The invention discloses a formula of a novel light high-entropy
alloy of an Al-Mg-Ti-Li-Ni-V
system, the novel light high-entropy
alloy has good mechanical performance and
low density, and the requirement of an automobile frame for materials with good
plasticity and high strength ratio can be effectively met. The
alloy prepared according to the method in the claim 1 is characterized in that the density of the novel alloy is 3.9-6.8 g / cm < 3 >, and compared with dual-phase steel, the density is reduced by 12-50%; the
melting point is 1350-1800 DEG C and is improved by 108-177% compared with that of a
magnesium alloy (the
melting point is 650 DEG C); the novel alloy has good mechanical performance at normal temperature, the yield strength reaches 500-650 MPa or above, and the yield strength of the novel alloy is 10-96% higher than that of an AZ91D
magnesium alloy, 7-60% higher than that of a six-series aluminum alloy and 60-110% higher than that of dual-phase steel; and the elongation rate exceeds 20-30%, is 100-200% higher than that of an AZ31B
magnesium alloy and is 67-150% higher than that of a six-series aluminum alloy, and the elongation rate is equivalent to that of dual-phase steel.