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在AlSi10Mg铸造铝合金凝固过程中施加不同的机械振动幅度和机械振动频率的振动处理,研究了机械振动参数对AlSi10Mg合金组织和力学性能的影响。结果表明,随着机械振幅的增加,合金的抗拉强度和断后伸长率呈现先增加而后降低的趋势,在机械振幅为0.11mm时取得最大值;随着机械振动频率的增加,合金的抗拉强度和断后伸长率呈现先增加而后降低的趋势,在机械振动频率为36Hz时取得最大值;AlSi10Mg合金在凝固过程中的适宜的机械振动参数为:机械振幅为0.11mm、机械振动频率为36Hz。机械振动改善AlSi10Mg铸造铝合金的强度和塑性主要与合金的组织均匀性和晶粒细化有关。
In the process of AlSi10Mg cast aluminum alloy solidification, different mechanical vibration amplitude and mechanical vibration frequency were applied to deal with the influence of mechanical vibration parameters on the microstructure and mechanical properties of AlSi10Mg alloy. The results show that with the increase of mechanical amplitude, the tensile strength and elongation at break of the alloy first increase and then decrease, and reach the maximum when the mechanical amplitude is 0.11mm. With the increase of mechanical vibration frequency, The tensile strength and elongation after fracture showed the trend of first increasing and then decreasing, and the maximum value was obtained when the mechanical vibration frequency was 36 Hz. The suitable mechanical vibration parameters of AlSi10Mg alloy during solidification were: mechanical amplitude 0.11mm, mechanical vibration frequency 36Hz. Mechanical Vibration Improvements The strength and ductility of AlSi10Mg cast aluminum alloys is primarily related to the homogeneity of the alloy and grain refinement.