Neu, T.R.; Mukherjee, M.; Garcia-Moreno, F.; Banhart, J.: Magnesium and Magnesium Alloy Foams. In: Porous metals and metallic foams : MetFoam 2011 : proceedings of the 7th International Conference on Porous Metals and Metallic Foams, held in Busan, Korea, September 18-21, 2011. Seoul, Korea: GSIntervision, 2012, p. 133-140

Abstract:
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 macrostructure.