【摘要】 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。更多还原

【Abstract】 Abstract The effect of bismuth on the microstructure and mechanical properties of cast magnesium alloy has been investigated.The results indicated that proper additions of bismuth can improve the microstructure of magnesium alloy,thus increasing significantly its mechanical properties at both ambient and elevated temperature,while the ductility of the alloy decreased slightly.更多还原