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1. 发明申请

US20100126639A1 MAGNESIUM-CONTAINED HIGH-SILICON ALUMINUM ALLOYS STRUCTURAL MATERIALS AND MANUFACTURE METHOD THEREOF 审中-公开
标题翻译：含镁高铝合金结构材料及其制造方法
公开(公告)号：US20100126639A1
公开(公告)日：2010-05-27
申请号：US12451232
申请日：2008-06-30
申请人： Liang Zuo , Fuxiao Yu , Gang Zhao , Xiang Zhao , Yongliang Yang , Yan Li
发明人： Liang Zuo , Fuxiao Yu , Gang Zhao , Xiang Zhao , Yongliang Yang , Yan Li
IPC分类号： C22F1/05 , C22F1/04
CPC分类号： C22C21/02 , C22F1/043
摘要： The magnesium-contained high-silicon aluminum alloys for use as structural materials, including profiles, bars, sheets, and forgings, are manufactured by a process including the steps of: casting an alloy ingot by direct chill casting, preheating the ingot to disperse eutectic Si phase particles, and thermal-plastic processing and heat-treating to obtain the product with a final shape and a modified microstructure. The aluminum alloys contain 0.2˜2.0 wt % of Mg and 8˜18 wt % of Si, and have homogeneous and fine microstructure, wherein the aluminum matrix is equiaxed with an average grain size less than 6 μm, and the silicon and second phase particles are dispersed with an average size less than 5 μm. Without adding any modifiers, they are low-costly produced by incorporating the direct chill casting with thermal-plastic processing and heat treatment, which give rise to good plasticity and relatively high strength.
摘要翻译：用于结构材料的含镁高硅铝合金，包括型材，棒材，片材和锻件，通过包括以下步骤的方法制造：通过直接冷却铸造铸造合金锭，预热锭以分散共晶 Si相颗粒，热塑性加工和热处理，得到具有最终形状和改性微结构的产品。铝合金含有0.2〜2.0重量％的Mg和8〜18重量％的Si，并且具有均匀且精细的微观结构，其中铝基体的等轴晶粒尺寸小于6μm，硅和第二相颗粒以小于5μm的平均尺寸分散。没有添加任何改性剂，它们通过引入具有热塑性加工和热处理的直接冷却铸造而成本低廉，这导致良好的塑性和相对高的强度。

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