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1.发明授权Process for selectively masking turbine components during vapor phase diffusion coating 有权在气相扩散涂层期间选择性地掩蔽涡轮机部件的方法公开(公告)号：US06579567B1
公开(公告)日：2003-06-17
申请号：US09711565
申请日：2000-11-13
IPC分类号： C23C1604
CPC分类号： C23C8/04 , C23C10/04 , C23C14/50 , Y10T29/49318
摘要： Apparatus and method to improve vapor phase diffusion coating of articles. The apparatus provides a barrier to segregate the portion of the article requiring coating from the portion of the article not requiring coating. The fixture is reusable, being unaffected by the coating gases. The fixture reduces the exposure of the coating gases with the portion of the article not requiring coating. By use of an optional seal, the portion of the article not requiring coating can be isolated from the coating gases.
摘要翻译： 改善制品气相扩散涂层的装置和方法。 该装置提供了隔离物，从而使需要涂层的制品的部分从不需要涂覆的部分分离。 夹具可重复使用，不受涂层气体的影响。 固定装置可减少涂层气体与不需要涂层的物品部分的接触。 通过使用可选的密封件，不需要涂覆的制品的部分可以与涂覆气体隔离。
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2.发明授权Apparatus for masking turbine components during vapor phase diffusion coating 有权用于在气相扩散涂层期间遮蔽涡轮机部件的装置公开(公告)号：US06224673B1
公开(公告)日：2001-05-01
申请号：US09372106
申请日：1999-08-11
IPC分类号： C23C1600
CPC分类号： C23C8/04 , C23C10/04 , C23C14/50 , Y10T29/49318
摘要： Apparatus and method to improve vapor phase diffusion coating of articles. The apparatus provides a barrier to segregate the portion of the article requiring coating from the portion of the article not requiring coating. The fixture is reusable, being unaffected by the coating gases. The fixture reduces the exposure of the coating gases with the portion of the article not requiring coating. By use of an optional seal, the portion of the article not requiring coating can be isolated from the coating gases.
摘要翻译： 改善制品气相扩散涂层的装置和方法。 该装置提供了隔离物，从而使需要涂层的制品的部分从不需要涂覆的部分分离。 夹具可重复使用，不受涂层气体的影响。 固定装置可减少涂层气体与不需要涂层的物品部分的接触。 通过使用可选的密封件，不需要涂覆的制品的部分可以与涂覆气体隔离。
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3.发明授权Diffusion aluminide bond coat for a thermal barrier coating system and method therefor 失效用于热障涂层体系的扩散铝化物粘合涂层及其方法公开(公告)号：US06168874A
公开(公告)日：2001-01-02
申请号：US09016975
申请日：1998-02-02
IPC分类号： B32B900
CPC分类号： C23C28/324 , C23C10/50 , C23C10/52 , C23C12/00 , C23C12/02 , C23C28/321 , C23C28/345 , C23C28/3455 , Y10T428/12549 , Y10T428/12611 , Y10T428/12618
摘要： A thermal barrier coating system and a method for forming the coating system on a component designed for use in a hostile thermal environment, such as superalloy turbine, combustor and augmentor components of a gas turbine engine. The coating system includes a diffusion aluminide bond coat whose oxide growth rate is significantly reduced to improve the spallation resistance of a thermal barrier layer by forming the bond coat to include a dispersion of aluminum, chromium, nickel, cobalt and/or platinum group metal oxides. The oxides preferably constitute about 5 to about 20 volume percent of the bond coat. A preferred method of forming the bond coat is to initiate a diffusion aluminizing process in the absence of oxygen to deposit a base layer of diffusion aluminide, and then intermittently introduce an oxygen-containing gas into the diffusion aluminizing process to form within the bond coat the desired dispersion of oxides. Thereafter, a ceramic layer is deposited on the bond coat to form a thermal barrier coating.
