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钨合金的应用有着广泛的发展前景,从体育用品到海洋石油钻井。它比纯钨易于机械加工,抗拉强度比碳钢高,约为黄铜和铸铁的两倍。热膨胀系数低,耐腐蚀性好,并可达到机械加工所允许的公差。制备合金时,在纯钨粉中加进镍、铜和铁粉,混合后经机械或液压机压制成型,并在温度约1400℃的氢气氛中烧结。较大的零件用等静压制成型。
The application of tungsten alloy has a wide range of development prospects, from sporting goods to offshore oil drilling. It is easier to machine than pure tungsten and has a higher tensile strength than carbon steel, about twice that of brass and cast iron. Low coefficient of thermal expansion, good corrosion resistance, and to the tolerances allowed by machining. In the preparation of the alloy, nickel, copper and iron powder are added to the pure tungsten powder, mixed and then press-molded by a mechanical or hydraulic press and sintered in a hydrogen atmosphere at a temperature of about 1,400 ° C. Larger parts are formed by isostatic pressing.