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93 条记录 (耗时 0.058 秒)

    Cast and forged gamma titanium aluminum alloys modified by boron, chromium, and tantalum
    31.
    发明授权
    Cast and forged gamma titanium aluminum alloys modified by boron, chromium, and tantalum 失效
    由硼，铬和钽改性的铸造和锻造γ钛铝合金

    公开(公告)号：US5324367A

    公开(公告)日：1994-06-28

    申请号：US044877

    申请日：1993-04-06

    申请人： Shyh-Chin Huang

    发明人： Shyh-Chin Huang

    IPC分类号： B22D21/00 ,  C22C14/00 ,  C22C49/04 ,  C22F1/00 ,  C22F1/18

    CPC分类号： C22C49/04

    摘要： A TiAl composition is prepared to have high strength, high oxidation resistance and to have acceptable ductility by altering the atomic ratio of the titanium and aluminum to have what has been found to be a highly desirable effective aluminum concentration and by addition of chromium and tantalum and boron ingredients according to the approximate formula Ti-Al.sub.46-50 Cr.sub.2 Ta.sub.2-4 B.sub.0.05-0.2. Homogenization of the composition above the alpha transus temperature is used in combination with the boron doping to achieve higher ductility without sacrifice of strength.

    摘要翻译： 制备TiAl组合物具有高强度，高抗氧化性，并且通过改变钛和铝的原子比具有可接受的延展性，已经发现已经发现是高度期望的有效铝浓度，并且通过添加铬和钽以及 硼成分按照公式Ti-Al46-50Cr2Ta2-4B0.05-0.2。 组合物高于α转化温度的均质化与硼掺杂组合使用以在不牺牲强度的情况下实现更高的延展性。

    Process of forming niobium and boron containing titanium aluminide
    32.
    发明授权
    Process of forming niobium and boron containing titanium aluminide 失效
    形成铌和硼的铝化铝的工艺

    公开(公告)号：US5082506A

    公开(公告)日：1992-01-21

    申请号：US589823

    申请日：1990-09-26

    申请人： Shyh-Chin Huang

    发明人： Shyh-Chin Huang

    IPC分类号： B22D27/20 ,  C22C1/02 ,  C22C14/00

    CPC分类号： C22C14/00

    摘要： A method for providing improved ductility in a castable gamma titanium aluminide is taught. The method involves adding inclusions of boron to the titanium aluminide containing higher concentrations of niobium and thermomechanically working the casting. Boron additions are made in concentrations between 0.5 and 2 atomic percent. Fine grain equiaxed microstructure is found from solidified melt. Property improvements are achieved by the thermomechanical processing.

    Niobium and chromium containing titanium aluminide rendered castable by boron inoculations
    33.
    发明授权
    Niobium and chromium containing titanium aluminide rendered castable by boron inoculations 失效
    含硼酸钡的铌和铬含量由BORON INOCULATIONS

    公开(公告)号：US5080860A

    公开(公告)日：1992-01-14

    申请号：US546973

    申请日：1990-07-02

    申请人： Shyh-Chin Huang

    发明人： Shyh-Chin Huang

    IPC分类号： C22C14/00

    CPC分类号： C22C14/00

    摘要： A method for providing improved castability in a gamma titanium aluminide is taught. The method involves adding inclusions of boron to the titanium aluminide containing chromium and niobium. Boron additions are made in concentrations between 0.5 and 2 atomic percent. Fine grain equiaxed microstructure is found from solidified melt. Property improvements are also achieved.

    摘要翻译： 教导了一种在γ钛化铝中提供改进的浇铸性能的方法。 该方法包括向含有铬和铌的钛铝化物中加入硼夹杂物。 加入硼的浓度为0.5至2原子％。 从凝固的熔体中发现细晶粒等轴晶化。 财产改善也得以实现。

    Silicon-modified titanium aluminum alloys and method of preparation
    35.
    发明授权
    Silicon-modified titanium aluminum alloys and method of preparation 失效
    硅改性钛铝合金及其制备方法

    公开(公告)号：US4836983A

    公开(公告)日：1989-06-06

    申请号：US138407

    申请日：1987-12-28

    申请人： Shyh-Chin Huang ,  Michael F. X. Gigliotti, Jr.

    发明人： Shyh-Chin Huang ,  Michael F. X. Gigliotti, Jr.

