公开(公告)号：US11739410B2

公开(公告)日：2023-08-29

申请号：US15624396

申请日：2017-06-15

Applicant: The Penn State Research Foundation

Inventor： Douglas E. Wolfe ,  Michael P. Schmitt

IPC: C23C28/00 ,  C23C4/11 ,  C23C10/60 ,  C23C10/28 ,  C23C10/52 ,  C23C4/134 ,  C23C14/08 ,  C23C14/30 ,  F01D5/28 ,  F01D9/04 ,  F02C7/24

CPC classification number: C23C4/11 ,  C23C4/134 ,  C23C10/28 ,  C23C10/52 ,  C23C10/60 ,  C23C14/081 ,  C23C14/30 ,  C23C28/321 ,  C23C28/3215 ,  C23C28/345 ,  C23C28/3455 ,  F01D5/288 ,  F01D9/04 ,  F02C7/24 ,  F05D2220/323 ,  F05D2230/312 ,  F05D2230/313 ,  F05D2230/90 ,  F05D2300/15 ,  F05D2300/2112 ,  F05D2300/2118 ,  F05D2300/5023 ,  F05D2300/5024 ,  Y02T50/60

Abstract: High temperature stable thermal barrier coatings useful for substrates that form component parts of engines such as a component from a gas turbine engine exposed to high temperatures are provided. The thermal barrier coatings include a multiphase composite and/or a multilayer coating comprised of two or more phases with at least one phase providing a low thermal conductivity and at least one phase providing mechanical and erosion durability. Such low thermal conductivity phase can include a rare earth zirconate and such mechanical durability phase can include a rare earth a rare earth aluminate. The different phases are thermochemically compatible even at high temperatures above about 1200° C.

公开(公告)号：US20220213585A1

公开(公告)日：2022-07-07

申请号：US17706050

申请日：2022-03-28

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Michael N. Task ,  Xuan Liu

IPC: C23C10/26 ,  C23C10/54 ,  C23C10/56 ,  C23C10/52 ,  C23C10/30 ,  C23C10/60

Abstract: A process includes applying a slurry to a surface of a metallic article to produce a slurry film on the surface. The slurry is composed of a liquid carrier, chromium and aluminum, and an agent that is reactive with the chromium and aluminum to form intermediary compounds. The article and slurry film are then thermally treated at an activation temperature at which the agent reacts with the chromium and aluminum to form the intermediary compounds. The intermediary compounds deposit the chromium and aluminum on the surface. The thermal treating also diffuses the chromium and aluminum into a sub-surface region of the article such that the sub-surface region becomes enriched with chromium and aluminum.

公开(公告)号：US10584411B2

公开(公告)日：2020-03-10

申请号：US14792721

申请日：2015-07-07

Applicant: United Technologies Corporation

Inventor： Mark A. Livings ,  Chelsea Brown

IPC: C23C16/06 ,  C23C16/46 ,  B32B15/01 ,  F01D5/28 ,  C23C10/06 ,  F01D5/18 ,  C23C10/02 ,  C23C10/14 ,  C23C10/16 ,  C23C10/28 ,  C23C16/10 ,  C23C16/12 ,  C23C16/56 ,  C23C10/32 ,  C23C10/34 ,  C23C28/00 ,  C23C28/02 ,  C23C10/24 ,  C23C10/10 ,  C23C10/30 ,  C23C10/36 ,  C23C10/08 ,  C23C16/02 ,  C23C10/18 ,  C23C10/38 ,  C23C16/08 ,  C23C16/00 ,  C23C10/20 ,  C23C10/60 ,  C23C10/52 ,  C23C10/56 ,  C23C10/54 ,  C23C10/48

Abstract: A method of applying a protective coating to an article comprises the steps of a) depositing aluminum in a surface region of an article, and b) depositing chromium is the surface region of the article subsequent to step a), whereby at least a portion of the chromium replaces at least a portion of the aluminum. Another method and an article are also disclosed.

公开(公告)号：US20190161845A1

公开(公告)日：2019-05-30

申请号：US16263226

申请日：2019-01-31

Applicant: CHONGQING DAYOU SURFACE TECHNOLOGY CO., LTD.

Inventor： YU-ZHONG REN

IPC: C23C10/52 ,  C23C10/02 ,  C23C10/60

Abstract: A steel member with surface modified during manufacture has good anti-corrosion properties. The steel member includes a steel substrate, a metallic diffusion layer formed on the steel substrate, and an alloy deposition layer formed on the metallic diffusion layer. The steel substrate is made of low-carbon steel or low-carbon alloy steel. After cleaning and heating processes are applied, the metallic diffusion layer includes pearlite and ferrite crystals and hardness of the surface is also enhanced. The alloy deposition layer includes zinc ferrum alloy.

