| Abstract Scope |
Porous metals are desirable in applications that require low density, high strength to weight ratio, and large specific area. High-entropy-alloys (HEA) is a new family of metal alloys that exhibit high strength, ductility, and fracture toughness due to the formation of multi-element solid solution. Here, we report the synthesis of porous AlCoCrFeNi HEA by combining the space filler and powder metallurgical approaches. The HEA powders with different fillers and compacted, sintered, and characterized. The effects of processing parameters on the density, the microstructure, and the mechanical behavior are investigated. The results are compared with the fully dense samples made by casting. |