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研究了Ｂｉ对铸造镁合金显微组织和力学性能的影响。结果表明，添加适量Ｂｉ可以改善镁合金显微组织，从而使合金的室温和高温力学性能明显提高，但塑性有所降低。
The effect of Bi on the microstructure and mechanical properties of cast magnesium alloy was studied. The results show that adding appropriate amount of Bi can improve the microstructure of the magnesium alloy, so that the mechanical properties of the alloy at room temperature and high temperature are obviously improved, but the plasticity is reduced.