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1.发明申请Alumina-Forming Cobalt-Nickel Base Alloy and Method of Making an Article Therefrom 有权氧化铝形成钴 - 镍基合金及其制造方法公开(公告)号：US20120312426A1
公开(公告)日：2012-12-13
申请号：US13156614
申请日：2011-06-09
申请人： Akane Suzuki , Andrew John Elliott , Michael Francis Xavier Gigliotti, JR. , Kathleen Blanche Morey , Jon Conrad Schaeffer , Pazhayannur Subramanian
发明人： Akane Suzuki , Andrew John Elliott , Michael Francis Xavier Gigliotti, JR. , Kathleen Blanche Morey , Jon Conrad Schaeffer , Pazhayannur Subramanian
CPC分类号： C22C19/07 , C22C19/056 , C22C19/057 , C22F1/10 , C23C8/10
摘要： A cobalt-nickel base alloy is disclosed. The alloy includes, in weight percent: greater than about 4% of Al, about 10 to about 20% of W, about 10 to about 40% Ni, about 5 to 20% Cr and the balance Co and incidental impurities. The alloy has a microstructure that is substantially free of a CoAl phase having a B2 crystal structure and configured to form a continuous, adherent aluminum oxide layer on an alloy surface upon exposure to a high-temperature oxidizing environment. A method of making an article of the alloy includes: selecting the alloy; forming an article from the alloy; solution-treating the alloy; and aging the alloy to form an alloy microstructure that is substantially free of a CoAl phase having a B2 crystal structure, wherein the alloy is configured to form a continuous, adherent aluminum oxide layer on an alloy surface upon exposure to a high-temperature oxidizing environment.
摘要翻译： 公开了一种钴 - 镍基合金。 该合金包括以重量％计：大于约4％的Al，约10至约20％的W，约10至约40％的Ni，约5至20％的Cr以及余量为Co和杂质。 该合金具有基本上不含具有B2晶体结构的CoAl相的微结构，并且构造成在暴露于高温氧化环境时在合金表面上形成连续的附着氧化铝层。 制造合金制品的方法包括：选择合金; 从合金制成制品; 溶液处理合金; 并且老化该合金以形成基本上不含具有B2晶体结构的CoAl相的合金微结构，其中该合金构造成在暴露于高温氧化环境时在合金表面上形成连续的粘附氧化铝层 。
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公开(公告)号：US20120312434A1
公开(公告)日：2012-12-13
申请号：US13156638
申请日：2011-06-09
申请人： Akane Suzuki , Andrew John Elliott , Michael Francis Xavier Gigliotti, JR. , Kathleen Blanche Morey , Pazhayannur Subramanian
发明人： Akane Suzuki , Andrew John Elliott , Michael Francis Xavier Gigliotti, JR. , Kathleen Blanche Morey , Pazhayannur Subramanian
CPC分类号： C22C19/07 , C22C19/057 , C22F1/10
摘要： A high-temperature, high-strength, oxidation-resistant cobalt-nickel base alloy is disclosed. The alloy includes, in weight percent: about 3.5 to about 4.9% of Al, about 12.2 to about 16.0% of W, about 24.5 to about 32.0% Ni, about 6.5% to about 10.0% Cr, about 5.9% to about 11.0% Ta, and the balance Co and incidental impurities. A method of making an article having high-temperature strength, cyclic oxidation resistance and corrosion resistance is disclosed. The method includes forming a high-temperature, high-strength, oxidation-resistant cobalt-nickel base alloy as described herein; forming an article from the alloy; solution-treating the alloy by a solution heat treatment; and aging the alloy by providing at least one aging heat treatment at an aging temperature that is less than the gamma-prime solvus temperature, wherein the alloy is configured to form a continuous, protective, adherent oxide layer on an alloy surface upon exposure to a high-temperature oxidizing environment.