公开(公告)号：US20180266257A1

公开(公告)日：2018-09-20

申请号：US15985017

申请日：2018-05-21

Applicant: SAFRAN AIRCRAFT ENGINES ,  UNIVERSITE DE LORRAINE

Inventor： Stéphane KNITTEL ,  Stéphane MATHIEU ,  Michel VILASI

IPC: F01D5/28 ,  C23C16/32 ,  C23C16/42 ,  C23C10/52

CPC classification number: F01D5/288 ,  C23C10/52 ,  C23C10/54 ,  C23C16/32 ,  C23C16/42 ,  F01D5/28 ,  F05D2300/13 ,  Y02T50/672

Abstract: A part include a refractory alloy including a niobium matrix having metal silicide inclusions present therein, the surface of the part being coated by a protective coating, the protective coating including a phase having the following stoichiometry: (NbxTi1-x)3MβCrγSiδXε where M designates Fe, Co, or Ni, X designates one or more other elements that might be present, x lies in the range 0 to 1, x lies in the range 5 to 8.5, and the sum β+γ lies in the range 3 to 7; or Nb4M′ƒSiθX′ε′ where M′ designates Fe, Co, or Ni, X′ designates one or more other elements that might be present, η lies in the range 3.2 to 4.8, and θ lies in the range 6 to 8.

公开(公告)号：US20180202317A1

公开(公告)日：2018-07-19

申请号：US15919442

申请日：2018-03-13

Applicant: Siemens Aktiengesellschaft

Inventor： Paul Mathew Walker

IPC: F01D25/00 ,  C23C16/06 ,  C23C16/02 ,  B32B15/01 ,  B05D3/02 ,  C23C28/02 ,  C23C10/60 ,  C23C10/56 ,  C23C10/54 ,  C23C10/52 ,  C23C10/02

CPC classification number: F01D25/005 ,  B05D3/0254 ,  B32B15/017 ,  C23C10/02 ,  C23C10/52 ,  C23C10/54 ,  C23C10/56 ,  C23C10/60 ,  C23C16/0272 ,  C23C16/06 ,  C23C28/02 ,  C23C28/021 ,  C23C28/022 ,  C23C28/023

Abstract: A method of coating a superalloy substrate, includes (a) aluminising the surface of the substrate to form an inner coating layer; (b) applying a slurry with a solid content including Cr, Al, Ni and Co onto the inner coating layer, where the Cr-content of the solid content is between 15% and 30% by weight thereof, and diffusion heat treating the slurry applied to the inner coating layer at a temperature above 800° C. for 1 to 8 hours to form an intermediate coating layer; and (c) applying a Cr-free slurry with a solid content including Al and Ni onto the intermediate coating layer, where the Al-content of the solid content is between 15% and 30% by weight of the solid content, and diffusion heat treating the slurry applied onto the intermediate surface layer at a temperature above 800° C. for 1 to 8 hours to form an outer coating layer.

公开(公告)号：US6093260A

公开(公告)日：2000-07-25

申请号：US839831

申请日：1997-04-17

Applicant: Sabino Steven Anthony Petrone ,  Radhakrishna Chakravarthy Mandyam ,  Andrew George Wysiekierski

Inventor： Sabino Steven Anthony Petrone ,  Radhakrishna Chakravarthy Mandyam ,  Andrew George Wysiekierski

IPC: C23C10/52 ,  C23C12/00 ,  C23C12/02 ,  C23C14/16 ,  C23C16/06 ,  C23C26/00 ,  C23C2/28 ,  C23C22/72 ,  C23C22/82

CPC classification number: C23C26/00 ,  C23C10/52 ,  C23C12/02 ,  Y10T428/12458 ,  Y10T428/1259 ,  Y10T428/12618 ,  Y10T428/12854 ,  Y10T428/12931 ,  Y10T428/12958 ,  Y10T428/12979

Abstract: There is provided a surface alloyed component which comprises a base alloy with a diffusion barrier layer enriched in silicon and chromium being provided adjacent thereto. An enrichment pool layer is created adjacent said diffusion barrier and contains silicon and chromium and optionally titanium or aluminum. A reactive gas treatment may be used to generate a replenishable protective scale on the outermost surface of said component.

