FR2271299A1 - - Google Patents

Info

Publication number
FR2271299A1
FR2271299A1 FR7514277A FR7514277A FR2271299A1 FR 2271299 A1 FR2271299 A1 FR 2271299A1 FR 7514277 A FR7514277 A FR 7514277A FR 7514277 A FR7514277 A FR 7514277A FR 2271299 A1 FR2271299 A1 FR 2271299A1
Authority
FR
France
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7514277A
Other languages
French (fr)
Other versions
FR2271299B1 (pt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RTX Corp
Original Assignee
United Technologies Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United Technologies Corp filed Critical United Technologies Corp
Publication of FR2271299A1 publication Critical patent/FR2271299A1/fr
Application granted granted Critical
Publication of FR2271299B1 publication Critical patent/FR2271299B1/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/07—Alloys based on nickel or cobalt based on cobalt
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
    • C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
    • C22C19/052—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 40%
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14—Metallic material, boron or silicon
    • C23C14/16—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/923—Physical dimension
    • Y10S428/924—Composite
    • Y10S428/926—Thickness of individual layer specified
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12931—Co-, Fe-, or Ni-base components, alternative to each other
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12986—Adjacent functionally defined components

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Physical Vapour Deposition (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
FR7514277A 1974-05-13 1975-05-07 Expired FR2271299B1 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US469186A US3928026A (en) 1974-05-13 1974-05-13 High temperature nicocraly coatings

Publications (2)

Publication Number Publication Date
FR2271299A1 true FR2271299A1 (pt) 1975-12-12
FR2271299B1 FR2271299B1 (pt) 1978-06-09

Family

ID=23862796

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7514277A Expired FR2271299B1 (pt) 1974-05-13 1975-05-07

Country Status (10)

Country Link
US (1) US3928026A (pt)
JP (1) JPS5919977B2 (pt)
CA (1) CA1045421A (pt)
CH (1) CH606454A5 (pt)
DE (1) DE2520192C2 (pt)
FR (1) FR2271299B1 (pt)
GB (1) GB1489796A (pt)
IL (1) IL47181A (pt)
IT (1) IT1038126B (pt)
SE (1) SE410476B (pt)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2406000A1 (fr) * 1977-10-17 1979-05-11 United Technologies Corp Articles en superalliage de nickel, de cobalt et/ou de fer revetus, resistant a l'oxydation et a l'usure
FR2511043A1 (fr) * 1981-08-05 1983-02-11 United Technologies Corp Revetement de surface a forte teneur en yttrium

Families Citing this family (84)

