Aluminium alloy foams are a form of porous metal whose structure resembles the shape of natural
materials such as coral, bone, sponge, etc. Due to their structure, these materials retain good
mechanical properties of the base material while being significantly lighter than non-porous metal.
Metal foams can be used as energy and vibration absorbers, heat exchangers, insulators, and filters.
The main disadvantage of this type of material is its high production cost. To reduce production
costs, aluminium alloy chips are used as base material. Foams are made of A360 and AA 7075
aluminium alloys. To produce a porous structure, CaCO3 is used as a foaming agent while Zn and
CaOwere added as stabilizing agents. The main goal of the paper was to investigate the difference
in the shape of pores and relative density after foaming with different stabilizing agents.
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