Abstract
A novel Fe2CrNiSi0.3Al0.28 high-entropy alloy (HEA) was designed and produced via arc-melting. This Co-free Fe-rich HEA mainly consists of bulky body-centered cubic (BCC) structure and branches of fine needle-like face-centered cubic (FCC) particles. Moreover, this as-cast HEA exhibits the ultimate tensile strength (UTS) of ∼1.3 GPa and plasticity of ∼9%. Compared to the typical ductile as-cast HEAs, it shows among the highest UTS and lowest cost. Heterostructure exhibits positive influence on its high mechanical properties. This work provides a novel insight for propelling broad applications of HEAs.
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