Mg含量对ADC12铝合金组织及性能的影响

作者：石锦罡; 姚辉; 陈名海; 刘宁; 李清文

来源：2013中外压铸技术交流会, 苏州, 2013-12-01.

• 铝合金
• 金相组织
• 性能表征
• 镁含量

　　The strengthening of ADC12 Al-Si-Cu series aluminum die-casting alloy resulting from addition of magnesium and its strengthening mechanism were investigated .The results show that the strength of ADC12 alloy in east or T6 treatment condition increases with the increase of magnesium content that is lower than 1.0% .whereas the strength decreases with the increase of magnesium content that is above 1.0% . Fhe alloy is principally strengthened by formation of suitable amount of Mg2Si phase and refinement of eutectic silicon phase without segregation.Excessive magnesium enable more Mg2Si phase to form and to segregate at grain boundaries,resuhing in decrease in strength of the alloy.

• 单位
  中国科学院苏州纳米技术与纳米仿生研究所; 材料科学与工程学院; 合肥工业大学