PLATINUM GROUP BOND COAT MODIFIED FOR DIFFUSION CONTROL

    公开(公告)号:US20080102306A1

    公开(公告)日:2008-05-01

    申请号:US11553515

    申请日:2006-10-27

    IPC分类号: B32B15/04

    摘要: A modified platinum group metal coating composition comprising a phase having a solid solution face-centered cubic (fcc) crystal structure, rich in platinum group materials. In order to be effective, the platinum group metal coating material was modified based on the chemical composition and chemical activity of the substrate material. The platinum group metal coating material was modified to include, in solid solution, elements of the superalloy substrate, specifically nickel (Ni) and cobalt (Co). Depending on the substrate material, the modified platinum group metal coating material may not even include Ni or Co, but may be modified to include amounts of different elements that are consistent with the chemical composition of the substrate. The modified platinum metal coating material also includes aluminum (Al). The composition may include small amounts of a second phase isolated within the fcc phase matrix.

    摘要翻译: 一种改性的铂族金属涂料组合物,其包含具有固溶体面心立方(fcc)晶体结构的相,富含铂族材料。 为了有效,基于基板材料的化学成分和化学活性来改变铂族金属涂层材料。 将铂族金属涂层材料改性为在固溶体中包括超合金基材的元素,特别是镍(Ni)和钴(Co)。 根据基板材料,改性的铂族金属涂层材料可能甚至不包括Ni或Co,但可被修饰为包括与基材的化学组成一致的不同元素的量。 改性的铂金属涂层材料还包括铝(Al)。 组合物可以包括在fcc相基质内分离的少量第二相。

    Ceramic molds for manufacturing metal casting and methods of manufacturing thereof
    5.
    发明申请
    Ceramic molds for manufacturing metal casting and methods of manufacturing thereof 审中-公开
    用于制造金属铸件的陶瓷模具及其制造方法

    公开(公告)号:US20070089849A1

    公开(公告)日:2007-04-26

    申请号:US11256823

    申请日:2005-10-24

    IPC分类号: B22C9/04 B22C1/00

    CPC分类号: B22C9/04 B22C1/18

    摘要: Disclosed herein is a method comprising disposing a gel casting composition between an outer die and a wax pattern; wherein the wax pattern is a replica of a desired casting; reacting the gel casting composition to form a gel matrix; removing the wax pattern; extracting a solvent from the gel matrix to form a dried gel; and firing the dried gel to form a gel cast mold. Disclosed herein too is a method comprising disposing a gel casting composition between an outer die and a wax pattern; wherein the wax pattern is a replica of a turbine component; reacting the gel casting composition to form a gel matrix; removing the wax pattern; extracting a solvent from the gel matrix to form a dried gel; and firing the dried gel to form a gel cast mold.

    摘要翻译: 本文公开了一种方法,包括在外模和蜡图案之间设置凝胶浇铸组合物; 其中蜡图案是所需铸件的复制品; 使凝胶浇铸组合物反应形成凝胶基质; 去除蜡样; 从凝胶基质中提取溶剂以形成干凝胶; 并焙烧干燥的凝胶以形成凝胶浇铸模具。 本文还公开了一种方法,包括在外模和蜡图之间设置凝胶浇铸组合物; 其中蜡图案是涡轮机部件的复制品; 使凝胶浇铸组合物反应形成凝胶基质; 去除蜡样; 从凝胶基质中提取溶剂以形成干凝胶; 并焙烧干燥的凝胶以形成凝胶浇铸模具。

    Method for producing a titanium-base alloy having an oxide dispersion therein
    8.
    发明申请
    Method for producing a titanium-base alloy having an oxide dispersion therein 失效
    一种其中具有氧化物分散体的钛基合金的制造方法

    公开(公告)号:US20070044870A1

    公开(公告)日:2007-03-01

    申请号:US11351226

    申请日:2006-02-09

    IPC分类号: C22C14/00

    摘要: A metallic article is prepared by first furnishing at least one nonmetallic precursor compound, wherein all of the nonmetallic precursor compounds collectively containing the constituent elements of the metallic article in their respective constituent-element proportions. The constituent elements together form a titanium-base alloy having a stable-oxide-forming additive element therein, such as magnesium, calcium, scandium, yttrium, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium, and mixtures thereof. The stable-oxide-forming additive element forms a stable oxide in a titanium-based alloy. At least one additive element is present at a level greater than its room-temperature solid solubility limit in the titanium-base alloy. The precursor compounds are chemically reduced to produce an alloy material, without melting the alloy material. The alloy material may be consolidated. The alloy material, or consolidated metallic article, is thereafter desirably exposed to an oxygen-containing environment at a temperature greater than room temperature.

    摘要翻译: 通过首先提供至少一种非金属前体化合物制备金属制品,其中所有非金属前体化合物以其各自的构成元素比例共同含有金属制品的组成元素。 组成元素一起形成其中具有稳定氧化物形成添加元素的钛基合金,例如镁,钙,钪,钇,镧,铈,镨,钕,ium,钐,铕,钆,铽,镝 ,钬,铒,ium,镱和镥,及其混合物。 稳定氧化物形成添加元素在钛基合金中形成稳定的氧化物。 在钛基合金中,至少一种添加元素的含量大于其室温固溶度极限。 前体化合物被化学还原以产生合金材料,而不熔化合金材料。 合金材料可以被固结。 之后,合金材料或固结的金属制品在大于室温的温度下暴露于含氧环境中。

    CASTING PROCESSES, CASTING APPARATUSES THEREFOR, AND CASTINGS PRODUCED THEREBY
    10.
    发明申请
    CASTING PROCESSES, CASTING APPARATUSES THEREFOR, AND CASTINGS PRODUCED THEREBY 有权
    铸造工艺,其铸造设备及其生产的铸件

    公开(公告)号:US20100304161A1

    公开(公告)日:2010-12-02

    申请号:US12474475

    申请日:2009-05-29

    CPC分类号: B22D27/045

    摘要: A casting process and apparatus for producing directionally-solidified castings, and castings produced therewith. The process entails applying a facecoat slurry to a surface within a mold cavity to form a continuous solid facecoat on the surface, introducing a molten metal alloy into the mold cavity so that the molten metal alloy contacts the facecoat, and then immersing the mold in a liquid coolant to cool and solidify the molten metal alloy and form a casting of the metal alloy, during which an oxide layer forms on the casting surface. The facecoat is sufficiently adherent to the oxide layer such that at least a portion of the facecoat detaches from the mold surface and remains tightly adhered to the casting surface in the event the casting contracts during cooling. The facecoat contains at least 60 weight percent of a first phase of yttria, and the balance of the facecoat is a binder phase of an inorganic material.

    摘要翻译: 用于生产定向凝固铸件的铸造工艺和设备,以及由其制造的铸件。 该方法需要将表面涂层浆料施加到模腔内的表面以在表面上形成连续的实心面涂层,将熔融金属合金引入模腔中,使得熔融金属合金接触面涂层,然后将模具浸入 液体冷却剂以冷却和固化熔融金属合金,并形成金属合金的铸件,在此期间在铸造表面上形成氧化物层。 表面涂层与氧化物层充分贴合,使得至少一部分正面涂层在模具表面脱离并在冷却期间铸件收缩的情况下保持紧密地粘附于铸造表面。 面涂层含有至少60重量%的第一相的氧化钇,其余的表面涂层是无机材料的粘结相。