摘要翻译： 一种热障涂层系统和一种在设计用于恶劣热环境的部件上形成涂层系统的方法，例如燃气涡轮发动机的超级合金涡轮机，燃烧器和增压器部件。 涂层体系包括扩散铝化物粘合涂层，其氧化物生长速率显着降低，以通过形成粘合涂层来改善热障层的抗剥落性，包括铝，铬，镍，钴和/或铂族金属氧化物的分散体 。 氧化物优选构成约5至约20体积％的粘合涂层。 形成粘合涂层的优选方法是在不存在氧的情况下开始扩散镀铝工艺以沉积扩散铝化物的基底层，然后间歇地将含氧气体引入扩散镀铝工艺中以在粘合涂层内形成 所需的氧化物分散体。 此后，在接合涂层上沉积陶瓷层以形成热障涂层。
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公开(公告)号：US06306458B1
公开(公告)日：2001-10-23
申请号：US09474548
申请日：1999-12-29
申请人： Thomas E. Mantkowski , Nripendra N. Das , Keith H. Betscher , Raymond W. Heidorn , Jackie L. King , Floyd A. Swigert
发明人： Thomas E. Mantkowski , Nripendra N. Das , Keith H. Betscher , Raymond W. Heidorn , Jackie L. King , Floyd A. Swigert
IPC分类号： B32B3500
CPC分类号： C23C8/06
摘要： A process for reclaiming aluminum alloy donor from a vapor phase deposition process used to form a diffusion aluminide coating on a component, such as the high-temperature superalloy components of gas turbine engines. The process generally entails recycling a particulate aluminum alloy donor material that, as a result of having been used as the donor material for depositing a diffusion aluminide coating on an article by vapor phase deposition, particles of the donor material comprise an aluminum alloy core encased in an aluminum-depleted shell. The process generally entails tumbling the donor material in a manner that removes the aluminum-depleted shell, followed by sieving the donor material to remove shell fragments and undersized particles.
摘要翻译： 用于从气相沉积工艺回收铝合金供体的方法，用于在诸如燃气涡轮发动机的高温超合金部件的组分上形成扩散铝化物涂层。 该方法通常需要循环使用颗粒状铝合金供体材料，该材料由于已被用作通过气相沉积在制品上沉积扩散铝化物涂层的供体材料的结果，供体材料的颗粒包含铝合金芯 一个铝耗尽的壳。 该方法通常需要以去除贫铝壳的方式翻转供体材料，然后筛选供体材料以除去壳碎片和尺寸过小的颗粒。
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公开(公告)号：US06440496B1
公开(公告)日：2002-08-27
申请号：US09487103
申请日：2000-01-19
IPC分类号： C23C1606
CPC分类号： C23C28/324 , C23C10/50 , C23C10/52 , C23C12/00 , C23C12/02 , C23C28/321 , C23C28/345 , C23C28/3455 , Y10T428/12549 , Y10T428/12611 , Y10T428/12618
摘要： A thermal barrier coating system and a method for forming the coating system on a component designed for use in a hostile thermal environment, such as superalloy turbine, combustor and augmentor components of a gas turbine engine. The coating system includes a diffusion aluminide bond coat whose oxide growth rate is significantly reduced to improve the spallation resistance of a thermal barrier layer by forming the bond coat to include a dispersion of aluminum, chromium, nickel, cobalt and/or platinum group metal oxides. The oxides preferably constitute about 5 to about 20 volume percent of the bond coat. A preferred method of forming the bond coat is to initiate a diffusion aluminizing process in the absence of oxygen to deposit a base layer of diffusion aluminide, and then intermittently introduce an oxygen-containing gas into the diffusion aluminizing process to form within the bond coat the desired dispersion of oxides. Thereafter, a ceramic layer is deposited on the bond coat to form a thermal barrier coating.
