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    SUPERALLOY ARTICLE HAVING A GAMMA-PRIME NICKEL ALUMINIDE COATING
    1.
    发明申请
    SUPERALLOY ARTICLE HAVING A GAMMA-PRIME NICKEL ALUMINIDE COATING 有权
    具有优质镍基铝涂料的超级合金制品

    公开(公告)号：US20060093851A1

    公开(公告)日：2006-05-04

    申请号：US10904222

    申请日：2004-10-29

    申请人： Ramgopal Darolia ,  William Walston

    发明人： Ramgopal Darolia ,  William Walston

    IPC分类号： F03B3/12 ,  B32B15/01

    CPC分类号： C23C28/321 ,  C23C28/325 ,  C23C28/345 ,  C23C28/3455 ,  C23C30/00 ,  F01D5/288 ,  F05D2230/90 ,  F05D2300/611 ,  Y02T50/671 ,  Y10T428/12611 ,  Y10T428/12618 ,  Y10T428/12875 ,  Y10T428/12931 ,  Y10T428/12937 ,  Y10T428/12944

    摘要： An article for use in hostile thermal environments, such as a component of a gas turbine engine. The article includes a nickel-base superalloy substrate that is prone to formation of a deleterious secondary reaction zone (SRZ), and an overlay coating having a predominantly gamma prime-phase nickel aluminide (Ni3Al) composition suitable for use as an environmental coating, including a bond coat for a thermal barrier coating. The coating comprises a chromium-containing nickel aluminide intermetallic overlay coating of predominantly the gamma prime phase, in which aluminum is present in the coating in an amount approximately equal to the aluminum content of the superalloy substrate so as to inhibit diffusion of aluminum from the overlay coating into the superalloy substrate.

    摘要翻译： 用于敌对热环境中的物品，例如燃气轮机的部件。 该制品包括易于形成有害的次级反应区（SRZ）的镍基超级合金基材和具有主要为γ原相镍铝化合物（Ni 3 Al 3 Al）组成的覆盖涂层 适合用作环境涂层，包括用于热障涂层的粘合涂层。 该涂层包括主要为γ'相的含铬镍铝金属间覆盖涂层，其中铝在涂层中的含量约等于超级合金基材的铝含量，从而抑制铝从覆盖层的扩散 涂覆到超合金基材中。

    COATING SYSTEMS CONTAINING GAMMA-PRIME NICKEL ALUMINIDE COATING
    2.
    发明申请
    COATING SYSTEMS CONTAINING GAMMA-PRIME NICKEL ALUMINIDE COATING 有权
    包含GAMMA-PRIME镍铬铝涂料的涂料体系

    公开(公告)号：US20060093850A1

    公开(公告)日：2006-05-04

    申请号：US10904220

    申请日：2004-10-29

    申请人： Ramgopal Darolia ,  Joseph Rigney ,  William Walston

    发明人： Ramgopal Darolia ,  Joseph Rigney ,  William Walston

    IPC分类号： B32B15/01 ,  B32B15/04

    CPC分类号： F01D5/288 ,  F05C2201/0466 ,  F05D2230/90 ,  F05D2300/611 ,  Y10T428/12611 ,  Y10T428/12618 ,  Y10T428/12875 ,  Y10T428/12931 ,  Y10T428/12937 ,  Y10T428/12944

    摘要： An overlay coating for articles used in hostile thermal environments. The coating has a predominantly gamma prime-phase nickel aluminide (Ni3Al) composition suitable for use as an environmental coating and as a bond coat for a thermal barrier coating. The coating has a composition of, by weight, at least 6% to about 15% aluminum, about 2% to about 5% chromium, optionally one or more reactive elements in individual or combined amounts of up to 4%, optionally up to 2% silicon, optionally up to 60% of at least one platinum group metal, and the balance essentially nickel. A thermal-insulating ceramic layer may be deposited on the coating.

    摘要翻译： 用于敌对热环境中的物品的覆盖涂层。 该涂层主要具有适合用作环境涂层和用作热障涂层的粘合涂层的γ初始相铝酸镍（Ni 3 Al 3 Al）组合物。 该涂层具有按重量计至少6％至约15％的铝，约2％至约5％的铬，任选的一种或多种反应性元素的组合物，其个体或组合量可达4％，任选至多2 ％硅，任选至多60％的至少一种铂族金属，余量基本上为镍。 绝热陶瓷层可以沉积在涂层上。

    NICKEL-BASE SUPERALLOY
    3.
    发明申请
    NICKEL-BASE SUPERALLOY 审中-公开
    镍基超级合金

    公开(公告)号：US20070044869A1

    公开(公告)日：2007-03-01

    申请号：US11162221

    申请日：2005-09-01

    申请人： Ramgopal Darolia ,  William Walston ,  Kevin O'Hara

    发明人： Ramgopal Darolia ,  William Walston ,  Kevin O'Hara

    IPC分类号： C22C19/05

    CPC分类号： C22C19/057 ,  C22F1/10 ,  C30B29/52

    摘要： A nickel-base alloy that exhibits a desirable balance of mechanical properties, environmental properties, and microstructural stability suitable for gas turbine engine applications. The nickel-base alloy is in the form of a single-crystal casting consisting of, by weight, 5.75% to 6.5% aluminum, 4% to 5% tantalum, 2% to 6% chromium, 5.5% to 7% tungsten, 1.5% to 3% molybdenum, 4% to 5% rhenium, up to 1.0% niobium, 10% to 16% cobalt, up to 1% titanium, 0.01% to 0.05% carbon, up to 0.005% boron, up to 0.01% yttrium, 0.5% to 1.0% hafnium, the balance nickel and incidental impurities. The alloy has a density of not more than 0.320 lbs/in3 (about 8.87 g/cm3), and contains a combined amount of aluminum, tungsten, molybdenum, niobium, titanium, and hafnium specified relative to the combined amount of tantalum and rhenium.

