This study aimed at understanding the structure and properties of the arc-melted alloy Al0.8CrFeNi2.1 described  in [1] and pertaining to the group of so called eutectic high-entropy alloys or EHEA [2-4]. The microstructure of the as-cast alloy was evaluated using scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and electron backscatter diffraction (EBSD). Furthermore, the mechanical behavior of the alloy was investigated under monotonic and cyclic loading, using instrumented micro-indentation, tensile and three-point bending tests as well as fatigue tests in a three-point bending configuration. Furthermore, the finite element analysis software Abaqus [5] was used to simulate the elastoplastic deformation and stress distribution for selected test configurations. Reverse modeling [6] was applied to determine the parameters of the materials’ constitutive behavior.
We will present and discuss the relation between monotonic and cyclic properties and compare the materials properties with other EHEA alloys and well established engineering materials.