EP0188057A1 - Verschleissfeste Überzüge - Google Patents

Verschleissfeste Überzüge Download PDF

Info

Publication number: EP0188057A1
Authority: EP; European Patent Office
Prior art keywords: layer; substrate; coating; tantalum; palladium
Prior art date: 1984-11-19
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP85307106A

Other languages

English (en)

French (fr)

Inventor

Subhash K. Naik

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.)

Avco Corp

Original Assignee

Avco 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.)

1984-11-19

Filing date

1985-10-03

Publication date

1986-07-23

1985-10-03 Application filed by Avco Corp filed Critical Avco Corp

1986-07-23 Publication of EP0188057A1 publication Critical patent/EP0188057A1/de

Status Withdrawn legal-status Critical Current

Links

238000000576 coating method Methods 0.000 title claims abstract description 73
230000003628 erosive effect Effects 0.000 title claims abstract description 23
239000000758 substrate Substances 0.000 claims abstract description 69
239000011248 coating agent Substances 0.000 claims abstract description 54
PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 47
KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims abstract description 40
229910052715 tantalum Inorganic materials 0.000 claims abstract description 30
GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims abstract description 26
239000011651 chromium Substances 0.000 claims abstract description 24
229910052804 chromium Inorganic materials 0.000 claims abstract description 23
229910052759 nickel Inorganic materials 0.000 claims abstract description 23
229910052763 palladium Inorganic materials 0.000 claims abstract description 21
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 20
ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 11
229910052796 boron Inorganic materials 0.000 claims abstract description 10
238000000034 method Methods 0.000 claims description 30
BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 20
239000000463 material Substances 0.000 claims description 17
238000004544 sputter deposition Methods 0.000 claims description 12
239000010935 stainless steel Substances 0.000 claims description 12
229910052697 platinum Inorganic materials 0.000 claims description 11
238000000151 deposition Methods 0.000 claims description 10
229910001220 stainless steel Inorganic materials 0.000 claims description 10
230000008569 process Effects 0.000 claims description 6
238000009713 electroplating Methods 0.000 claims description 5
RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
239000010936 titanium Substances 0.000 claims description 3
KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 2
229910052707 ruthenium Inorganic materials 0.000 claims description 2
229910052719 titanium Inorganic materials 0.000 claims description 2
238000004519 manufacturing process Methods 0.000 claims 1
230000008021 deposition Effects 0.000 abstract description 9
230000014759 maintenance of location Effects 0.000 abstract description 2
239000010410 layer Substances 0.000 description 31
238000005229 chemical vapour deposition Methods 0.000 description 11
229910052751 metal Inorganic materials 0.000 description 8
239000002184 metal Substances 0.000 description 8
-1 platinum metals Chemical class 0.000 description 7
238000007747 plating Methods 0.000 description 6
238000012360 testing method Methods 0.000 description 6
239000007789 gas Substances 0.000 description 5
239000011229 interlayer Substances 0.000 description 5
239000004576 sand Substances 0.000 description 5
229910001069 Ti alloy Inorganic materials 0.000 description 4
XTDAIYZKROTZLD-UHFFFAOYSA-N boranylidynetantalum Chemical compound [Ta]#B XTDAIYZKROTZLD-UHFFFAOYSA-N 0.000 description 4
238000006243 chemical reaction Methods 0.000 description 4
230000009467 reduction Effects 0.000 description 4
229910001256 stainless steel alloy Inorganic materials 0.000 description 4
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
239000000956 alloy Substances 0.000 description 3
230000004888 barrier function Effects 0.000 description 3
230000000694 effects Effects 0.000 description 3
239000000843 powder Substances 0.000 description 3
XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
229910000521 B alloy Inorganic materials 0.000 description 2
