Microstructure and Properties of AlCrCoFeNi High-Entropy Alloys Prepared by Spark Plasma Sintering.

CoCrFeNi high-entropy alloys represent a novel structural material with considerable application potential in a variety of fields, including aerospace, automobiles, ships, machining, energy, soft magnetic materials, and hydrogen storage materials. The present study investigates the impact of the Al element on the structure and properties of the alloy. The preparation of the AlCrCoFeNi ( = 0.