%A Na ZHANG,Yanjun YU,Yuqing WANG,Degang ZHAO %T Liquid-liquid phase separation and solidification behavior of Al65Bi28Cu7 monotectic alloy %0 Journal Article %D 2020 %J Journal of Shandong University(Engineering Science) %R 10.6040/j.issn.1672-3961.0.2019.002 %P 123-128 %V 50 %N 1 %U {http://gxbwk.njournal.sdu.edu.cn/CN/abstract/article_1902.shtml} %8 2020-02-20 %X

The liquid-liquid phase separation of Al65Bi28Cu7 monotectic alloy melt cast in copper mould was investigated by resistivity method. The formation mechanism of core-shell structure of Al65Bi28Cu7 monotectic alloy was discussed. The results showed that the anomalous changes in ρ-T curve confirmed the occurrence of liquid phase separation, monotectic reaction and eutectic reaction in the solidification of Al65Bi28Cu7 monotectic alloy melt. The anomalous change above monotectic temperature in ρ-T curve should be attributed to the concentration fluctuation of melt. The core-shell structure of Al-rich core covered by Bi-rich could form in the Al65Bi28Cu7 monotectic alloy.