Nickel based superalloy
    3.
    发明申请
    Nickel based superalloy 审中-公开
    镍基超级合金

    公开(公告)号:US20070059550A1

    公开(公告)日:2007-03-15

    申请号:US11446168

    申请日:2006-06-05

    Abstract: A nickel based single crystal superalloy comprising 7-9 wt % cobalt, 3.5-4.5 wt % chromium, 0-2.4 wt % molybdenum, 4-8 wt % tungsten, 3.5-6 wt % rhenium, 5-6.5 wt % aluminium, 6.5-8.5 wt % tantalum, 0-0.2 wt % hafnium and the balance nickel plus incidental impurities. The nickel based single crystal superalloy is suitable for use as a gas turbine engine turbine blade or turbine vane. It is of particular us on cooled turbine blades and turbine vanes which have ceramic thermal barrier coatings, because the superalloy is compatible with the ceramic thermal barrier coating to minimise spalling. The superalloy has better mechanical properties than other second-generation single crystal superalloys and has better creep strength and oxidation resistance.

    Abstract translation: 镍基单晶超合金,其包含7-9重量%的钴,3.5-4.5重量%的铬,0-2.4重量%的钼,4-8重量%的钨,3.5-6重量%的铼,5-6.5重量%的铝,6.5 -8.5重量%的钽,0-0.2重量%的铪和余量的镍加附加的杂质。 镍基单晶超合金适用于燃气轮机发动机涡轮叶片或涡轮叶片。 特别是在具有陶瓷热障涂层的冷却涡轮机叶片和涡轮机叶片上,因为超级合金与陶瓷热障涂层相容,以使剥落最小化。 超合金具有比其他第二代单晶超合金更好的机械性能,具有更好的抗蠕变强度和抗氧化性。

    Buffer architecture for biaxially textured structures and method of fabricating same
    8.
    发明授权
    Buffer architecture for biaxially textured structures and method of fabricating same 失效
    用于双轴织构结构的缓冲结构及其制造方法

    公开(公告)号:US06716795B2

    公开(公告)日:2004-04-06

    申请号:US09406190

    申请日:1999-09-27

    Abstract: The invention relates to an article with an improved buffer layer architecture comprising a substrate having a metal surface, and an epitaxial buffer layer on the surface of the substrate. The epitaxial buffer layer comprises at least one of the group consisting of ZrO2, HfO2, and compounds having at least one of Ca and a rare earth element stabilizing cubic phases of ZrO2 and/or HfO2. The article can also include a superconducting layer deposited on the epitaxial buffer layer. The article can also include an epitaxial capping layer between the epitaxial buffer layer and the superconducting layer. A method for preparing an epitaxial article comprises providing a substrate with a metal surface, depositing on the metal surface an epitaxial buffer layer comprising at least one material selected from the group consisting of ZrO2, HfO2, and compounds having at least one of Ca and a rare earth element stabilizing cubic phases of at least one of ZrO2 and HfO2. The epitaxial layer depositing step occurs in a vacuum with a background pressure of no more than 1×10−5 Torr. The method can further comprise depositing a superconducting layer on the epitaxial layer, and depositing an epitaxial capping layer between the epitaxial buffer layer and the superconducting layer.

    Abstract translation: 本发明涉及一种具有改进的缓冲层结构的制品,其包括具有金属表面的基底和在基底表面上的外延缓冲层。 外延缓冲层包括由ZrO 2,HfO 2和具有稳定立方相的ZrO 2和/或HfO 2的Ca和稀土元素中的至少一种的化合物中的至少一种。 该物品还可以包括沉积在外延缓冲层上的超导层。 该制品还可以包括在外延缓冲层和超导层之间的外延覆盖层。 一种用于制备外延物品的方法包括:向基底提供金属表面;在所述金属表面上沉积包含至少一种选自ZrO 2,HfO 2和至少一种Ca和 稀土元素稳定ZrO 2和HfO 2中的至少一种的立方相。 外延层沉积步骤在背景压力不超过1×10 -5乇的真空中进行。 该方法还可以包括在外延层上沉积超导层,以及在外延缓冲层和超导层之间沉积外延覆盖层。

    Gas turbine for power generation
    9.
    发明授权
    Gas turbine for power generation 有权
    用于发电的燃气轮机

    公开(公告)号:US06574966B2

    公开(公告)日:2003-06-10

    申请号:US10124406

    申请日:2002-04-18

    Abstract: A gas turbine for power generation operated at a turbine nozzle inlet temperature ranging from 1200 to 1650° C., which is improved to obtain a high heat efficiency by making disk blades and nozzles arranged in first to final stages from optimum materials and optimally cooling these disk blades and nozzles, and to obtain a combined power generation system using the gas turbine. The combined power generation system includes a highly efficient gas turbine operated at a turbine nozzle inlet combustion gas temperature ranging from 1200 to 1650° C., and a high pressure-intermediate pressure-low pressure integral type steam turbine operated at a steam inlet temperature of 530° C. or more, wherein the gas turbine is configured such that turbine blades, nozzles and disks are each cooled, and the blades and nozzles are each made from an Ni-based alloy having a single crystal or columnar crystal structure and disks are made from a martensite steel.

    Abstract translation: 用于发电的燃气轮机在1200至1650℃的涡轮喷嘴入口温度下运行,其通过使盘片和喷嘴从最佳材料的第一到最后阶段排列而最佳地冷却,从而获得高的热效率 磁盘叶片和喷嘴,并且获得使用燃气轮机的组合发电系统。组合发电系统包括在涡轮喷嘴入口燃烧气体温度范围为1200至1650℃的高效燃气轮机和高 在530℃或更高的蒸气入口温度下工作的压力 - 中压低压一体式蒸汽轮机,其中燃气轮机被构造成使得涡轮机叶片,喷嘴和盘都被冷却,并且叶片和喷嘴各自 由具有单晶或柱状晶体结构的Ni基合金制成,圆盘由马氏体钢制成。

    Method for making sheet metal components with textured surfaces
    10.
    发明申请
    Method for making sheet metal components with textured surfaces 失效
    用于制造具有纹理表面的金属片组件的方法

    公开(公告)号:US20020117238A1

    公开(公告)日:2002-08-29

    申请号:US09792106

    申请日:2001-02-26

    Abstract: Pre-straining and thermal recrystallization processes for maximizing formability in SPF sheet alloys of aluminum, magnesium, iron and titanium can be modified to form sheet products with roughened or textured surfaces for low-slip applications or coating adherence or decorative applications. By determination of suitable pre-strain levels and recrystallization/forming temperatures for s sheet metal stock, relatively large grained microstructures are formed in the sheet that yield useful surface texture during forming.

    Abstract translation: 可以对用于铝,镁,铁和钛的SPF板合金中的最大化成形性的预应变和热再结晶过程进行改性,以形成具有粗糙或纹理表面的片材产品,用于低滑动应用或涂层粘附或装饰应用。 通过确定钣金原料的合适的预应变水平和重结晶/成形温度,在片材中形成相对较大的晶粒微观结构,其在成形期间产生有用的表面纹理。

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