Effect of annealing on irradiation resistance of (FeCoNi)86Al7Ti7 high entropy alloys

•(FeCoNi)86Al7Ti7 alloy were fabricated using a selective laser melting technique.•The microstructural evolution of original and annealed the alloys were discussed.•The influences of the strength and hardness of the alloys are also investigated. (FeCoNi)86Al7Ti7 High-entropy alloys show high hardness, fatigue resistance and excellent mechanical property, making it appealing for nuclear industry application. In this paper, (FeCoNi)86Al7Ti7 High-entropy alloys were fabricated using a selective laser melting technique (SLM). The microstructural evolution of original and annealed the SLM alloys were discussed in detail after irradiating. In addition, the influences of the strength and hardness of high entropy alloys were also investigated.