摘要翻译： 一种热障涂层系统和一种在设计用于恶劣热环境的部件上形成涂层系统的方法，例如燃气涡轮发动机的超级合金涡轮机，燃烧器和增压器部件。 涂层体系包括扩散铝化物粘合涂层，其氧化物生长速率显着降低，以通过形成粘合涂层来改善热障层的抗剥落性，包括铝，铬，镍，钴和/或铂族金属氧化物的分散体 。 氧化物优选构成约5至约20体积％的粘合涂层。 形成粘合涂层的优选方法是在不存在氧的情况下开始扩散镀铝工艺以沉积扩散铝化物的基底层，然后间歇地将含氧气体引入扩散镀铝工艺以在粘合涂层内形成 所需的氧化物分散体。 此后，在接合涂层上沉积陶瓷层以形成热障涂层。
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公开(公告)号：US06332931B1
公开(公告)日：2001-12-25
申请号：US09474550
申请日：1999-12-29
申请人： Nripendra N. Das , Thomas E. Mantkowski , Raymond W. Heidorn , Joshua L. Miller , Jeffrey A. Pfaendtner
发明人： Nripendra N. Das , Thomas E. Mantkowski , Raymond W. Heidorn , Joshua L. Miller , Jeffrey A. Pfaendtner
IPC分类号： C23C800
CPC分类号： C23C10/14
摘要： A process for forming a diffusion aluminide-hafnide coating on an article, such as a component for a gas turbine engine. The process is a vapor phase process that generally entails placing the article in a coating chamber containing a halide activator and at least one donor material. The donor material collectively consists essentially of at least 0.5 weight percent hafnium and at least 20 weight percent aluminum with the balance being chromium and/or cobalt.
摘要翻译： 一种用于在诸如燃气涡轮发动机的部件的物品上形成扩散铝化物 - 海菲尔德涂层的方法。 该方法是气相方法，其通常需要将物品置于含有卤化物活化剂和至少一种供体材料的涂料室中。 供体材料基本上由至少0.5重量％的铪和至少20重量％的铝组成，余量为铬和/或钴。
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公开(公告)号：US6039810A
公开(公告)日：2000-03-21
申请号：US191660
申请日：1998-11-13
IPC分类号： F01D5/28 , C23C14/14 , C23C14/24 , C23C16/12 , C23C16/44 , C23C16/458 , C23C26/00 , C23C16/00 , F16L25/00
CPC分类号： C23C16/458 , C23C16/44 , Y10S285/905 , Y10T403/217
摘要： A high temperature vapor coating container, including a hollow interior, resists distortion and cracking at a vapor coating temperature of at least about 1700.degree. F. as a result of making the container of a nonmetallic material having a coefficient of thermal expansion of less than about 4.5.times.10.sup.-6 at the vapor coating temperature, the material being nonreactive with the coating vapor at the vapor coating temperature.
摘要翻译： 包括中空内部的高温蒸汽涂层容器在至少约1700°F的蒸气涂覆温度下抵抗变形和开裂，这是因为使具有小于约的热膨胀系数的非金属材料的容器 在蒸气涂覆温度下为4.5×10-6，该材料在蒸气涂覆温度下与涂层蒸气不反应。
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8.发明授权
公开(公告)号：US6146696A
公开(公告)日：2000-11-14
申请号：US318644
申请日：1999-05-26
CPC分类号： C23C10/48
摘要： A process for simultaneously vapor phase aluminizing nickel-base and cobalt-base superalloys within a single process chamber using the same aluminum donor and activator, to yield diffusion aluminide coatings of approximately equal thickness. The process entails the use of an aluminum donor containing about 50 to about 60 weight percent aluminum, and an aluminum fluoride activator present in an amount of at least 1 gram per liter of coating chamber volume. Nickel-base and cobalt-base superalloys are simultaneously vapor phase aluminized for 4.5 to 5.5 hours at a temperature of about 1900.degree. F. to about 1950.degree. F. in an inert or reducing atmosphere. With these materials and process parameters, diffusion aluminide coatings are developed on both superalloys whose thicknesses do not differ from each other by more than about 30%.
