Gasar工艺作为制备规则多孔金属的一种方法已成功应用于Mg、Cu、Ni、Ag、Fe、Si等材料，但对于Al，实验发现在Gasar工艺下难以制得藕状多孔Al，本文对此进行了实验研究和理论分析，认为Al熔体中气体溶解总量过低是主要原因。
Many lotus-type porous metals have been fabricated by unidirectional solidification in the pressurized hydrogen and/or other gases, such as Mg、Cu、Ni、Ag、Fe、Carbon Steel and Si etc. But the same process is not viable for Al. Researches on this problem both from theoretical and experimental aspects were made in this article. The conclusion is that the absolute quantity of hydrogen dissolved in Al melt is too small to form lotus-type porous structure.
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