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    • 7. 发明授权
    • High-strength, high-damping metal material and method of making the same
    • 高强度,高阻尼金属材料及其制造方法
    • US06346132B1
    • 2002-02-12
    • US09595359
    • 2000-06-15
    • Ulrike HuberRainer RauhEduard Arzt
    • Ulrike HuberRainer RauhEduard Arzt
    • B22F102
    • B22F1/0003B22F2998/00C22C1/0416C22C49/06C22F1/006B22F3/14B22F3/15B22F3/17B22F3/20C22C47/14
    • A composite material includes a metallic second phase dispersed in a metallic matrix material. The metallic second phase has a grain structure that is at least partially martensitic. The second phase material is preferably an alloy of nickel and titanium, each present in the range from 48 to 52 atomic %, optionally in combination with further additives. The second phase particles can be present in the form of granular particles, wires, fibers, whiskers, or layers, making up 5 to 60 vol. % of the overall composite material. The matrix material is preferably an aluminum alloy. The composite material has a high damping capacity and a high tensile strength provided by the matrix, and a high damping capacity provided by the second phase. A method of making the composite material involves mixing a powdery matrix material and a powdery second phase material, and then heat and consolidating the mixture at a temperature of 400 to 700 ° C. and a pressure of 100 to 300 MPa.
    • 复合材料包括分散在金属基体材料中的金属第二相。 金属第二相具有至少部分马氏体的晶粒结构。 第二相材料优选为镍和钛的合金,各自存在于48至52原子%的范围内,任选地与其它添加剂组合。 第二相颗粒可以粒状颗粒,电线,纤维,晶须或层的形式存在,构成5至60体积%。 %的整体复合材料。 基质材料优选为铝合金。 复合材料具有高的阻尼能力和由基体提供的高拉伸强度,以及由第二相提供的高阻尼能力。 制造复合材料的方法包括混合粉末状基体材料和粉末状第二相材料,然后在400-700℃的温度和100-300MPa的压力下加热和固结混合物。