China [2]Beijing General Research Institute for Non-ferrous Metals, Beijing 100088, China

出　　处：《China Foundry》2007年第3期186-189,共4页中国铸造（英文版）

基　　金：The project was supported by the National Natural Science Foundation of China (No.50374014).

摘　　要：An electromagnetic stirring process near liquidus temperature was designed and demonstrated experimentally to produce semi-solid slurry of AZ91 magnesium alloy,in order to avoid not only contamination from mechanical stirring but also the inflammation of Mg alloy melt at elevated temperature. AZ91 alloy feedstock was isothermally heat treated at 600-610 for 20 min,and then stirred by electromagnetic field. Globular primary particle characteristic was observed optically in the castings. Mechanical properties were also studied.An electromagnetic stirring process near liquidus temperature was designed and demonstrated experimentally to produce semi-solid slurry of AZ91 magnesium alloy, in order to avoid not only contamination from mechanical stirring but also the inflammation of Mg alloy melt at elevated temperature. AZ91 alloy feedstock was isothermally heat treated at 600-610℃ for 20 min, and then stirred by electromagnetic field. Globular primary particle characteristic was observed optically in the castings. Mechanical properties were also studied.

关 键 词：semi-solid slurry AZ91 magnesium electromagnetic stirring microstructure near-liquidus 

分 类 号：TG146.22[一般工业技术—材料科学与工程]