摘要翻译： 公开了高温，高强度，耐氧化的钴镍基合金。 该合金包括重量百分比：约3.5至约4.9％的Al，约12.2至约16.0％的W，约24.5至约32.0％的Ni，约6.5％至约10.0％的Cr，约5.9％至约11.0％ Ta，余量Co和杂质。 公开了制造具有高温强度，耐环氧化和耐腐蚀性的制品的方法。 该方法包括形成如本文所述的高温，高强度，耐氧化的钴镍基合金; 从合金制成制品; 通过固溶热处理对合金进行溶解处理; 并且通过在低于γ'溶质温度的老化温度下提供至少一种时效热处理来老化合金，其中该合金构造成在暴露于合金表面时在合金表面上形成连续的，保护性的粘附氧化物层 高温氧化环境。
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3.发明申请CASTING METHODS FOR MAKING ARTICLES HAVING A FINE EQUIAXED GRAIN STRUCTURE 审中-公开用于制作具有精细晶粒结构的制品的铸造方法公开(公告)号：US20130160967A1
公开(公告)日：2013-06-27
申请号：US13336470
申请日：2011-12-23
申请人： Akane Suzuki , Stephen Joseph Balsone , Andrew John Elliott , Michael Francis Xavier Gigliotti, JR. , Shyh-Chin Huang , Roger John Petterson , Stephen Francis Rutkowski , Pazhayannur Ramanathan Subramanian
发明人： Akane Suzuki , Stephen Joseph Balsone , Andrew John Elliott , Michael Francis Xavier Gigliotti, JR. , Shyh-Chin Huang , Roger John Petterson , Stephen Francis Rutkowski , Pazhayannur Ramanathan Subramanian
CPC分类号： B22D27/04
摘要： Methods for casting a metallic material to form a component are described. The component can be a superalloy-containing turbine part, for example. The general method includes the step of pouring the metallic material, in molten form, into an investment mold; and then rapidly immersing the entire investment mold into a bath that contains a low-melting liquid coolant metal, so as to achieve substantially uniform, multi-directional heat transfer out of the molten material. The molten material that solidifies to form the component is characterized by a fine-grained, equiaxed grain structure. Related embodiments include the use of two ingots that constitute the superalloy material. One ingot includes the oxygen-reactive elements, and is prepared by a vacuum-melting technique. The other ingot includes the remainder of the elements, and can be prepared by a number of techniques, such as air-melting processes.
摘要翻译： 描述用于铸造金属材料以形成部件的方法。 该组件例如可以是含有超合金的涡轮机部件。 通常的方法包括以熔融形式将金属材料倒入投资模具中的步骤; 然后将整个投资模具快速浸入含有低熔点液体冷却剂金属的浴中，从而实现从熔融材料中的大致均匀的多方向热传递。 凝固形成组分的熔融材料的特征在于细晶粒等轴晶粒结构。 相关实施例包括使用构成超级合金材料的两个锭。 一个锭包括氧反应元素，并通过真空熔融技术制备。 另一个锭包括剩余的元素，并且可以通过许多技术制备，例如空气熔化过程。
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公开(公告)号：US20110076180A1
公开(公告)日：2011-03-31
申请号：US12570654
申请日：2009-09-30
申请人： Akane Suzuki , Michael Francis Xavier Gigliotti, JR. , Shyh-Chin Huang , Pazhayannur Ramanathan Subramanian
发明人： Akane Suzuki , Michael Francis Xavier Gigliotti, JR. , Shyh-Chin Huang , Pazhayannur Ramanathan Subramanian
CPC分类号： C22C19/057 , B22D27/045 , F01D5/28 , F01D9/041 , F05D2220/32 , F05D2240/35 , F05D2300/175 , F23R3/42
摘要： Rhenium-free nickel based alloys are provided. More particularly, the alloys comprise preferred levels and ratios of elements so as to achieve good high temperature strength of both gamma matrix phase and gamma prime precipitates, as well as good environmental resistance, without using rhenium. When cast and directionally solidified into single crystal form, the alloys exhibit creep and oxidation resistance substantially equivalent to or better than rhenium-bearing single-crystal alloys. Further, the alloys can be processed by directional solidification into articles in single crystal form or columnar structure comprising fine dendrite arm spacing, e.g., less than 400 μm, if need be, so that further improvements in mechanical properties in the articles can be seen.
