FeCrCoNi high-entropy alloys were prepared using mechanical ball milling and discharge plasma sintering,the V element was introduced by decreasing the content of Co and Ni elements,and the effect of V on microstructure and mechanical properties of the Fe45Cr15Co10Ni30 alloy was investigated.The results show that the V-containing high-entropy alloys form V-rich BCC phases compared with the Fe45Cr15Co10Ni30 alloy,the morphology and distribution of the BCC phases change with the increase of V content.The yield strength and compressive strength of the Fe45Cr15Co2.5Ni22.5V15 alloy reach the highest of 869±8 MPa and 1675±5 MPa,respectively,and the strain rate of 46.1％±1.7％,also maintains a high level.The introduction of V effectively improves the hardness and compressive properties of the Fe45Cr15Co10Ni30 alloy,and the alloy with good strength and plasticity matching can be obtained.
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