* Cited by examiner, † Cited by third party
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US3993454A (en) * 1975-06-23 1976-11-23 United Technologies Corporation Alumina forming coatings containing hafnium for high temperature applications
USRE33876E (en) * 1975-09-11 1992-04-07 United Technologies Corporation Thermal barrier coating for nickel and cobalt base super alloys
US4029477A (en) * 1975-10-29 1977-06-14 General Electric Company Coated Ni-Cr base dispersion-modified alloy article
USRE30995E (en) * 1977-06-09 1982-07-13 General Electric Company High integrity CoCrAl(Y) coated nickel-base superalloys
USRE31339E (en) * 1977-08-03 1983-08-09 Howmet Turbine Components Corporation Process for producing elevated temperature corrosion resistant metal articles
US4198442A (en) * 1977-10-31 1980-04-15 Howmet Turbine Components Corporation Method for producing elevated temperature corrosion resistant articles
US4275124A (en) * 1978-10-10 1981-06-23 United Technologies Corporation Carbon bearing MCrAlY coating
US4275090A (en) * 1978-10-10 1981-06-23 United Technologies Corporation Process for carbon bearing MCrAlY coating
US4339509A (en) * 1979-05-29 1982-07-13 Howmet Turbine Components Corporation Superalloy coating composition with oxidation and/or sulfidation resistance
US4313760A (en) * 1979-05-29 1982-02-02 Howmet Turbine Components Corporation Superalloy coating composition
US4346137A (en) * 1979-12-19 1982-08-24 United Technologies Corporation High temperature fatigue oxidation resistant coating on superalloy substrate
US4372377A (en) * 1981-03-16 1983-02-08 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Heat pipes containing alkali metal working fluid
US4615865A (en) * 1981-08-05 1986-10-07 United Technologies Corporation Overlay coatings with high yttrium contents
US4419416A (en) * 1981-08-05 1983-12-06 United Technologies Corporation Overlay coatings for superalloys
US4514469A (en) * 1981-09-10 1985-04-30 United Technologies Corporation Peened overlay coatings
CA1212020A (en) * 1981-09-14 1986-09-30 David N. Duhl Minor element additions to single crystals for improved oxidation resistance
US4451299A (en) * 1982-09-22 1984-05-29 United Technologies Corporation High temperature coatings by surface melting
US5035958A (en) * 1983-12-27 1991-07-30 General Electric Company Nickel-base superalloys especially useful as compatible protective environmental coatings for advanced superaloys
US5043138A (en) * 1983-12-27 1991-08-27 General Electric Company Yttrium and yttrium-silicon bearing nickel-base superalloys especially useful as compatible coatings for advanced superalloys
GB2152082A (en) * 1983-12-27 1985-07-31 United Technologies Corp Enhancement of superalloy resistance to environmental degradation
US4677035A (en) * 1984-12-06 1987-06-30 Avco Corp. High strength nickel base single crystal alloys
US4711665A (en) * 1985-07-26 1987-12-08 Pennsylvania Research Corporation Oxidation resistant alloy
US4889589A (en) * 1986-06-26 1989-12-26 United Technologies Corporation Gaseous removal of ceramic coatings
US4729799A (en) * 1986-06-30 1988-03-08 United Technologies Corporation Stress relief of single crystal superalloy articles
US4842953A (en) * 1986-11-28 1989-06-27 General Electric Company Abradable article, and powder and method for making
US4937042A (en) * 1986-11-28 1990-06-26 General Electric Company Method for making an abradable article
US5277936A (en) * 1987-11-19 1994-01-11 United Technologies Corporation Oxide containing MCrAlY-type overlay coatings
US4758480A (en) * 1987-12-22 1988-07-19 United Technologies Corporation Substrate tailored coatings
US4851300A (en) * 1988-05-09 1989-07-25 United Technologies Corporation Precoat for improving platinum thin film adhesion
US4916022A (en) * 1988-11-03 1990-04-10 Allied-Signal Inc. Titania doped ceramic thermal barrier coatings
US5015502A (en) * 1988-11-03 1991-05-14 Allied-Signal Inc. Ceramic thermal barrier coating with alumina interlayer
US4944858A (en) * 1988-12-08 1990-07-31 United Technologies Corporation Method for applying diffusion aluminide coating
US5039477A (en) * 1989-06-02 1991-08-13 Sugitani Kinzoku Kogyo Kabushiki Kaisha Powdered metal spray coating material
US5273712A (en) * 1989-08-10 1993-12-28 Siemens Aktiengesellschaft Highly corrosion and/or oxidation-resistant protective coating containing rhenium
DE3926479A1 (de) * 1989-08-10 1991-02-14 Siemens Ag Rheniumhaltige schutzbeschichtung, mit grosser korrosions- und/oder oxidationsbestaendigkeit
US5582635A (en) * 1990-08-10 1996-12-10 Siemens Aktiengesellschaft High temperature-resistant corrosion protection coating for a component in particular a gas turbine component
KR930002869B1 (ko) * 1990-12-31 1993-04-12 포항종합제철 주식회사 소둔가열로용 방열튜브 및 그 제조방법
AU3323193A (en) * 1991-12-24 1993-07-28 Detroit Diesel Corporation Thermal barrier coating and method of depositing the same on combustion chamber component surfaces
US5538796A (en) * 1992-10-13 1996-07-23 General Electric Company Thermal barrier coating system having no bond coat
US6333121B1 (en) * 1992-10-13 2001-12-25 General Electric Company Low-sulfur article having a platinum-aluminide protective layer and its preparation
US5455119A (en) * 1993-11-08 1995-10-03 Praxair S.T. Technology, Inc. Coating composition having good corrosion and oxidation resistance
US5783318A (en) * 1994-06-22 1998-07-21 United Technologies Corporation Repaired nickel based superalloy
