Magnesium and Magnesium Alloy Foams

In this article we report the required conditions for production of Mg and Mg Al alloy foams starting from metallic powders. Al content was varied from 0 to 17 wt. . Uniaxial hot pressing and extrusion were used to prepare foamable precursors both with and without blowing agent. Foaming was performed under argon atmosphere. Two different foaming techniques were employed conventional foaming under 1 bar and Pressure Induced Foaming PIF . Foaming process was monitored in situ by X ray radioscopy. Foams were evaluated in terms of their volume expansion and macrostructur