Design of synergistic alloying CoCrFeNi eutectic high entropy alloy based on infinite solid solution

Multivariate synergistic alloying is an effective means to improve the comprehensive mechanical properties of metallic materials. Eutectic high-entropy alloys achieve heterogeneous biphasic layered structures on the micro and nano scale resulting in very good properties, most of the current alloying studies of CoCrFeNi eutectic high -entropy alloys focus on unitary alloying. In this work, the design strategy of CoCrFeNi eutectic high-entropy alloys based on infinite solid solution synergistic alloying is proposed, and a series of eutectic high-entropy al-loys consisting of face-centered cubic (FCC) and intermetallic compound (IM) with fine and regular micro-structures are successfully designed, and some of the synergistic alloying eutectic high-entropy alloys have very excellent comprehensive mechanical properties.

Automated summary

Multivariate synergistic alloying is an effective approach to enhance the overall mechanical properties of metallic materials. Eutectic high-entropy alloys with heterogeneous biphasic layered structures at the micro and nano scale exhibit excellent properties. However, most current studies on CoCrFeNi eutectic high-entropy alloys focus on unitary alloying. In this work, a design strategy based on infinite solid solution synergistic alloying is proposed for CoCrFeNi eutectic high-entropy alloys, leading to the successful design of eutectic high-entropy alloys with fine and regular micro-structures, some of which possess exceptional comprehensive mechanical properties.