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首页> 外文期刊>Journal of Materials Engineering and Performance >Effect of the Spinning Deformation Processing on Mechanical Properties of Al-7Si-0.3Mg Alloys
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Effect of the Spinning Deformation Processing on Mechanical Properties of Al-7Si-0.3Mg Alloys

机译：旋压变形工艺对Al-7Si-0.3Mg合金力学性能的影响

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摘要

This study investigates the mechanical properties of Al-7Si-0.3Mg (A356) alloy affected by the spinning deformation processing (SDP). The cast structure of the A356 alloy becomes elongated with increasing reduction in thickness. This leads to reduction of casting defects, and refines and distributes the eutectic silicon phase throughout the Al-matrix. The hardness tends to reach a steady value due to the uniformity of the microstructure with the reduction in thickness. The SDP leads to a re-arrangement in the eutectic region, which forces the propagation of cracks through the ductile α-Al phase. The tensile strength and elongation increases accordingly. The improvement on tensile strength and elongation produces the best quality index for A356 alloy.
机译：这项研究调查了Al-7Si-0.3Mg（A356）合金受旋转变形处理（SDP）影响的力学性能。随着厚度的减小，A356合金的铸造结构变得细长。这样可以减少铸造缺陷，并在整个Al基体中细化和分布共晶硅相。由于微观结构的均匀性以及厚度的减小，硬度趋于达到稳定值。 SDP导致在共晶区域的重新排列，这迫使裂纹通过可延展的α-Al相扩散。拉伸强度和伸长率相应地增加。拉伸强度和伸长率的提高产生了A356合金的最佳质量指标。

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