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    • 1. 发明授权
    • High strength titanium alloy, product made of the titanium alloy and
method for producing the product
    • 高强度钛合金,钛合金制品及其制造方法
    • US5885375A
    • 1999-03-23
    • US952511
    • 1997-11-28
    • Atsushi TakemuraHachiro KushidaNorio HashimotoTadao EnomotoHideo Taguchi
    • Atsushi TakemuraHachiro KushidaNorio HashimotoTadao EnomotoHideo Taguchi
    • C22C14/00C22F1/18
    • C22F1/183C22C14/00
    • The present invention provides a high strength titanium alloy useful as a material for products such as ornaments, products such as ornaments made of the titanium alloy, and a method for producing the products using the titanium alloy as a material. The high strength titanium alloy is capable of attaining high machinability, and the product made of the titanium alloy is excellent in beauty and decorativeness while being hard to made flawed or concaved. According to the present invention, the titanium alloy includes iron of 0.20 to 0.8 mass percent and oxygen of 0.20 to 0.6 mass percent, or iron of 0.2 to 1.0 mass percent, oxygen of 0.15 to 0.6 mass percent and silicon of 0.20 to 1.0 mass percent, with the balance of titanium and inevitable impurities. A method for producing a product using the titanium alloy as a material includes a steps of hot forging the titanium alloy at a temperature of (.beta.-transformation temperature -200.degree. C.) or higher, and then cooling it, thereby giving a high strength to the product.
    • PCT No.PCT / JP97 / 01023 Sec。 371日期1997年11月28日 102(e)日期1997年11月28日PCT 1997年3月26日PCT公布。 第WO97 / 37049号公报 日期:1997年10月9日本发明提供可用作诸如装饰品的产品的材料的高强度钛合金,以及由钛合金制成的饰品等制品,以及使用该钛合金作为材料的制品的制造方法。 高强度钛合金能够获得高切削性,并且由钛合金制成的产品在美观和装饰性方面优异,同时难以制造有缺陷或凹陷。 根据本发明,钛合金含有0.20〜0.8质量%的铁,0.20〜0.6质量%的氧,0.2〜1.0质量%的铁,0.15〜0.6质量%的氧,0.20〜1.0质量%的硅, ,余量为钛和不可避免的杂质。 使用钛合金作为材料的产品的制造方法包括在(β-转变温度-200℃)以上的温度下热锻钛合金的工序,然后冷却,得到高强度 到产品。