<p>Al_0.5CrFeNiTi_x(x = 0, 0.125, 0.25, 0.5, 0.75, 1.0) high-entropy alloys was fabricated using a vacuum arc melting furnace. Effects of Ti content on microstructural, mechanical properties and corrosion properties were systematically studied. The results demonstrate that without the addition of Ti, the alloy exhibited a single-phase BCC structure. As Ti content increased, the partially ordered BCC phase transformed into the L2₁ phase, resulting in a BCC + L2₁ dual-phase hypoeutectic microstructure (x = 0.125 and 0.25). The volume fraction of the L2₁ phase increases with the rise in Ti content, enhancing the alloy’s mechanical properties. However, the precipitation of the Laves phase cause a reduction in mechanical properties. The Al_0.5CrFeNiTi_0.25 alloy exhibits the most favorable comprehensive mechanical properties, with compressive yield strength, compression ratio, and microhardness of 2036.9&#xa0;MPa, 40%, and 619.33 HV, respectively. The corrosion resistance of studied high-entropy alloys improves with an increase in the volume fraction of the L2₁ phase but decreases with a rise in the volume fraction of the Laves phase. Al_0.5CrFeNiTi_0.5 exhibits the most favorable corrosion resistance, as evidenced by its E_corr and I_corr values of -362 mV and 5.8 × 10^-8A/cm², respectively. The research provides a novel foundation for developing high-entropy alloys with improved mechanical strength, corrosion resistance, and cost-effectiveness.</p> Graphical Abstract <p></p>