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采用控制铸造技术，改变主要工艺参数，制备了不同尺寸的Ａｌ－Ｂｉ偏晶合金铸锭．利用扫描电镜，电子探针等技术研究了浇注速度、预冷却和铸锭冷却强度对Ａｌ－Ｂｉ偏晶合金铸锭的微观结构的影响．结果表明：用该技术制备的Ａｌ－Ｂｉ偏晶合金能够有效地抑制Ｂｉ相宏观偏析，获得组织均匀的铸锭．
By controlling the casting technology and changing the main process parameters, Al-Bi amorphous alloy ingots with different sizes were prepared. The effects of pouring speed, pre-cooling and ingot cooling intensity on the microstructure of Al-Bi amorphous alloy ingot were studied by using scanning electron microscopy, electron probe and other techniques. The results show that the Al-Bi amorphous alloy prepared by this technique can effectively inhibit the macro-segregation of Bi phase and obtain an ingot with uniform microstructure.