Foam Structure Effect on the Compression Behavior of Foamed Aluminum Alloy

Abstract

The effect of the foam structure on the compression behavior of an A–Si–Mg alloy foam, which was produced by a liquid metal method was experimentally investigated. The compressive stress–strain behavior is discussed due to the deformation of a cell within the foam. It is found that the foam with an 81.3 % porosity has both a higher energy absorption capacity and a higher efficiency. The compressive strength decrease as the porosity increases. Experimental result showed that the low compressive strength is attributed to cells imperfection due to the higher porosity.