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    • 66. 发明授权
    • Sintered hard alloy of multiple boride containing iron
    • 含铁的多重硼化物的烧结硬质合金
    • US3999952A
    • 1976-12-28
    • US554326
    • 1975-02-28
    • Yoshikazu KondoTakeshi OkadaYoichi MinouraMichio Watanabe
    • Yoshikazu KondoTakeshi OkadaYoichi MinouraMichio Watanabe
    • C22C32/00C22C33/02B22F3/12
    • C22C32/0073C22C33/0228
    • This invention relates to a sintered alloy of a boride containing iron consisting essentially of a hard phase composed mainly of iron boride or a multiple boride containing iron in which a part of iron boride is substituted by a non-ferrous boride or multiple boride and a metal phase composed of at least one metal selected from Cu, Co, Ni, Fe, Cr, Mo, W, Ti, Zr, Hf, V, Nb, Ta and alloys composed mainly of these metals, wherein the boron content is 3 to 20% by weight, and to a method of making such sintered alloy. The sintered alloy of this invention has a hardness higher than that of high speed steel and has such high hardness and strength that it is comparable to alloys of cemented carbide, and it is characterized in that it has a good corrosion resistance at room temperature, a high oxidation resistance at high temperatures, a high hardness and a high strength, and that it is cheaper and lighter than cemented carbide. This invention provides a novel sintered high-hardness material which will take the place of cemented carbide or high speed steel.
    • 本发明涉及一种含有铁的硼化物的烧结合金,其主要由主要由铁硼化物组成的硬质相或含铁的多重硼化物组成,其中一部分铁硼化物被一种非晶合金硼化物或多个硼化物和一种金属 由选自Cu,Co,Ni,Fe,Cr,Mo,W,Ti,Zr,Hf,V,Nb,Ta中的至少一种金属和主要由这些金属组成的合金构成的相,其中硼含量为3〜20 %的重量,以及制造这种烧结合金的方法。 本发明的烧结合金的硬度比高速钢的硬度高,硬度和强度高,与硬质合金的合金相当,其特征在于:在室温下具有良好的耐腐蚀性, 在高温下具有高抗氧化性,高硬度和高强度,并且比硬质合金便宜且轻便。 本发明提供一种新型烧结高硬度材料,其代替硬质合金或高速钢。