CN1068387C (zh) * 1994-06-24 2001-07-11 普拉塞尔·S·T·技术有限公司 一种分散有氧化物的金属铬铝钇基涂层的生产方法
US5716720A (en) * 1995-03-21 1998-02-10 Howmet Corporation Thermal barrier coating system with intermediate phase bondcoat
DE69615517T2 (de) 1995-12-22 2002-05-16 General Electric Co., Schenectady Körper mit Hochtemperatur-Schutzschicht und Verfahren zum Beschichten
US5824423A (en) * 1996-02-07 1998-10-20 N.V. Interturbine Thermal barrier coating system and methods
US5987882A (en) * 1996-04-19 1999-11-23 Engelhard Corporation System for reduction of harmful exhaust emissions from diesel engines
US6422008B2 (en) 1996-04-19 2002-07-23 Engelhard Corporation System for reduction of harmful exhaust emissions from diesel engines
UA32758C2 (uk) * 1998-03-23 2002-04-15 Юнайтед Технолоджіз Корпорейшн Пратт Енд Уітні Спосіб електронно-променевого одержання покриттів, вільних від лідерів
US6306515B1 (en) * 1998-08-12 2001-10-23 Siemens Westinghouse Power Corporation Thermal barrier and overlay coating systems comprising composite metal/metal oxide bond coating layers
EP1094131B1 (en) * 1999-10-23 2004-05-06 ROLLS-ROYCE plc A corrosion protective coating for a metallic article and a method of applying a corrosion protective coating to a metallic article
US6365236B1 (en) 1999-12-20 2002-04-02 United Technologies Corporation Method for producing ceramic coatings containing layered porosity
US6607789B1 (en) 2001-04-26 2003-08-19 General Electric Company Plasma sprayed thermal bond coat system
US6655369B2 (en) 2001-08-01 2003-12-02 Diesel Engine Transformations Llc Catalytic combustion surfaces and method for creating catalytic combustion surfaces
JP2003147464A (ja) 2001-11-02 2003-05-21 Tocalo Co Ltd 高温強度部材
WO2004016819A1 (de) * 2002-08-16 2004-02-26 Alstom Technology Ltd Intermetallisches material und verwendung dieses materials
JP4173762B2 (ja) * 2003-04-04 2008-10-29 株式会社神戸製鋼所 α型結晶構造主体のアルミナ皮膜の製造方法および積層皮膜被覆部材の製造方法
US6769878B1 (en) * 2003-05-09 2004-08-03 Power Systems Mfg. Llc Turbine blade airfoil
EP1541713A1 (de) * 2003-12-11 2005-06-15 Siemens Aktiengesellschaft Metallische Schutzschicht
EP1780294A1 (de) * 2005-10-25 2007-05-02 Siemens Aktiengesellschaft Legierung, Schutzschicht zum Schutz eines Bauteils gegen Korrosion und Oxidation bei hohen Temperaturen und Bauteil
EP1783236A1 (de) * 2005-11-04 2007-05-09 Siemens Aktiengesellschaft Legierung, Schutzschicht zum Schutz eines Bauteils gegen Korrosion und/oder Oxidation bei hohen Temperaturen und Bauteil
US8920883B2 (en) * 2005-12-28 2014-12-30 Ansaldo Energia S.P.A. Alloy composition for the manufacture of protective coatings, its use, process for its application and super-alloy articles coated with the same composition
US20070207328A1 (en) * 2006-03-01 2007-09-06 United Technologies Corporation High density thermal barrier coating
US20070248457A1 (en) * 2006-04-25 2007-10-25 General Electric Company Rub coating for gas turbine engine compressors
EP1925687A1 (de) * 2006-11-24 2008-05-28 Siemens Aktiengesellschaft NiCoCrAI-Schicht und metallisches Schichtsystem
US7879459B2 (en) * 2007-06-27 2011-02-01 United Technologies Corporation Metallic alloy composition and protective coating
US8043718B2 (en) * 2007-09-14 2011-10-25 Siemens Energy, Inc. Combustion turbine component having rare earth NiCrAl coating and associated methods
US8039117B2 (en) * 2007-09-14 2011-10-18 Siemens Energy, Inc. Combustion turbine component having rare earth NiCoCrAl coating and associated methods
US7867626B2 (en) * 2007-09-14 2011-01-11 Siemens Energy, Inc. Combustion turbine component having rare earth FeCrAI coating and associated methods
US8043717B2 (en) * 2007-09-14 2011-10-25 Siemens Energy, Inc. Combustion turbine component having rare earth CoNiCrAl coating and associated methods
DE102007048484A1 (de) 2007-10-09 2009-04-16 Man Turbo Ag Heißgasgeführte Komponente einer Strömungsmaschine
US20100068405A1 (en) * 2008-09-15 2010-03-18 Shinde Sachin R Method of forming metallic carbide based wear resistant coating on a combustion turbine component
EP2216421A1 (de) * 2009-01-29 2010-08-11 Siemens Aktiengesellschaft Legierung, Schutzschicht und Bauteil
WO2011042052A1 (en) * 2009-10-07 2011-04-14 Siemens Aktiengesellschaft Component with a substrate and a protective layer
RU2012140953A (ru) * 2010-02-26 2014-04-10 Сименс Акциенгезелльшафт Двухслойное металлическое связующее покрытие
US20130157078A1 (en) * 2011-12-19 2013-06-20 General Electric Company Nickel-Cobalt-Based Alloy And Bond Coat And Bond Coated Articles Incorporating The Same
US20130323066A1 (en) * 2012-05-31 2013-12-05 Monika D. Kinstler Maskant for fluoride ion cleaning
CA2904185C (en) * 2013-03-13 2021-02-23 General Electric Company Coatings for metallic substrates
DE102013209189A1 (de) * 2013-05-17 2014-11-20 Siemens Aktiengesellschaft Schutzbeschichtung und Gasturbinenkomponente mit der Schutzbeschichtung
WO2015077163A1 (en) * 2013-11-19 2015-05-28 United Technologies Corporation Article having variable composition coating
CN111560584A (zh) * 2020-05-22 2020-08-21 江苏大学 一种航空发动机叶片高性能热障涂层及多工艺组合制备方法
CN114807823B (zh) * 2022-04-13 2023-04-07 四川大学 一种燃气轮机热端部件用高温防护涂层制备方法
US20240052499A1 (en) 2022-08-09 2024-02-15 Zhihong Tang High performance alumina-forming multi- element materials for high temperature applications
CN115747795B (zh) * 2022-12-05 2024-03-26 江苏大学 一种高服役寿命的热障涂层粘结层及其制备方法

