公开(公告)号：US20130115867A1

公开(公告)日：2013-05-09

申请号：US13291254

申请日：2011-11-08

Applicant: Krishnamurthy Anand ,  Yuk-Chiu Lau ,  Sundar Amancherla ,  Eklavya Calla ,  Viswanathan Venkatachalapathy ,  James Warren Pemrick

Inventor： Krishnamurthy Anand ,  Yuk-Chiu Lau ,  Sundar Amancherla ,  Eklavya Calla ,  Viswanathan Venkatachalapathy ,  James Warren Pemrick

IPC: B05B15/12 ,  B23P11/00

CPC classification number: F01D25/285 ,  B05B14/00 ,  F05D2230/80 ,  F05D2230/90 ,  F05D2240/20 ,  F05D2240/60 ,  Y10T29/49826

Abstract: An enclosure system is provided having a shroud configured to cover at least a portion of a shaft. The shroud includes an input port and an output port. The input port is configured to accept at least one of a coating tool and an abrasive supplying tool. The output port is connected to a vacuum system.

Abstract translation: 一种封闭系统，其具有构造成覆盖轴的至少一部分的护罩。 护罩包括输入端口和输出端口。 输入端口被配置为接受涂覆工具和磨料供给工具中的至少一个。 输出端口连接到真空系统。

公开(公告)号：US20090014505A1

公开(公告)日：2009-01-15

申请号：US12236788

申请日：2008-09-24

Applicant: Laurent Cretegny ,  Sundar Amancherla ,  Jeffrey Jon Schoonover ,  Balasubramaniam Vaidhyanathan

Inventor： Laurent Cretegny ,  Sundar Amancherla ,  Jeffrey Jon Schoonover ,  Balasubramaniam Vaidhyanathan

IPC: B23K1/005 ,  B23K35/22

CPC classification number: B23K1/0018 ,  B23K1/005 ,  B23K35/22 ,  Y10T428/12063 ,  Y10T428/12139

Abstract: Braze materials and processes for using braze materials, such as for use in the manufacturing, coating, repair, and build-up of superalloy components. The braze material contains a plurality of first particles of a metallic material having a melting point, and a plurality of second particles comprising at least one nonmetallic material chosen from the group consisting of oxides, carbides, and nitrides of at least one metal. The nonmetallic material is more susceptible to heating by microwave radiation than the metallic material of the first particles, and the nonmetallic material is present in the braze material in an amount sufficient to enable the first particles to completely melt when the first and second particles are subjected to heating by microwave radiation.

Abstract translation: 钎焊用于使用钎焊材料的材料和工艺，例如用于制造，涂覆，修复和积聚超合金部件。 钎焊材料包含多个具有熔点的金属材料的第一颗粒和多个第二颗粒，其包含至少一种选自至少一种金属的氧化物，碳化物和氮化物的非金属材料。 非金属材料比第一颗粒的金属材料更容易被微波辐射加热，并且非金属材料以足以使第一颗粒和第二颗粒经受第一颗粒完全熔化的量存在于钎焊材料中 通过微波辐射加热。

公开(公告)号：US08342386B2

公开(公告)日：2013-01-01

申请号：US12236788

申请日：2008-09-24

Applicant: Laurent Cretegny ,  Sundar Amancherla ,  Jeffrey Jon Schoonover ,  Balasubramaniam Vaidhyanathan

Inventor： Laurent Cretegny ,  Sundar Amancherla ,  Jeffrey Jon Schoonover ,  Balasubramaniam Vaidhyanathan

IPC: B23K31/00

CPC classification number: B23K1/0018 ,  B23K1/005 ,  B23K35/22 ,  Y10T428/12063 ,  Y10T428/12139

Abstract: Braze materials and processes for using braze materials, such as for use in the manufacturing, coating, repair, and build-up of superalloy components. The braze material contains a plurality of first particles of a metallic material having a melting point, and a plurality of second particles comprising at least one nonmetallic material chosen from the group consisting of oxides, carbides, and nitrides of at least one metal. The nonmetallic material is more susceptible to heating by microwave radiation than the metallic material of the first particles, and the nonmetallic material is present in the braze material in an amount sufficient to enable the first particles to completely melt when the first and second particles are subjected to heating by microwave radiation.

Abstract translation: 钎焊用于使用钎焊材料的材料和工艺，例如用于制造，涂覆，修复和积聚超合金部件。 钎焊材料包含多个具有熔点的金属材料的第一颗粒和多个第二颗粒，其包含至少一种选自至少一种金属的氧化物，碳化物和氮化物的非金属材料。 非金属材料比第一颗粒的金属材料更容易被微波辐射加热，并且非金属材料以足以使第一颗粒和第二颗粒经受第一颗粒完全熔化的量存在于钎焊材料中 通过微波辐射加热。

公开(公告)号：US20120282086A1

公开(公告)日：2012-11-08

申请号：US13100441

申请日：2011-05-04

Applicant: Ganjiang Feng ,  Jon Conrad Schaeffer ,  Stephen Joseph Balsone ,  Hariharan Sundaram ,  Sundar Amancherla ,  Gitahi Charles Mukira

Inventor： Ganjiang Feng ,  Jon Conrad Schaeffer ,  Stephen Joseph Balsone ,  Hariharan Sundaram ,  Sundar Amancherla ,  Gitahi Charles Mukira

IPC: F01D9/02 ,  C22C19/05

CPC classification number: C22C19/056 ,  C22C19/05 ,  F01D5/28 ,  F05D2300/607

Abstract: The invention is a class of nickel-base alloys for gas turbine applications, comprising, by weight, about 13.7 to about 14.3 percent chromium, about 5.0 to about 10.0 percent cobalt, about 3.5 to about 5.2 percent tungsten, about 2.8 to about 5.2 percent titanium, about 2.8 to about 4.6 percent aluminum, about 0.0 to about 3.5 percent tantalum, about 1.0 to about 1.7 percent molybdenum, about 0.08 to about 0.13 percent carbon, about 0.005 to about 0.02 percent boron, about 0.0 to about 1.5 percent niobium, about 0.0 to about 2.5 percent hafnium, about 0.0 to about 0.04 percent zirconium, and the balance substantially nickel. The nickel-base alloys may be provided in the form of useful articles of manufacture, and which possess a unique combination of mechanical properties, microstructural stability, resistance to localized pitting and hot corrosion in high temperature corrosive environments, and high yields during the initial forming process as well as post-forming manufacturing and repair processes.

