▎ 摘　　要

NOVELTY - Preparation of high-entropy alloy composite material involves (s1) uniformly mixing nano reinforced phase powder and deionized water in ultrasonic vibration mode to obtain suspension, and (s2) uniformly mixing suspension and high-entropy alloy powder in ammonia atmosphere at the mixing temperature of 500-800℃, and drying in a vacuum environment to obtain nanoparticle reinforced high-entropy alloy composite material. The mass ratio of the nano reinforced phase powder to volume ratio of the deionized water is (1-20 mg):1 ml. USE - Preparation of high-entropy alloy composite material for additive manufacturing (all claimed) used in aerospace industry, automobile industry, mold manufacturing, and biomedical treatment. ADVANTAGE - The method provides high performance nanoparticles reinforced high-entropy alloy composite material complex structure portions. The nano reinforced phase powder can be nailed dislocation, to improve the strength of the composite material for additive manufacturing forming, inhibiting thermal cracking, reducing defect, improving alloy structure uniformity, the alloy strength and toughness are improved synchronously, the density is up to 99.8%, the volume fraction of the enhanced phase can reach more than 5.0%, and the mechanical property is close to the level of the conventional forge workpiece. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: a high-entropy alloy composite material; and a high-entropy alloy composite material additive forming.