Aluminum alloy-boron carbide composite material
    2.
    发明授权
    Aluminum alloy-boron carbide composite material 有权
    铝合金 - 碳化硼复合材料

    公开(公告)号:US07562692B2

    公开(公告)日:2009-07-21

    申请号:US10532188

    申请日:2003-10-24

    IPC分类号: B22D19/14

    摘要: A cast composite material is prepared by furnishing an aluminum-based matrix alloy and forming a mixture of free-flowing boron carbide particles and the aluminum-based matrix alloy in molten form which is stirred to wet the matrix alloy to the boron carbide particles and to distribute the particles throughout the volume of the melt. The molten mixture is then cast. The fluidity of the molten mixture is maintained by (a) maintaining the magnesium content of the matrix metal below about 0.2% by weight, or (b) starting with a matrix metal containing less than 0.2% by weight magnesium and adding further magnesium to the mixture a short time before casting, or (c) having at least 0.2% by weight titanium present in the mixture.

    摘要翻译: 通过提供铝基基质合金并形成熔融形式的自由流动的碳化硼颗粒和铝基基质合金的混合物来制备铸造复合材料,所述铝基基体合金被搅拌以将基体合金润湿至碳化硼颗粒,并且 将颗粒分散在整个体积的熔体中。 然后浇铸熔融混合物。 熔融混合物的流动性通过(a)将基质金属的镁含量维持在约0.2重量%以下来维持,或(b)从含有小于0.2重量%的镁的基质金属开始,并向镁 混合物在铸造之前很短时间,或(c)在混合物中存在至少0.2重量%的钛。