Microstructure and Mechanical Properties of Micro/Nano Feconi1.5crcu /2024al Composites Treated by Temperature-Modulated Magnetic Aging

2024 aluminum alloy is one of the duralumin with high strength, low density, and good heat resistance. We use it primarily in aerospace, but due to its poor plastic toughness, the use and application scope of the workpiece has caused a specific limit, so the aging treatment will improve its performance after forming. Based on this, we carried out a variety of aging treatments for FeCoNi 1.5 CrCu/2024Al composite block by adjusting temperature and magnetism. Moreover, explore 2024 aluminum alloy under different external environment effects, the particle phase, and the aging mechanism of the precipitated phase. The results show that compared with the single solid solution treatment, oil bath time for material has the effect of steady improvement. Cryogenic aging at 196°Ccan make the plastic toughness of material good, magnetic aging more complex, but its all-around performance is the best.In summary, the temperatures-modulated magnetic aging treatment can increase the maximum yield strength to 407.4MPa, increase the shape variable by 26.42% and increase the shape variable by 135.26% compared with the contrast sample. With the increase in yield strength, the toughness, microhardness, and density of the material have been significantly improved. The fractured mode has also changed from cleavage fracture to ductile fracture after aging treatment