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In this paper, Co₂Mo_xNi₂VW_x (x = 0.5, 0.6, 0.8, 1.0, 1.5, and 1.75 in molar ratio) eutectic high entropy alloys (EHEAs) were designed to achieve a combination of strength and ductility. The effects of Mo and W elements on the microstructures and mechanical properties of the alloys were investigated, and results showed that by decreasing the Mo and W contents to 0.8 in Co₂Mo_xNi₂VW_x alloy, a fully eutectic microstructure was obtained. By increasing the Mo and W contents to 1.75, a primary BCC solid solution phase plus eutectic microstructure were obtained. The eutectic microstructure consisted of a mixture of FCC solid solution phase and μ phase. The Co₂Mo_0·8Ni₂VW_0.8 alloy with the largest volume fraction of eutectic microstructure exhibited the highest compression strength of 2364 MPa, while the Co₂Mo_1·75Ni₂VW_1.75 alloy with the largest volume fraction of BCC phase exhibited the highest yield strength …