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    • 84. 发明授权
    • Cu-base amorphous alloy
    • 铜基非晶合金
    • US07399370B2
    • 2008-07-15
    • US10525738
    • 2003-06-12
    • Akihisa InoueWei Zhang
    • Akihisa InoueWei Zhang
    • C22C45/00
    • C22C45/001C22C1/002
    • To provide a Cu-based amorphous alloy having a glass-forming ability higher than that of a Cu—Zr—Ti amorphous alloy and a Cu—Hf—Ti amorphous alloy, as well as excellent workability and excellent mechanical properties without containing large amounts of Ti.A Cu-based amorphous alloy characterized by containing 90 percent by volume or more of amorphous phase having a composition represented by Formula: Cu100-a-b(Zr,Hf)a(Al,Ga)b [in Formula, a and b are on an atomic percent basis and satisfy 35 atomic percent≦a≦50 atomic percent and 2 atomic percent≦b≦10 atomic percent], wherein the temperature interval ΔTx of supercooled liquid region is 45 K or more, the temperature interval being represented by Formula ΔTx=Tx−Tg (where Tx represents a crystallization initiation temperature and Tg represents a glass transition temperature.), a rod or a sheet having a diameter or thickness of 1 mm or more and a volume fraction of amorphous phase of 90% or more can be produced by a metal mold casting method, the compressive strength is 1,900 MPa or more, the Young's modulus is 100 GPa or more, and the Vickers hardness is 500 Hv or more.
    • 为了提供具有比Cu-Zr-Ti非晶合金和Cu-Hf-Ti非晶合金高的玻璃形成能力的Cu基非晶合金,以及优异的可加工性和优异的机械性能,而不含大量的 钛 一种Cu基非晶态合金,其特征在于含有90体积%以上的非晶相,其具有式:Cu 100-ab(Zr,Hf)a(a) Al,Ga)b在式中,a和b以原子百分比为基准,并且满足35原子百分比<= a <= 50原子%和2原子%<= b <= 10原子% ],其中过冷液体区域的温度区间DeltaTx为45K以上,温度区间由式DeltaTx = Tx-Tg(其中Tx表示结晶起始温度,Tg表示玻璃化转变温度)表示,棒或 可以通过金属模铸法制造具有1mm以上的直径或厚度,非晶相的体积分率为90%以上的片材,抗压强度为1900MPa以上,杨氏模量为100GPa, 维氏硬度为500Hv以上。
    • 90. 发明授权
    • Highly-ductile nano-particle dispersed metallic glass and production method therefor
    • 高韧性纳米颗粒分散金属玻璃及其制备方法
    • US06652679B1
    • 2003-11-25
    • US09856166
    • 2001-10-26
    • Akihisa InoueTao Zhang
    • Akihisa InoueTao Zhang
    • C22C4510
    • B22D27/09C22C45/10Y10S977/773Y10S977/81Y10S977/84Y10S977/90Y10T29/301
    • The present invention intends to provide a production method for a highly reliable bulk metallic glass of a high cold draft of 70% or more, and better post-cold working mechanical properties than those of the metallic glass being cast. The bulk metallic glass is obtained by pressing and expanding an alloy melt of composition capable of being glassified between the cooled upper and lower molds, which are highly heat-conductive water-cooled molds, so as to apply pressure to the melt while it is solidified. Nano-particles are thus dispersed in the amorphous phase of the metallic glass, thereby obtaining a metallic glass with nano-particles dispersed in its amorphous phase. The metallic glass with nano-particles of such a high ductility is further cold worked, for example by rolling to make the final product.
    • 本发明旨在提供一种具有70​​%以上的高冷拔风的高度可靠的散装金属玻璃的制造方法,以及比铸造的金属玻璃更好的后冷加工机械性能的制造方法。 大块金属玻璃是通过在冷却的上下模具之间压制和膨胀能够被玻璃化的组合物的合金熔体而获得的,这是高度导热的水冷模具,以便在固化时向熔体施加压力 。 因此,纳米粒子分散在金属玻璃的无定形相中,从而获得在其非晶相中分散有纳米粒子的金属玻璃。 具有如此高延展性的纳米颗粒的金属玻璃被进一步冷加工,例如通过轧制以制成最终产品。