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    • 2. 发明申请
    • HARD SINTERED ALLOY
    • 硬质合金
    • WO1998005802A1
    • 1998-02-12
    • PCT/JP1997002722
    • 1997-08-05
    • TOYO KOHAN CO., LTD.YAMAZAKI, YujiTAKAGI, Ken-ichiNAKANO, Kazunori
    • TOYO KOHAN CO., LTD.
    • C22C29/14
    • C22C32/0073C22C29/14
    • A hard sintered alloy having not only a wear resistance, a high corrosion resistance and a heat resistance but also a sufficiently high strength and a high tenacity in a wide temperature region from normal temperature to a high temperature is provided. In a sintered alloy comprising a hard phase containing mainly 35-95 % of Mo2NiB2 type complex boride, and a binding phase of hard phase binding Ni group constituting the rest, 0.1-8 % of Mn with respect to the whole composition is added, whereby a hard sintered alloy having a high strength, a high tenacity and a high corrosion resistance is obtained. Furthermore, the addition of W serves to further improve the wear resistance and mechanical characteristics, the addition of Cr and/or V the corrosion resistance and mechanical characteristics, the addition of Cu the corrosion resistance, the addition of Co the oxidation resistance and high temperature characteristics, and the addition of Nb, Zr, Ti, Ta and Hf the mechanical characteristics and corrosion resistance.
    • 提供了一种硬烧结合金,其具有不仅耐磨性,高耐腐蚀性和耐热性,而且在常温至高温的宽温度区域中具有足够高的强度和高韧性。 在包含主要含有35-95%的Mo2NiB2型复合硼化物的硬质相和构成其余部分的硬相结合Ni基的结合相的烧结合金中,加入相对于整个组合物的0.1-8%的Mn,由此 获得具有高强度,高强度和高耐腐蚀性的硬质烧结合金。 此外,W的添加用于进一步提高耐磨性和机械性能,添加Cr和/或V的耐腐蚀性和机械特性,加入Cu的耐腐蚀性,加入Co的抗氧化性和高温 特性,并添加Nb,Zr,Ti,Ta和Hf的机械特性和耐腐蚀性。