Heat resistant aluminum alloy excellent in tensile strength, ductility
and fatigue strength
    1.
    发明授权
    Heat resistant aluminum alloy excellent in tensile strength, ductility and fatigue strength 失效
    耐热铝合金抗拉强度,延展性和疲劳强度优异

    公开(公告)号:US4992117A

    公开(公告)日:1991-02-12

    申请号:US340124

    申请日:1989-04-18

    IPC分类号: C22C21/00 C22C45/08

    CPC分类号: C22C45/08

    摘要: The present invention provides a heat resistant alloy having a composition consisting essentially of, in weight percentages, 4 to 12% of Fe, 1 to less than 4.0% of Si, 1 to 6% of Cu, 0.3 to 3% of Mg, and the balance aluminum and incidental impurities. The aluminum alloy may further contain one or more elements selected from 0.5 to 5 wt. % of V, 0.5 to 5 wt. % of Mo and 0.4 to 4 wt. % of Zr, the total content of these components not exceeding 8 wt. %. Since the heat-resistant aluminum alloys have a superior combination of properties of high tensile strength, good ductility and high fatigue strength at elevated temperatures up to 200.degree. C. as well as moderate temperatures, they can be applied to structural members, such as connecting rods, of internal combustion engines, thereby considerably reducing the weight of such structural components. The use of the alloys results in an increased output power and high efficiency in the internal combustion engines.

    摘要翻译: 本发明提供一种耐热合金,其组成主要由以下组成组成:重量百分比:Fe的4〜12%,Si:1〜小于4.0%,Cu:1〜6%,Mg:0.3〜3% 余量为铝和杂质。 该铝合金还可含有一种或多种选自0.5至5wt。 V%,0.5〜5wt。 的Mo和0.4〜4wt。 %的Zr,这些组分的总含量不超过8wt。 %。 由于耐热铝合金在高达200℃和中等温度的高温下具有高抗拉强度,良好的延展性和高疲劳强度的优异组合,因此它们可以应用于结构构件,例如连接 内燃机的杆,从而大大减少了这种结构部件的重量。 使用合金可以提高内燃机的输出功率和高效率。

    High strength material produced by consolidation of rapidly solidified
aluminum alloy particulates
    3.
    发明授权
    High strength material produced by consolidation of rapidly solidified aluminum alloy particulates 失效
    通过固化快速固化的铝合金颗粒产生的高强度材料

    公开(公告)号:US4676830A

    公开(公告)日:1987-06-30

    申请号:US763373

    申请日:1985-08-07

    IPC分类号: C22C21/00 C22F1/00 C22C1/00

    CPC分类号: C22F1/002

    摘要: A superior high-temperature strength aluminum alloy material is produced by consolidating rapdily solidified particulates of an aluminum alloy into a desired configuration, the aluminum alloy consisting of, in weight percentages, 4 to 15% Fe, and 0.5 to 8% V and the balance being essentially aluminum. The aluminum alloy may further contain at least one element selected from the group consisting of 0.5 to 8% Mo, 0.5 to 8% Ni, 0.3 to 8% Zr and 0.5 to 8% Ti and these additional components develop a further increased strength in the resulting formed materials. Since the consolidated aluminum materials above specified have a superior strength at high temperatures as well as moderate temperature without an expensive Ce, they are highly useful as economical heat-resistant materials for various applications, particularly for the fields where high strength at high temperatures and lightness of weight are required.

    摘要翻译: 通过将铝合金的强力固化的微粒固结成所需的形状来制造出优良的高温强度的铝合金材料,铝合金以重量比为4〜15%的Fe和0.5〜8%的V,余量为 基本上是铝。 铝合金还可以含有选自0.5〜8%Mo,0.5〜8%Ni,0.3〜8%Zr和0.5〜8%Ti中的至少一种元素,这些附加成分在 形成的材料。 由于上述规定的固结铝材料在高温以及中等温度下具有优异的强度,而没有昂贵的Ce,因此它们作为用于各种应用的经济耐热材料是非常有用的,特别是在高温高亮度和高亮度的领域 的重量是必需的。

    Product of a halogen containing Ti-Al system intermetallic compound
having a superior oxidation and wear resistance
    5.
    发明授权
    Product of a halogen containing Ti-Al system intermetallic compound having a superior oxidation and wear resistance 失效
    具有优异的耐氧化性和耐磨性的含卤素Ti-Al系金属间化合物的产品