摘要翻译： 使用相同的铝供体和活化剂在单个处理室内同时气相渗透镍基和钴基超级合金的方法，以产生大致相等厚度的扩散铝化物涂层。 该方法需要使用含有约50至约60重量％的铝的铝供体和以每升涂层室体积至少1克的量存在的氟化铝活化剂。 在惰性或还原气氛中，在约1900°F至约1950°F的温度下，镍基和钴基超级合金同时进行气相镀铝4.5至5.5小时。 利用这些材料和工艺参数，在两个超级合金上开发了扩散铝化物涂层，其厚度彼此不相差大约30％。
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9.发明授权Method of controlling thickness and aluminum content of a diffusion aluminide coating 失效控制扩散铝化物涂层的厚度和铝含量的方法公开(公告)号：US06334907B1
公开(公告)日：2002-01-01
申请号：US09417468
申请日：1999-10-13
IPC分类号： C23C800
摘要： A process for forming a diffusion aluminide coating on a substrate, such as a component for a gas turbine engine. The process generally entails placing the substrate in a suitable coating chamber, flowing an inert or reducing gas into and through the coating chamber, and then aluminizing the substrate using an aluminizing technique with a substantially constant aluminum activity, such as a vapor phase deposition process. During the aluminizing process, the amount of unreacted aluminum within the coating chamber is controlled by altering the flow rate of the gas through the coating chamber so that a portion of the unreacted aluminum is swept from the coating chamber by the gas. The amount of unreacted aluminum swept from the coating chamber is regulated by metering the gas flow rate in order to control the aluminizing rate and aluminum content of the resulting aluminide coating.
摘要翻译： 在基底上形成扩散铝化物涂层的方法，例如用于燃气涡轮发动机的部件。 该方法通常需要将基底放置在合适的涂布室中，使惰性或还原性气体流入涂层室并通过涂层室，然后使用具有基本上恒定的铝活性的镀铝技术（例如气相沉积工艺）使基底镀铝。 在镀铝过程中，通过改变通过涂覆室的气体的流速来控制涂覆室内的未反应铝的量，使得一部分未反应的铝被气体从涂覆室扫过。 通过计量气体流速来调节从涂覆室扫过的未反应铝的量，以便控制所得铝化物涂层的镀铝速率和铝含量。
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公开(公告)号：US06174448B1
公开(公告)日：2001-01-16
申请号：US09032790
申请日：1998-03-02
IPC分类号： C23F100
摘要： A method of removing a diffusion aluminide coating on a component designed for use in a hostile environment, such as superalloy turbine, combustor and augmentor components of a gas turbine engine. The method selectively removes an aluminide coating by stripping aluminum from the coating without causing excessive attack, alloy depletion and gross thinning of the underlying superalloy substrate. Processing steps generally include contacting the coating with a mixture that contains a halogen-containing activator and a metallic powder containing an aluminide-forming metal constituent, such as by pack cementation-type process. The mixture is then heated to a temperature sufficient to vaporize the halogen-containing activator and for a duration sufficient to cause the halogen-containing activator to provide a transfer mechanism for the removal of aluminum from at least a portion of the diffusion aluminide coating, while the metallic powder absorbs the removed aluminum.
摘要翻译： 在设计用于恶劣环境的部件上移除扩散铝化物涂层的方法，例如燃气涡轮发动机的超级合金涡轮机，燃烧器和增压器部件。 该方法通过从涂层中剥离铝而选择性地除去铝化物涂层，而不会引起过度的侵蚀，合金消耗和下层超级合金基底的粗化。 加工步骤通常包括使涂层与包含含卤素活化剂的混合物和含有形成铝化物的金属成分的金属粉末接触，例如通过包装胶结法处理。 然后将混合物加热到足以蒸发含卤素活化剂的温度，持续足够的时间使得含卤素活化剂提供用于从扩散铝化物涂层的至少一部分去除铝的转移机理，同时 金属粉末吸收除去的铝。
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