Physical vapor deposition apparatus and process
    13.
    发明授权
    Physical vapor deposition apparatus and process 有权
    物理气相沉积装置及工艺

    公开(公告)号:US06869508B2

    公开(公告)日:2005-03-22

    申请号:US10063808

    申请日:2002-05-15

    摘要: A PVD process and apparatus (120) for depositing a coating (132) from multiple sources (110, 111) of different materials. The process and apparatus (120) are particulaity intended to deposit a beta-nickel aluminide coating (132) containing one or more elements whose vapor pressures are lower than NiAl. The PVD process and apparatus (120) entail feeding at least two materials (110, 111) into a coating chamber (122) and evaporating the materials (110, 111) at different rates from separate molten pools (114, 115) thereof. Articles (130) to be coated are suspended within the coating chamber (122), and transported with a support apparatus (118) relative to the two molten pools (114, 115) so as to deposit a coating (132) with a controlled composition that is a mixture of the first and second materials (110, 111).

    摘要翻译: 一种用于从不同材料的多个源(110,111)沉积涂层(132)的PVD工艺和设备(120)。 该方法和装置(120)特别用于沉积含有一种或多种蒸气压低于NiAl的元素的β-镍铝化物涂层(132)。 PVD工艺和设备(120)需要将至少两种材料(110,111)进料到涂覆室(122)中并且以与其分离的熔池(114,115)不同的速率蒸发材料(110,111)。 待涂覆的制品(130)悬浮在涂覆室(122)内,并相对于两个熔池(114,115)用支撑装置(118)运输,以便沉积具有受控组合物的涂层(132) 即第一和第二材料(110,111)的混合物。

    Thermally-stabilized thermal barrier coating and process therefor
    16.
    发明授权
    Thermally-stabilized thermal barrier coating and process therefor 失效
    热稳定的热障涂层及其工艺

    公开(公告)号:US06492038B1

    公开(公告)日:2002-12-10

    申请号:US09723273

    申请日:2000-11-27

    IPC分类号: B32B1504

    摘要: A thermal barrier coating (TBC) and method for forming the coating on a component intended for use in a hostile environment. The coating and method are particularly directed to inhibiting sintering, grain coarsening/growth and pore redistribution in the coating during high temperature excursions by providing limited amounts of extremely fine carbide-based and/or nitride-based precipitates preferably formed at defects and pores at and between the grain boundaries of the TBC microstructure. The precipitates pin the TBC grain boundaries and pores during high temperature excursions, with the effect that the TBC microstructure is thermally stabilized. A coating containing the carbides and/or nitrides can be formed using a physical vapor deposition technique in an atmosphere that contains carbon and/or nitride gases or compounds thereof, or by evaporating a source material that contains carbon, carbon-containing compounds, carbides and/or nitrides.

    摘要翻译: 热障涂层(TBC)以及用于在敌对环境中使用的部件上形成涂层的方法。 涂层和方法特别涉及通过提供有限量的非常细小的碳化物基和/或氮化物基沉淀物,优选在缺陷和孔处形成,并且在高温偏移期间在缺陷和孔处形成,从而抑制涂层中的烧结,晶粒粗化/生长和孔再分布 在TBC微结构的晶界之间。 沉淀物在高温偏移期间将TBC晶粒边界和孔隙固定,从而使TBC微结构热稳定。 含有碳化物和/或氮化物的涂层可以使用物理气相沉积技术在含有碳和/或氮化物气体或其化合物的气氛中或通过蒸发含有碳,含碳化合物,碳化物的源材料和 /或氮化物。

    Process for a beta-phase nickel aluminide overlay coating
    19.
    发明授权
    Process for a beta-phase nickel aluminide overlay coating 有权
    一种β相镍铝覆盖涂层的工艺

    公开(公告)号:US07244467B2

    公开(公告)日:2007-07-17

    申请号:US10604368

    申请日:2003-07-15

    IPC分类号: C23C16/00

    摘要: A process for forming a beta-phase nickel aluminide (NiAl) overlay coating that is suitable for use as a bond coat for a thermal barrier coating (TBC). The overlay coating is deposited by a method that produces a generally columnar grain structure in which grains extend through the coating such that at least some grain boundaries are open at the coating surface. The coating is then peened with a particulate media, followed by heating the overlay coating to a temperature sufficient to cause the overlay coating to recrystallize and form new grain boundaries that are not open to the outer surface of the coating and significantly less susceptible to accelerated oxidation than the original grain boundaries. The particulate media is formed of a composition containing nickel and aluminum, such that an oxide scale that forms on the surface of the coating after the peening operation is substantially free of deleterious oxide compounds, notably iron-containing spinels.

    摘要翻译: 用于形成适合用作热障涂层(TBC)的粘合涂层的β-相镍铝化物(NiAl)覆盖涂层的方法。 覆盖涂层通过产生大致柱状晶粒结构的方法沉积,其中晶粒延伸穿过涂层,使得至少一些晶界在涂层表面开口。 然后用颗粒介质对涂层进行喷丸处理,然后将覆盖涂层加热至足以使覆盖涂层再结晶并形成不对涂层外表面开放的新晶粒边界,并显着降低易受加速氧化影响的温度 比原来的晶界。 颗粒介质由包含镍和铝的组合物形成,使得在喷丸操作之后在涂层表面上形成的氧化皮基本上不含有害氧化物化合物,特别是含铁尖晶石。

    Method of selective region vapor phase aluminizing
    20.
    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

    IPC分类号: C23C16/00

    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。