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    • 8. 发明申请
    • ALLOYS
    • 合金
    • WO2009153596A2
    • 2009-12-23
    • PCT/GB2009050692
    • 2009-06-17
    • UNIV SHEFFIELDTSAKIROPOULOS PANOS
    • TSAKIROPOULOS PANOS
    • C22C27/02
    • C22C27/02
    • A first multi phase niobium silicide alloy composition consists essentially of: from 15 to 24 at% of Si; from 0 to 25 at% of one or more sp outer electron configuration element which is not Si; from 1 to 26 at% of one or more sd outer electron configuration element which is not Nb; and a balance of Nb, interstitials and impurities. This alloy may be used to increase the creep resistance of an article, for example a gas turbine engine blade. A second multi phase niobium silicide alloy composition consists essentially of: from 1 to 24 at% of Si; from 0 to 34 at% of one or more sp outer electron configuration element which is not Si; from 19.5 to 48.5 at% of one or more sd outer electron configuration element which is not Nb or Cr; from 0.5 to 9 at% Cr; and a balance of Nb, interstitials and impurities. This alloy may be used to increase the creep resistance and/or to increase the oxidation resistance of an article, for example a gas turbine engine blade.
    • 第一多相铌硅化物合金组合物基本上由以下组成:15至24at%的Si; 0〜25at%的不是Si的一种或多种sp外电子构型元素; 1〜26at%的不是Nb的一个或多个sd外部电子构造元素; 以及Nb,间隙和杂质的平衡。 该合金可用于增加制品(例如燃气涡轮发动机叶片)的抗蠕变性。 第二多相铌硅化物合金组合物基本上由1至24at%的Si组成; 0〜34at%的不是Si的一种或多种sp外电子构型元素; 一个或多个不是Nb或Cr的sd外部电子构造元素的19.5至48.5at%; 0.5至9原子%Cr; 以及Nb,间隙和杂质的平衡。 该合金可用于增加制品(例如燃气涡轮发动机叶片)的抗蠕变性和/或增加抗氧化性。