Al-Cu-Mg系铝合金具有较高的强度和良好的耐热性能,被广泛用于航空航天材料.微量Ag、Li的添加及复合添加能够改善Al-Cu-Mg系合金的性能,而析出相对合金的性能起决定作用.介绍了微量Ag、Li的添加及复合添加对Al-Cu-Mg合金析出相的影响,重点分析了不同析出相的结构特征、形成条件以及析出序列,并提出了存在的问题及应用前景.
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