本文采用渗流工艺制备具有开孔结构的泡沫工业纯铝、泡沫铝-锌合金(Al-28wt%Zn)及泡沫铝-镁合金(Al-10wt%Mg),在多功能内耗仅上对这三种具有相同结构和相对密度的泡沫铝合金的阻尼性能进行了研究.实验结果表明,铸态下的泡沫铝-镁合金的阻尼性能高于泡沫纯铝,而泡沫铝-锌合金在室温下的阻尼性能比泡沫纯铝及泡沫铝-镁合金高3～4倍,分析认为泡沫铝-锌合金的高阻尼机制主要是由于在振动时其基体中较软的α相与较硬的富锌η相界面产生粘滞流动消耗能量的结果.
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