摘要翻译： 提供无铼镍基合金。 更具体地，合金包括优选的含量和元素比例，以便在不使用铼的情况下实现γ基质相和γ初始沉淀物的良好的高温强度以及良好的耐环境性。 当铸造和定向凝固成单晶形式时，合金具有基本上等于或优于含铼单晶合金的蠕变和抗氧化性能。 此外，如果需要，合金可以通过定向固化加工成单晶形状或柱状结构的制品，包括细小的枝晶臂间距，例如小于400μm，从而可以看到制品中机械性能的进一步改善。
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公开(公告)号：US20100291406A1
公开(公告)日：2010-11-18
申请号：US12465821
申请日：2009-05-14
CPC分类号： C22C19/051 , C22C19/057 , C22F1/10 , Y10T428/12493 , Y10T428/12944
摘要： A cobalt-nickel alloy composition is described, containing about 20% to about 28% cobalt; about 37% to about 46% nickel; at least about 6% chromium; aluminum; and at least one refractory metal. The total weight of cobalt, aluminum, and refractory metal in the composition is less than about 50% of the total weight of the composition. Moreover, the alloy composition comprises both a (Co, Ni)-gamma phase and an L12-structured (gamma prime) phase. Various components made from the cobalt-nickel alloy composition are also described. Examples include high-temperature machinery and devices, e.g., components of gas turbine engines.
摘要翻译： 描述了钴镍合金组合物，其含有约20％至约28％的钴; 约37％至约46％的镍; 至少约6％的铬; 铝; 和至少一种难熔金属。 组合物中钴，铝和难熔金属的总重量小于组合物总重量的约50％。 此外，合金组成包括（Co，Ni） - γ相和L12结构（γ'）相。 还描述了由钴 - 镍合金组合物制成的各种组分。 实例包括高温机械和设备，例如燃气涡轮发动机的部件。
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公开(公告)号：US20120251330A1
公开(公告)日：2012-10-04
申请号：US13077475
申请日：2011-03-31
CPC分类号： F01D5/147 , B22D27/045 , B33Y80/00 , F05D2300/606 , F05D2300/607 , F05D2300/609 , Y10T29/49336
摘要： A component such as a turbine bucket or blade, and method for making the component, are presented. One embodiment is an article that comprises an airfoil casting portion comprising a plurality of integral regions, wherein the plurality of integral regions comprises a single-crystalline region and a columnar-grained region. Another embodiment is a method for fabricating an article. The method comprises providing a quantity of molten metal; providing a mold defining an airfoil portion having an axial direction and a transverse direction, wherein the airfoil portion of the mold comprises a single-crystal growth region and a columnar growth region disposed along the transverse direction from the single crystal growth region; introducing the molten metal into the mold; and solidifying the metal such that a solidification front progresses in the axial direction to produce an airfoil casting portion comprising a single-crystalline region and a columnar-grained region.
摘要翻译： 提出了诸如涡轮机桶或叶片的部件以及用于制造部件的方法。 一个实施例是一种制品，其包括包括多个整体区域的翼型铸造部分，其中所述多个整体区域包括单晶区域和柱状晶粒区域。 另一实施例是用于制造制品的方法。 该方法包括提供一定数量的熔融金属; 提供限定具有轴向方向和横向方向的翼型部的模具，其中所述模具的翼型部分包括单晶生长区域和沿着横向从单晶生长区域设置的柱状生长区域; 将熔融金属引入模具中; 并使金属固化，使得固化前沿轴向前进，以制造包括单晶区域和柱状晶粒区域的翼型铸造部分。
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公开(公告)号：US20110076182A1
公开(公告)日：2011-03-31
申请号：US12571013
申请日：2009-09-30
申请人： Akane Suzuki , Michael Francis Xavier Gigliotti, JR. , Shyh-Chin Huang , Pazhayannur Ramanathan Subramanian
发明人： Akane Suzuki , Michael Francis Xavier Gigliotti, JR. , Shyh-Chin Huang , Pazhayannur Ramanathan Subramanian
CPC分类号： C22C19/057
摘要： Rhenium-free nickel based alloys are provided. More particularly, the alloys comprise preferred levels and ratios of elements so as to achieve good high temperature strength of both gamma matrix phase and gamma prime precipitates, as well as good environmental resistance, without using rhenium. When cast and directionally solidified into single crystal form, the alloys exhibit creep resistance substantially equivalent to rhenium-bearing single-crystal alloys. Further, the alloys can be processed by directional solidification into articles in single crystal form or columnar structure comprising fine dendrite arm spacing, e.g., less than 400 μm, if need be, so that further improvements in mechanical properties in the articles can be seen.