    公开(公告)号:US5451366A

    公开(公告)日:1995-09-19

    申请号:US91601

    申请日:1993-07-13

    IPC分类号: C22C1/04 C22C14/00 C23C8/10

    CPC分类号: C23C8/10 C22C1/0491 C22C14/00

    摘要: A Ti--Al system intermetallic compound comprised of 25 at. % to 75 at. % of aluminum and the remainder of titanium. The compound includes 0.004 at. % to 1.0 at. % each of at least one halogen element selected from the group consisting of fluorine, chlorine, bromine and iodine. Alternatively, to provide a Ti--Al system intermetallic compound with oxidation resistance, the surface of the Ti--Al system intermetallic compound is heated to 800.degree. C. to 1125.degree. C. in a mixture of gas including 2 ppm to 1% by volume of at least one halogen element selected from the group consisting of fluorine, chlorine, bromine and iodine, and also including 0.1% by volume or more of oxygen. Thus, a dense aluminum oxide film is formed on the surface of the intermetallic compound. Alternatively, to form the dense aluminum oxide film, at least one halogen element is first disposed on the part providing the oxidation resistance of the intermetallic compound, and heated for 0.2 hour or longer at 800.degree. C. to 1125.degree. C. In this case, the halogen amount should be between 0.002 mol/m.sup.2 and 2 mol/m.sup.2.

    摘要翻译: Ti-Al系金属间化合物由25个 %至75 at。 铝的百分比和其余的钛。 该化合物包括0.004at。 %至1.0 at。 至少一种选自氟,氯,溴和碘的卤素元素的%。 或者,为了提供具有抗氧化性的Ti-Al系金属间化合物,将Ti-Al系金属间化合物的表面在包括2ppm至1体积%的气体混合物中加热至800℃至1125℃ 的至少一种选自氟,氯,溴和碘的卤素元素,并且还包括0.1体积%或更多的氧。 因此,在金属间化合物的表面上形成致密的氧化铝膜。 或者,为了形成致密的氧化铝膜,首先在提供金属间化合物的抗氧化性的部分上设置至少一种卤素元素,并在800℃〜1125℃下加热0.2小时以上。在这种情况下 卤素量应在0.002mol / m2和2mol / m2之间。

    Powder processing of titanium aluminide having superior oxidation
resistance
    6.
    发明授权
    Powder processing of titanium aluminide having superior oxidation resistance 失效
    具有优异抗氧化性的钛化铝粉末加工

    公开(公告)号:US5372663A

    公开(公告)日:1994-12-13

    申请号:US821154

    申请日:1992-01-03

    摘要: Ti powders and Al powders are combined to prepare a mixture of 40.about.55 at % of Al and the balance of Ti. After CIP and degassing, plastic working by hot extrusion is applied to form a shaped mixture of Ti and Al. The shaped mixture is then processed by HIP to synthesize titanium aluminide while diffusing Al into the Ti structure to form an Al.sub.2 O.sub.3 phase occurring from both the reaction between Al and oxygen contained in the Ti structure and the oxides on the Al surface, and to disperse the Al.sub.2 O.sub.3 to form the Al.sub.2 O.sub.3 protective film. With the reaction between Al and oxygen contained in the Ti structure and with the "Pegging" effect, both the Al.sub.2 O.sub.3 a phase formed at the grain boundaries of crystals or in the crystal grains of titanium aluminide and the Al.sub.2 O.sub.3 phase existing on the surface of raw material Al powder peg the surface Al.sub.2 O.sub.3 film to the surface of the titanium aluminide body. This "Pegging" effect enhances the adhesiveness of the film and improves the oxidation resistance of titanium aluminide.

    摘要翻译: 将Ti粉末和Al粉末组合以制备40%Al的Al%和余量的混合物。 在CIP和脱气之后,通过热挤压进行塑性加工以形成Ti和Al的成型混合物。 然后通过HIP处理成型的混合物以合成钛酸铝,同时将Al扩散到Ti结构中,以形成Al和Ti的结构中Al和Al之间的氧化物和Al表面上的氧化物的分解, Al2O3形成Al2O3保护膜。 通过Ti结构中包含的Al和氧的反应以及“Pegging”效应,Al 2 O 3 a相在晶体的晶界或AlAl 2晶相中形成的Al 2 O 3相存在于原料的表面上 材料Al粉末将表面的Al2O3膜与铝化钛体的表面接合。 这种“钉住”效果提高了膜的粘合性,并提高了铝化钛的抗氧化性。