    摘要翻译： 表现出适合燃气轮机发动机应用的机械性能，环境特性和微观结构稳定性所需平衡的镍基合金。 镍基合金为单晶铸造，其重量为5.75％至6.5％的铝，4％至5％的钽，2％至6％的铬，5.5％至7％的钨，1.5 ％至3％的钼，4％至5％的铼，至多1.0％的铌，10％至16％的钴，至多1％的钛，0.01％至0.05％的碳，至多0.005％的硼，至多0.01％的钇 ，0.5〜1.0％的铪，余量为镍和杂质。 该合金的密度不超过0.320磅/平方英寸（约8.87克/立方厘米），并含有铝，钨，钼，铌的组合量 ，钛和铪，相对于钽和铼的组合量而言。

    Stable, high-temperature nickel-base superalloy and single-crystal articles utilizing the superalloy
    4.
    发明申请
    Stable, high-temperature nickel-base superalloy and single-crystal articles utilizing the superalloy 审中-公开
    稳定的高温镍基超级合金和采用超级合金的单晶制品

    公开(公告)号：US20060039820A1

    公开(公告)日：2006-02-23

    申请号：US10922510

    申请日：2004-08-20

    申请人： Ramgopal Darolia ,  William Walston ,  Kevin O'Hara ,  Christine Govern

    发明人： Ramgopal Darolia ,  William Walston ,  Kevin O'Hara ,  Christine Govern

    IPC分类号： C22C19/05

    CPC分类号： C22C19/057 ,  C23C28/322 ,  C23C28/3455 ,  F01D5/28 ,  F01D25/005 ,  F05D2300/607 ,  Y02T50/67 ,  Y02T50/671

    摘要： An article includes a substantially single crystal piece having a composition consisting essentially of, in weight percent, from 0.4 to 6.5 percent ruthenium, from 3 to 8 percent rhenium, from 5.8 to 10.7 percent tantalum, from 4.25 to 17.0 percent cobalt, from 0.1 to 2.0 percent hafnium, from 0.02 to 0.4 percent carbon, from 0.001 to 0.005 percent boron, from 0 to 0.02 percent yttrium, from 1 to 4 percent molybdenum, from 1.25 to 10 percent chromium, from 0.5 to 2.0 percent niobium, from 0.05 to 0.5 percent zirconium, from 5.0 to 6.6 percent aluminum, from 0 to 2.0 percent titanium, from 3.0 to 7.5 percent tungsten, and from 0.1 to 6 percent of platinum, iridium, rhodium, and palladium, and combinations thereof, balance nickel and incidental impurities.

    摘要翻译： 一种制品包括基本上单晶片，其组成基本上由重量百分比组成，钌含量为henium henium henium henium henium henium henium henium henium henium henium henium henium henium henium henium henium henium henium henium henium henium henium henium henium r r r r r r r r r r r r r r r 2.0％的铪，0.02〜0.4％的碳，0.001〜0.005％的硼，0〜0.02％的钇，1〜4％的钼，1.25〜10％的铬，0.5〜2.0％的铌，0.05〜0.5 的锆，5.0至6.6％的铝，0至2.0％的钛，3.0至7.5％的钨和0.1至6％的铂，铱，铑和钯及其组合，才能平衡镍和杂质。

    PROCESS OF APPLYING A COATING SYSTEM
    10.
    发明申请
    PROCESS OF APPLYING A COATING SYSTEM 有权
    涂布系统的应用过程

    公开(公告)号：US20090220684A1

    公开(公告)日：2009-09-03

    申请号：US12465884

    申请日：2009-05-14

    申请人： Mark Daniel Gorman ,  Brian Thomas Hazel ,  Brett Allen Rohrer Boutwell ,  Ramgopal Darolia

    发明人： Mark Daniel Gorman ,  Brian Thomas Hazel ,  Brett Allen Rohrer Boutwell ,  Ramgopal Darolia

    IPC分类号： B05D5/12

    CPC分类号： C23C10/02 ,  C23C10/48 ,  C23C10/50 ,  Y10T428/12458 ,  Y10T428/12736 ,  Y10T428/1275 ,  Y10T428/12861 ,  Y10T428/12875 ,  Y10T428/12944 ,  Y10T428/26 ,  Y10T428/265

    摘要： A coating process for an article having a substrate formed of a metal alloy that is prone to the formation of a secondary reaction zone (SRZ). The coating process forms a coating system that includes an aluminum-containing overlay coating and a stabilizing layer between the overlay coating and the substrate. The overlay coating contains aluminum in an amount greater by atomic percent than the metal alloy of the substrate, such that there is a tendency for aluminum to diffuse from the overlay coating into the substrate. The stabilizing layer is predominantly or entirely formed of at least one platinum group metal (PGM), namely, platinum, rhodium, iridium, and/or palladium. The stabilizing layer is sufficient to inhibit diffusion of aluminum from the overlay coating into the substrate so that the substrate remains essentially free of an SRZ that would be deleterious to the mechanical properties of the alloy.

    摘要翻译： 一种具有由容易形成二次反应区（SRZ）的金属合金形成的基材的制品的涂布方法。 涂覆工艺形成涂层系统，其包括含铝覆盖涂层和覆盖涂层与基底之间的稳定层。 覆盖涂层含有比基底的金属合金更大原子百分数的铝，使得铝从覆盖涂层扩散到基底中的倾向。 稳定层主要或完全由至少一种铂族金属（PGM），即铂，铑，铱和/或钯形成。 稳定层足以抑制铝从覆盖涂层扩散到衬底中，使得衬底基本上不含对合金的机械性能有害的SRZ。