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GB734210A (en) * 1952-12-09 1955-07-27 Rolls Royce Improvements relating to processes of manufacturing turbine blades from heat-resisting alloys
US3754902A (en) * 1968-06-05 1973-08-28 United Aircraft Corp Nickel base superalloy resistant to oxidation erosion
US3649225A (en) * 1969-11-17 1972-03-14 United Aircraft Corp Composite coating for the superalloys
US3754903A (en) * 1970-09-15 1973-08-28 United Aircraft Corp High temperature oxidation resistant coating alloy
US3676085A (en) * 1971-02-18 1972-07-11 United Aircraft Corp Cobalt base coating for the superalloys

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2406000A1 (fr) * 1977-10-17 1979-05-11 United Technologies Corp Articles en superalliage de nickel, de cobalt et/ou de fer revetus, resistant a l'oxydation et a l'usure
FR2511043A1 (fr) * 1981-08-05 1983-02-11 United Technologies Corp Revetement de surface a forte teneur en yttrium

Also Published As

Publication number Publication date
US3928026A (en) 1975-12-23
FR2271299B1 (pt) 1978-06-09
IL47181A (en) 1977-07-31
IL47181A0 (en) 1975-08-31
CH606454A5 (pt) 1978-10-31
GB1489796A (en) 1977-10-26
CA1045421A (en) 1979-01-02
DE2520192C2 (de) 1986-02-06
SE7505339L (sv) 1975-11-14
IT1038126B (it) 1979-11-20
JPS5919977B2 (ja) 1984-05-10
JPS50158531A (pt) 1975-12-22
DE2520192A1 (de) 1975-11-27
SE410476B (sv) 1979-10-15

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