Abstract translation: 提供了一种表面合金成分，其包括具有富含硅的扩散阻挡层的基底合金和与之相邻的铬。 在所述扩散阻挡层附近产生富集池层，并且含有硅和铬以及任选的钛或铝。 可以使用反应性气体处理来在所述组件的最外表面上产生可补充的保护垢。

公开(公告)号：US5972429A

公开(公告)日：1999-10-26

申请号：US962753

申请日：1997-11-03

Applicant: George T. Bayer ,  Kim A. Wynns

Inventor： George T. Bayer ,  Kim A. Wynns

IPC: C23C10/52 ,  C23C10/54 ,  C23C16/22

CPC classification number: C23C10/52 ,  C23C10/54

Abstract: A method of diffusion coating a surface of an alloy product containing at least 5 wt. % iron with a chromium-silicon coating uses a dual activator containing a fluoride salt and a chloride salt, at least one of those salts particularly being ammonium chloride or another ammonium halide salt. The pack mix contain at least 20% chromium and a chromium to silicon ratio of at least 10 to 1. The workpiece is heated to at least 2050.degree. F. to obtain a coating of at least 10 mils which contains at least 30% chromium. Upon heating the ammonium salt will form a reducing environment containing molecular hydrogen. The presence of molecular hydrogen speeds up the chemical reactions by an additional reduction reaction to create the surface coating which enables the coating reactions to occur shorter hold times.

Abstract translation: 一种扩散涂覆合金产品表面的方法，该合金产品含有至少5wt。 具有铬 - 硅涂层的％铁使用含有氟化物盐和氯化物盐的双重活化剂，这些盐中的至少一种盐，特别是氯化铵或另一种卤化铵盐。 包装混合物含有至少20％的铬和至少10:1的铬与硅的比例。将工件加热至至少2050°F，以获得至少10密耳的涂层，其中含有至少30％的铬。 加热后，铵盐将形成含有分子氢的还原环境。 分子氢的存在通过额外的还原反应加速化学反应，产生表面涂层，使涂层反应发生更短的保持时间。

公开(公告)号：US4177092A

公开(公告)日：1979-12-04

申请号：US870645

申请日：1978-01-19

Applicant: Graham J. Thursby

Inventor： Graham J. Thursby

IPC: C23C10/30 ,  C23C10/44 ,  C23C10/52 ,  H01F1/14 ,  H01F1/147 ,  C21D1/78

CPC classification number: H01F1/14 ,  H01F1/14783

Abstract: Aluminium or silicon is diffused into iron (including silicon-iron) by applying to the iron an aqueous paste containing powdered aluminium/silicon, sodium silicate, and optionally magnesium oxide and colloidal silica, and firing it.

Abstract translation: 通过向铁施加含有铝/硅，硅酸钠和任选的氧化镁和胶体二氧化硅的水性糊料并将其烧制，将铝或硅扩散到铁（包括硅 - 铁）中。

公开(公告)号：US4145481A

公开(公告)日：1979-03-20

申请号：US821546

申请日：1977-08-03

Applicant: Dinesh K. Gupta ,  Louis E. Dardi ,  William R. Freeman, Jr.

Inventor： Dinesh K. Gupta ,  Louis E. Dardi ,  William R. Freeman, Jr.

IPC: C23C10/00 ,  C23C10/52 ,  C23C28/02 ,  C23F17/00 ,  B05D3/06

CPC classification number: C23F17/00 ,  C22C19/03 ,  C22C19/07 ,  C22C38/00 ,  C23C10/00 ,  C23C10/52 ,  C23C28/021 ,  C23C28/023 ,  C23C28/028 ,  Y10T428/12931 ,  Y10T428/12937 ,  Y10T428/12944

Abstract: A process for providing coatings on metal articles whereby the articles will be resistant to corrosion at elevated temperatures. The process involves the application of an overlay on an article surface, the overlay comprising a ductile metal of a composition normally resistant to corrosion at elevated temperatures. An outer layer of aluminide or metal which is resistant to corrosion at elevated temperatures but which is subject to embrittlement at such temperatures is applied to complete the coating. Porosity in the coating is then eliminated and a high integrity corrosion resistant coating not subject to cracking is obtained by heating the article in a gaseous atmosphere to elevated temperature and simultaneously applying isostatic pressure to the article.

Abstract translation: 一种用于在金属制品上提供涂层的方法，其中制品将在高温下耐腐蚀。 该方法涉及在物品表面上施加覆盖层，所述覆盖物包括通常耐高温腐蚀的组合物的延性金属。 施加在高温下耐腐蚀但在这种温度下易于脆化的铝化物或金属的外层，以完成涂层。 然后消除涂层中的孔隙率，并且通过在气态气氛中将制品加热到高温并同时对制品施加等静压力，获得不会破裂的高完整性耐腐蚀涂层。