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首页> 外文期刊>International Journal of Minerals,Metallurgy and Materials >Effect of Ce addition on microstructures and mechanical properties of A380 aluminum alloy prepared by squeeze-casting
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Effect of Ce addition on microstructures and mechanical properties of A380 aluminum alloy prepared by squeeze-casting

机译：Ce添加对A380铝合金CeAly结构和力学性能的影响

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摘要

The effect of cerium (Ce) addition on the eutectic Si, beta-Al5FeSi phase, and the tensile properties of A380 alloy specimens prepared by squeeze-casting were studied by optical microscopy (OM), scanning electron microscopy (SEM), and X-ray diffraction (XRD). The experimental results showed that Ce more effectively modified the eutectic Si and refined the beta-Al5FeSi. The refinement effect significantly increased under a specific pressure of 100 MPa with the addition of Ce from 0.1wt% to 0.9wt%. In contrast, the average length and the aspect ratio of the eutectic Si and beta-Al5FeSi exhibited their optimal values when the content of the added Ce was greater than 0.5wt%. Needle-like Al8Cu4Ce was precipitated with the addition of excessive Ce; hence, the mechanical properties of A380 gradually decreased with increasing Ce content in the range from 0.3wt% to 0.9wt%.
机译：通过光学显微镜（OM）研究铈（Ce）对共晶Si，β-Al5FesI相对通过挤压浇铸制备的A380合金标本的拉伸性能的影响，扫描电子显微镜（SEM）和X- 射线衍射（XRD）。 实验结果表明，CE更有效地修饰了共晶Si并精制了β-Al5Fesi。 在100MPa的比压力下，细胞的细化在0.1wt％至0.9wt％的特定压力下显着增加。 相反，当添加CE的含量大于0.5wt％时，共晶Si和β-Al5Fesi的平均长度和纵横比表现出它们的最佳值。 通过添加过量的CE沉淀针状Al8Cu4CE; 因此，A380的机械性能随着0.3wt％至0.9wt％的增加而逐渐降低。

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