    IPC分类号： C22C14/00

    CPC分类号： C22C14/00

    摘要： A TiAl composition is prepared to have high strength and to have improved ductility by altering the atomic ratio of the titanium and aluminum to have what has been found to be a highly desirable effective aluminum concentration by addition of silicon according to the approximate formula Ti.sub.54-57 Al.sub.39-41 Si.sub.4-5.

    摘要翻译： 通过改变钛和铝的原子比来制备TiAl组合物以具有高强度并具有改善的延展性，以通过根据近似式Ti54-57Al39添加硅来发现已经发现是高度期望的有效铝浓度 -41Si4-5。

    Cold worked tri-nickel aluminide alloy compositions
    36.
    发明授权
    Cold worked tri-nickel aluminide alloy compositions 失效
    冷加工三镍铝合金组合物

    公开(公告)号：US4676829A

    公开(公告)日：1987-06-30

    申请号：US783723

    申请日：1985-10-03

    申请人： Keh-Minn Chang ,  Alan I. Taub ,  Shyh-Chin Huang

    发明人： Keh-Minn Chang ,  Alan I. Taub ,  Shyh-Chin Huang

    IPC分类号： C22C1/04 ,  C22C19/00 ,  C22C19/03 ,  C22C29/14

    CPC分类号： C22C19/007

    摘要： Improvements in the positive temperature dependence of yield strength and in the work hardening rate of tri-nickel aluminide base alloys are achieved. The novel alloy composition has seven alloying ingredients as follows:______________________________________ ConcentrationIngredient in Atomic %______________________________________Ni balanceCo 8-12Al 16-20Si 4-6Nb 0.26-0.30Zr 0.02-0.04B 0.2-0.7______________________________________The novel composition may be prepared by forming a melt of the composition and atomizing the melt with an inert gas to form fine particles with Ll.sub.2 type crystal structure. The powder is densified by heat and pressure to a novel alloy composition having the improvements in positive temperature dependence of yield strength and work hardening rate as noted above.

    摘要翻译： 实现了三镍铝基合金的屈服强度和加工硬化率的正温度依赖性的改善。 新型合金成分具有以下七种合金成分： - 浓度 - 原子％-Ni平衡-Co 8-12 -Al 16-20 -Si 4-6 - Nb 0.26-0.30 -Zr 0.02-0.04 -B 0.2- 0.7 - 可以通过形成组合物的熔体并用惰性气体雾化熔体以形成具有Ll2型晶体结构的细颗粒来制备新组合物。 通过热和压力将粉末致密化成如上所述具有改善屈服强度和加工硬化率的正温度依赖性的新型合金组合物。

    SYSTEM AND METHOD FOR DIRECTIONAL CASTING
    38.
    发明申请
    SYSTEM AND METHOD FOR DIRECTIONAL CASTING 有权
    用于方向铸造的系统和方法

    公开(公告)号：US20130032306A1

    公开(公告)日：2013-02-07

    申请号：US13198506

    申请日：2011-08-04

    申请人： Shyh-Chin Huang ,  Roger John Petterson

    发明人： Shyh-Chin Huang ,  Roger John Petterson

    IPC分类号： B22D27/04 ,  B22C9/00 ,  B22C19/04

    CPC分类号： B22D27/045 ,  B22D46/00

    摘要： A system and method for directionally casting an elongated device are provided. The method includes orienting a mold within a furnace such that a first portion of the mold points downward. The first portion of the mold defines a space within the mold used to form a first end of the device. The first end of the device, when formed, has a greater mass than a second end of the device. The method also includes filling the mold with molten metal and lowering the mold out of the furnace into a liquid metal bath to immerse the first portion of the mold in the liquid metal bath. The method includes concurrently lowering the mold and the liquid metal bath to cool the molten metal.

    摘要翻译： 提供了一种用于定向铸造细长装置的系统和方法。 该方法包括将模具定位在炉内，使得模具的第一部分向下指向。 模具的第一部分限定了用于形成装置的第一端的模具内的空间。 器件的第一端形成时具有比器件的第二端更大的质量。 该方法还包括用熔融金属填充模具并将模具从炉中放出到液态金属浴中以将模具的第一部分浸入液态金属浴中。 该方法包括同时降低模具和液态金属浴以冷却熔融金属。