Abstract translation: 本发明是一类用于燃气轮机应用的镍基合金，其重量包含约13.7-约14.3％的铬，约5.0-约10.0％的钴，约3.5-约5.2％的钨，约2.8-约5.2％ 钛，约0.08至约4.6％的铝，约0.0至约3.5％的钽，约1.0至约1.7％的钼，约0.08至约0.13％的碳，约0.005至约0.02％的硼，约0.0至约1.5％的铌， 约0.0至约2.5％的铪，约0.0至约0.04％的锆，余量基本上为镍。 镍基合金可以以有用的制品形式提供，并且具有机械性能，微结构稳定性，耐高温腐蚀性环境中的局部点蚀和热腐蚀的独特组合，以及在初始成型期间的高产率 过程以及后成型制造和维修过程。

公开(公告)号：US20090140030A1

公开(公告)日：2009-06-04

申请号：US11928331

申请日：2007-10-30

Applicant: Sundar Amancherla ,  Laurent Cretegny

Inventor： Sundar Amancherla ,  Laurent Cretegny

IPC: B23K31/02 ,  C22C19/05 ,  C22C30/00

CPC classification number: B23K35/3033 ,  B23K35/0233 ,  B23K35/0244 ,  B23K35/025 ,  B23K35/304 ,  C22C1/0433 ,  C22C19/05 ,  C22C19/051 ,  C22C19/055 ,  C22C19/056 ,  C22C19/057 ,  C22C19/058 ,  C22F1/10

Abstract: A braze formulation for superalloys including nickel, chromium, optionally, cobalt, optionally, aluminum, optionally, boron, hafnium and tantalum, said braze formulation having a solidus temperature of no greater than about 1180° C. and a liquidus temperature of no greater than about 1250° C. Methods for brazing are also provided. The brazing formulations are robust with good ductility and have minimal embrittled phases or otherwise decreased braze integrity.

Abstract translation: 用于超合金的钎焊制剂，包括镍，铬，任选的钴，任选的铝，任选的硼，铪和钽，所述钎焊制剂的固相线温度不大于约1180℃，液相线温度不大于 约1250℃。还提供了钎焊方法。 钎焊配方坚固耐用，具有良好的延展性，并且具有最小的脆化相或以其它方式降低钎焊完整性。

公开(公告)号：US20080142126A1

公开(公告)日：2008-06-19

申请号：US11610527

申请日：2006-12-14

Applicant: MICHAEL FRANCIS XAVIER GIGLIOTTI ,  PAZHAYANNUR RAMANATHAN SUBRAMANIAN ,  SUNDAR AMANCHERLA ,  KRISHNAMURTHY ANAND ,  DHEEPA SRINIVASAN ,  CANAN USLU HARDWICKE

Inventor： MICHAEL FRANCIS XAVIER GIGLIOTTI ,  PAZHAYANNUR RAMANATHAN SUBRAMANIAN ,  SUNDAR AMANCHERLA ,  KRISHNAMURTHY ANAND ,  DHEEPA SRINIVASAN ,  CANAN USLU HARDWICKE

IPC: C22F1/00 ,  C22C14/00 ,  C22C19/03 ,  C22C19/07 ,  C22C38/00

CPC classification number: C22C14/00 ,  B22F2998/00 ,  B22F2999/00 ,  C22C19/00 ,  C22C19/03 ,  C22C19/07 ,  C22C32/0026 ,  C22C32/0031 ,  C22F1/10 ,  B22F5/04 ,  B22F2207/13

Abstract: A metallic structure having a graded microstructure is provided. The metallic structure comprises a graded region comprising a plurality of grains having a gradient in grain size varying as a function of position between a first median grain size at an outer region and a second median grain size at an inner region and a plurality of dispersoids dispersed within the microstructure. The first median grain size is different from the second median grain size. A method of forming a metallic structure having a graded microstructure is also provided. The method comprises: providing a metallic structure comprising at least one reactive species; diffusing at least one reactant at a controlled rate from an outer region of the metallic structure towards an inner region of the metallic structure to form a gradient in reactant activity; reacting the reactant with the reactive species to form a plurality of dispersoids; and heat treating the metallic structure to achieve grain growth so as to form a graded microstructure.

Abstract translation: 提供了具有梯度微结构的金属结构。 所述金属结构包括梯度区域，所述梯度区域包括多个晶粒，所述晶粒尺寸的梯度随着在外部区域的第一中值粒度和内部区域的第二中值粒径之间的位置而变化，并且分散的多个分散体 在微结构内。 第一中值粒度不同于第二中值粒度。 还提供了一种形成具有渐变微结构的金属结构的方法。 该方法包括：提供包含至少一种反应性物质的金属结构; 将受控速率的至少一种反应物从金属结构的外部区域扩散到金属结构的内部区域，以形成反应物活性的梯度; 使反应物与活性物质反应形成多个分散体; 并对金属结构进行热处理以实现晶粒生长以形成渐变微结构。