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铝合金是应用广泛的金属材料,但铝合金的强度不高,这在很大程度上限制了铝合金的应用范围。本研究利用多向锻造及时效处理技术加工变形铝合金。结果表明,试样组织显著细化且超细的第二相微粒弥散分布,抗拉强度和硬度大幅度增加且塑性良好,抗拉强度、硬度和伸长率分别为386.1 MPa、120 HV和11.02%;强度和硬度大幅度提高是由于组织显著细化和超细第二相微粒弥散分布;多次累积应变和时效处理能改善晶界状态,使锻件塑性增强。
Aluminum alloy is a widely used metal material, but the strength of aluminum alloy is not high, which limits the application range of aluminum alloy to a great extent. In this study, the use of multi-directional forging and aging treatment of deformed aluminum alloy. The results show that the microstructure of the microstructure is refined and the fine second phase particles are dispersed and distributed. The tensile strength and hardness increase greatly and the plasticity is good. The tensile strength, hardness and elongation are 386.1 MPa, 120 HV and 11.02% The strength and hardness increase greatly due to the microstructure refinement and dispersion of the ultrafine second-phase particles. The multiple cumulative strain and aging treatment can improve the grain boundary state and strengthen the forging.