In this study, the effectiveness of three different types of Mg-based blowing agents on the structure and properties of aluminum alloy foam was compared. AlMg15Cu10 alloy foams were produced by the powder metallurgy route using pure Mg, Al50Mg50 and Al60Mg40 powders as blowing agents. Al50Mg50 and Al60Mg40 powders were synthesized by ball milling and melt milling, and were characterized by particle size analysis, XRD and SEM. Foams were characterized by using X-ray tomography, SEM and XRD. Mechanical properties were obtained through quasi-static compression tests. It was observed that the foams produced by Mg possess spherical cells whereas more polyhedral cells were obtained in the foams produced by Al50Mg50 and Al60Mg40. The finest cells were produced by Al60Mg40 powder. Variation in the cell size is attributed to the different hydrogen contents of these blowing agents. All foams resulted in a good porous structure and possess high compressive strength compared with conventional foams.

中文翻译：

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用于泡沫铝的镁和镁基发泡剂

本研究比较了三种不同类型的镁基发泡剂对铝合金泡沫结构和性能的影响。以纯镁、Al50Mg50 和 Al60Mg40 粉末为发泡剂，通过粉末冶金路线生产 AlMg15Cu10 合金泡沫。采用球磨和熔磨合成Al50Mg50和Al60Mg40粉末，并通过粒度分析、XRD和SEM进行表征。通过使用 X 射线断层扫描、SEM 和 XRD 对泡沫进行表征。通过准静态压缩试验获得机械性能。观察到，Mg 制备的泡沫具有球形泡孔，而 Al50Mg50 和 Al60Mg40 制备的泡沫具有更多的多面体泡孔。最好的电池是由 Al60Mg40 粉末制成的。泡孔尺寸的变化归因于这些发泡剂的不同氢含量。与传统泡沫相比，所有泡沫都具有良好的多孔结构并具有较高的抗压强度。