摘要翻译： 提供无铼镍基合金。 更具体地，合金包括优选的含量和元素比例，以便在不使用铼的情况下实现γ基质相和γ初始沉淀物的良好的高温强度以及良好的耐环境性。 当铸造和定向凝固成单晶形式时，合金具有基本上等同于含铼单晶合金的抗蠕变性。 此外，如果需要，合金可以通过定向固化加工成单晶形状或柱状结构的制品，包括细小的枝晶臂间距，例如小于400μm，从而可以看到制品中机械性能的进一步改善。
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8.发明申请Casting Molds for Use in Directional Solidification Processes and Methods of Making 有权用于定向凝固过程的铸造模具和制造方法公开(公告)号：US20100170654A1
公开(公告)日：2010-07-08
申请号：US12348937
申请日：2009-01-06
申请人： Shyh-Chin Huang , Andrew John Elliott , Michael Francis Xavier Gigliotti, JR. , Roger John Petterson , Stephen Francis Rutkowski
发明人： Shyh-Chin Huang , Andrew John Elliott , Michael Francis Xavier Gigliotti, JR. , Roger John Petterson , Stephen Francis Rutkowski
CPC分类号： B22D27/045 , B22C9/04 , C30B11/002
摘要： Casting molds suitable for directional solidification processes using a liquid cooling bath include a graded facecoat structure on a mold body. The graded facecoat structure includes an innermost layer and a delamination layer, wherein the delamination layer fractures upon cooling of the molten metal so as to separate the mold body from the innermost layer, which remains in contact with or in close proximity to the metal being cast. Also disclosed are directional solidification processes.
摘要翻译： 适用于使用液体冷却浴的定向凝固方法的铸模包括在模体上的分级面涂层结构。 分级面涂层结构包括最内层和分层，其中分层在熔融金属冷却时破裂，从而将模具体与最内层分开，其保持与正在铸造的金属接触或非常接近 。 还公开了定向凝固方法。
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公开(公告)号：US20130251537A1
公开(公告)日：2013-09-26
申请号：US13444357
申请日：2012-04-11
申请人： Michael James Weimer , Bernard Patrick Bewlay , Michael Francis Xavier Gigliotti, JR. , Thomas Joseph Kelly
发明人： Michael James Weimer , Bernard Patrick Bewlay , Michael Francis Xavier Gigliotti, JR. , Thomas Joseph Kelly
摘要： Gamma titanium aluminide intermetallic compositions (gamma TiAl intermetallics) based on the TiAl (gamma) intermetallic compound. The gamma TiAl intermetallics contain chromium and niobium, as well as controlled amounts of carbon that achieve a desirable balance in room temperature mechanical properties and high temperature creep capabilities at temperatures approaching and possibly exceeding 1600° F. (about 870° C.).
摘要翻译： 基于TiAl（γ）金属间化合物的γ铝钛化物金属间化合物（γTiAl金属间化合物）。 γTiAl金属间化合物含有铬和铌，以及受控量的碳，其在接近和可能超过1600°F（约870℃）的温度下达到理想的室温机械性能平衡和高温蠕变性能。
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公开(公告)号：US20090061086A1
公开(公告)日：2009-03-05
申请号：US12098668
申请日：2008-04-07
CPC分类号： C23C30/00 , C23C10/52 , C23C10/58 , C23C26/00 , C23C28/321 , C23C28/3215 , C23C28/325 , C23C28/345 , C23C28/3455 , Y02T50/67 , Y10T428/12597 , Y10T428/12604 , Y10T428/12736 , Y10T428/1275 , Y10T428/12861 , Y10T428/12875 , Y10T428/12944
摘要： A coating process and system suitable for use on components subjected to high temperatures. The coating system includes an overlay coating of predominantly B2 phase rhodium aluminide (RhAl) intermetallic compound containing about 25 to about 90 atomic percent rhodium, about 10 to about 60 atomic percent aluminum, optionally up to a combined total of about 25 atomic percent of one or more platinum group metals chosen from the group consisting of platinum, palladium, ruthenium, and iridium, and up to about 20 atomic percent of the base metal and alloying constituents of the substrate. The RhAl intermetallic coating may serve as an environmental coating, a diffusion barrier layer for an overlying environmental coating, or both, with or without an outer ceramic coating.
摘要翻译： 适用于高温部件的涂布工艺和系统。 该涂层系统包括主要包含约25至约90原子百分比铑，约10至约60原子百分比的铝的B2相铑铝化物（RhAl）金属间化合物的覆盖涂层，任选地至多约25原子百分比的总和 或更多的选自铂，钯，钌和铱的铂族金属，以及最多约20原子％的基体金属和合金化成分。 RhAl金属间涂层可以用作环境涂层，用于覆盖环境涂层的扩散阻挡层，或两者都具有或不具有外部陶瓷涂层。
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