| Abstract Scope |
High entropy alloys (HEAs) have revolutionized the materials industry with their synergistic mechanical properties. These alloys are potential candidates for structural applications across automotive, aerospace, nuclear, military, and power generation industries, hence understanding their deformation and failure mechanisms is crucial. A lightweight eutectic HEA with an AlCoFeNi₂ composition, featuring fcc and B2 phases, has shown great potential for aerospace and nuclear applications due to its high strength, melting point, creep resistance, corrosion resistance, and thermal stability. For application in extreme environments, its properties under high strain rates need thorough evaluation. The split Hopkinson pressure bar technique allows for deformation testing at strain rates of >10³ s⁻¹, critical for studying the material’s high strain rate failure mechanisms. This study investigates the high strain rate behavior of the eutectic HEA to understand the heterogeneous failure mechanisms within both phases and the factors leading to the material failure. |