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    Beta-phase nickel aluminide overlay coatings and process therefor
    3.
    发明授权
    Beta-phase nickel aluminide overlay coatings and process therefor 有权
    β相镀镍及其制备方法

    公开(公告)号：US07150922B2

    公开(公告)日：2006-12-19

    申请号：US10248056

    申请日：2002-12-13

    申请人： Irene Spitsberg ,  Joseph David Rigney ,  Ramgopal Darolia ,  Elissa Hae-Kyung Lee ,  Jeffrey Allan Pfaendtner

    发明人： Irene Spitsberg ,  Joseph David Rigney ,  Ramgopal Darolia ,  Elissa Hae-Kyung Lee ,  Jeffrey Allan Pfaendtner

    IPC分类号： B32B15/04 ,  F03B3/12

    CPC分类号： C23C28/321 ,  C21D7/06 ,  C23C4/18 ,  C23C8/02 ,  C23C26/00 ,  C23C28/345 ,  C23C28/3455 ,  Y10T428/12611 ,  Y10T428/12736 ,  Y10T428/12937 ,  Y10T428/12944

    摘要： A beta-phase nickel aluminide (NiAl) overlay coating (24) and method for modifying the grain structure of the coating (24) to improve its oxidation resistance. The coating (24) is deposited by a method that produces a grain structure characterized by grain boundaries (44) exposed at the outer coating surface (36). The grain boundaries (44) may also contain precipitates (40) as a result of the alloyed chemistry of the coating (24). During or after deposition, the overlay coating (24) is caused to form new grain boundaries (34) that, though open to the outer surface (36) of the coating (24), are free of precipitates or contain fewer precipitates (40) than the as-deposited grain boundaries (44). New grain boundaries (34) are preferably produced by causing the overlay coating (24) to recrystallize during coating deposition or after deposition as a result of a surface treatment followed by heat treatment.

    摘要翻译： β相镍铝化合物（NiAl）覆盖层（24）以及用于改变涂层（24）的晶粒结构以提高其抗氧化性的方法。 通过产生以在外涂层表面（36）处暴露的晶界（44）为特征的晶粒结构的方法沉积涂层（24）。 由于涂层（24）的合金化学，晶界（44）也可含有沉淀物（40）。 在沉积期间或之后，使覆盖涂层（24）形成新的晶粒边界（34），其尽管向涂层（24）的外表面（36）开口，但没有沉淀物或含有较少的沉淀物（40） 比沉积的晶界（44）。 优选通过在涂布沉积期间或沉积后的覆盖涂层（24）进行再结晶，然后进行热处理后的表面处理，来制造新的晶界（34）。

    Method of selective region vapor phase aluminizing
    8.
    发明授权
    Method of selective region vapor phase aluminizing 有权
    选择性区域气相镀铝的方法

    公开(公告)号：US07163718B2

    公开(公告)日：2007-01-16

    申请号：US10685637

    申请日：2003-10-15

    申请人： Nripendra Nath Das ,  Joseph David Rigney ,  Jeffrey Allan Pfaendtner ,  Matthew David Saylor

    发明人： Nripendra Nath Das ,  Joseph David Rigney ,  Jeffrey Allan Pfaendtner ,  Matthew David Saylor

    IPC分类号： C23C16/00

    CPC分类号： C23C10/06 ,  C23C10/02 ,  C23C10/14 ,  Y02T50/67 ,  Y10T428/12736

    摘要： A process for forming diffusion aluminide coatings on an uncoated surface of a substrate, without interdiffusing a sufficient amount of aluminum into a coating layer to adversely affect the coating growth potential and mechanical properties of said coating layer. A metal substrate is provided comprising an external surface and an internal passage therein defined by an internal surface, at least a portion of the external surface of the substrate being coated with a coating layer selected from the group consisting of β-NiAl-base, MCrAlX, a line-of-sight diffusion aluminide, a non-line-of-sight diffusion aluminide, a pack diffusion aluminide, and a slurry diffusion aluminide on said substrate. The metal substrate is subjected to an aluminum vapor phase deposition process.

    摘要翻译： 在基底的未涂覆表面上形成扩散铝化物涂层的方法，而不会将足够量的铝相互扩散到涂层中，从而不利地影响涂层生长电位和所述涂层的机械性能。 提供了一种金属基底，其包括由内表面限定的外表面和内部通道，所述基底的外表面的至少一部分被涂覆有选自β-NiAl基，MCrAlX ，视线扩散铝化物，非视线扩散铝化物，包层扩散铝化物和在所述衬底上的浆料扩散铝化物。 金属基板经受铝气相沉积工艺。

    Process for applying an aluminum-containing coating using an inorganic slurry mix
    9.
    发明授权
    Process for applying an aluminum-containing coating using an inorganic slurry mix 有权
    使用无机浆料混合物涂覆含铝涂层的方法

    公开(公告)号：US06497920B1

    公开(公告)日：2002-12-24

    申请号：US09656287

    申请日：2000-09-06

    申请人： Jeffrey Allan Pfaendtner ,  Joseph David Rigney ,  Nripendra Nath Das ,  Michael James Weimer ,  John Lewis Lackman

    发明人： Jeffrey Allan Pfaendtner ,  Joseph David Rigney ,  Nripendra Nath Das ,  Michael James Weimer ,  John Lewis Lackman

    IPC分类号： B05D302

    CPC分类号： C23C10/30 ,  C23C10/20 ,  Y02T50/67

    摘要： An internal passage of an article such as a gas turbine airfoil is coated with an aluminum-containing coating. To accomplish this coating process, a coating slurry of a mixture of a carrier component of water and a hectorite clay or a bentonite clay, together with a solids component of a source of aluminum, a halide activator, and an oxide dispersant, is prepared. The coating slurry is applied to the internal passage of the gas turbine airfoil and dried. The gas turbine airfoil and the applied coating slurry are heated to form an aluminum-containing coating bonded to the internal passage of the gas turbine airfoil. Excess coating material is removed from the article internal passage.

    摘要翻译： 诸如燃气轮机翼片的制品的内部通道涂覆有含铝涂层。 为了完成这种涂覆工艺，制备了水的载体组分和锂蒙脱石粘土或膨润土之间的混合物与铝源的固体组分，卤化物活化剂和氧化物分散剂的混合物的涂料浆料。 将涂布浆料施加到燃气轮机翼型件的内部通道并干燥。 燃气轮机翼型件和涂覆的涂料浆料被加热以形成结合到燃气轮机翼型件的内部通道的含铝涂层。 从制品内部通道中除去过量的涂层材料。