High-plasticity high-activity single-phase energetic high-entropy alloy and preparation method thereof

The invention discloses a high-plasticity high-activity single-phase energy-containing high-entropy alloy which is composed of A-class high-plasticity solid solution matrix elements and B-class high-reaction-activity components, the molecular formula is marked as AxBy, the A-class high-plasticity solid solution matrix elements are two or more of Co, Cr, Fe and Mn, the B-class high-reaction-activity components are two or more of Ni, Al, Ti, Zr, AlMg, AlCe and AlY, and x is larger than or equal to 40 and smaller than or equal to 75, y is larger than or equal to 25 and smaller than or equal to 60, and x + y is equal to 100. The high-plasticity high-activity single-phase energetic high-entropy alloy is composed of the high-plasticity solid solution matrix element and the high-reaction-activity component, the high-plasticity solid solution matrix element ensures plasticity and subsequent machinability, and the high-reaction-activity component ensures high reaction activity and energetic characteristics; the high-p