Manufacturing and Investigation of In Situ and Ex Situ Produced Aluminum Matrix Foam?Filled Tubes

Composite metal foams (CMFs) are hybrid structures, which usually produced from separate parts, and not in one step as functional, structural elements. Functional CMFs characterized by high strength, stiffness, extreme energy absorbing properties compared with conventional metallic foams, allow them to be used load-bearing Test specimens made AlMgSi0.5 tubes the wall thickness of 5 mm. AlSi12 casting alloy is matrix material. To ensure foam structure porosity, lightweight expanded clay aggregate particles (LECAPs) unimodal bimodal size distribution. The results show that low-cost foam-filled (FFTs) can situ inert gas pressure infiltration. Besides their low density, these achieve toughness, special, functional simple foams. After heat treatment, FFTs have highest absorption capacity an average 67.2 J cm?3, 9% higher than value ex FFTs. Therefore, it advantageous produce FFTs, because proper manufacturing, requires less machining, making production easier, while achieving better compressive properties.