241000404144 Pieris melete Species 0.000 description 2
229910004533 TaB2 Inorganic materials 0.000 description 2
229910004537 TaCl5 Inorganic materials 0.000 description 2
230000002378 acidificating effect Effects 0.000 description 2
230000004913 activation Effects 0.000 description 2
229910045601 alloy Inorganic materials 0.000 description 2
238000013459 approach Methods 0.000 description 2
UHPOHYZTPBGPKO-UHFFFAOYSA-N bis(boranylidyne)chromium Chemical compound B#[Cr]#B UHPOHYZTPBGPKO-UHFFFAOYSA-N 0.000 description 2
238000004140 cleaning Methods 0.000 description 2
239000011247 coating layer Substances 0.000 description 2
239000008246 gaseous mixture Substances 0.000 description 2
230000000977 initiatory effect Effects 0.000 description 2
238000007733 ion plating Methods 0.000 description 2
239000000203 mixture Substances 0.000 description 2
NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Chemical compound [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 description 2
239000003870 refractory metal Substances 0.000 description 2
OEIMLTQPLAGXMX-UHFFFAOYSA-I tantalum(v) chloride Chemical compound Cl[Ta](Cl)(Cl)(Cl)Cl OEIMLTQPLAGXMX-UHFFFAOYSA-I 0.000 description 2
WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
229910052721 tungsten Inorganic materials 0.000 description 2
239000010937 tungsten Substances 0.000 description 2
229910000851 Alloy steel Inorganic materials 0.000 description 1
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
229910019918 CrB2 Inorganic materials 0.000 description 1
ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
HJSXWIZOWRQPPY-UHFFFAOYSA-N O=S=O.O=S=O.[Ni+2] Chemical compound O=S=O.O=S=O.[Ni+2] HJSXWIZOWRQPPY-UHFFFAOYSA-N 0.000 description 1
229910001252 Pd alloy Inorganic materials 0.000 description 1
229910052770 Uranium Inorganic materials 0.000 description 1
XROFWZDRDSBPGE-UHFFFAOYSA-K [Cl-].S(=O)(=O)([O-])[O-].[Ni+3] Chemical compound [Cl-].S(=O)(=O)([O-])[O-].[Ni+3] XROFWZDRDSBPGE-UHFFFAOYSA-K 0.000 description 1
229910052786 argon Inorganic materials 0.000 description 1
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
239000010953 base metal Substances 0.000 description 1
229910052799 carbon Inorganic materials 0.000 description 1
230000015556 catabolic process Effects 0.000 description 1
239000003153 chemical reaction reagent Substances 0.000 description 1
239000003795 chemical substances by application Substances 0.000 description 1
229910017052 cobalt Inorganic materials 0.000 description 1
239000010941 cobalt Substances 0.000 description 1
GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
230000000052 comparative effect Effects 0.000 description 1
239000002131 composite material Substances 0.000 description 1
150000001875 compounds Chemical class 0.000 description 1
230000003750 conditioning effect Effects 0.000 description 1
239000000356 contaminant Substances 0.000 description 1
239000013078 crystal Substances 0.000 description 1
230000001351 cycling effect Effects 0.000 description 1
238000006731 degradation reaction Methods 0.000 description 1
230000002939 deleterious effect Effects 0.000 description 1
239000003599 detergent Substances 0.000 description 1
239000003085 diluting agent Substances 0.000 description 1
239000000428 dust Substances 0.000 description 1
238000007772 electroless plating Methods 0.000 description 1
230000005496 eutectics Effects 0.000 description 1
238000009661 fatigue test Methods 0.000 description 1
239000004519 grease Substances 0.000 description 1
238000010438 heat treatment Methods 0.000 description 1
239000001257 hydrogen Substances 0.000 description 1
229910052739 hydrogen Inorganic materials 0.000 description 1
238000011065 in-situ storage Methods 0.000 description 1
238000001802 infusion Methods 0.000 description 1
229910001092 metal group alloy Inorganic materials 0.000 description 1
229910044991 metal oxide Inorganic materials 0.000 description 1
150000004706 metal oxides Chemical class 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000004048 modification Effects 0.000 description 1
229910052750 molybdenum Inorganic materials 0.000 description 1
239000011733 molybdenum Substances 0.000 description 1
239000001301 oxygen Substances 0.000 description 1
229910052760 oxygen Inorganic materials 0.000 description 1
238000012856 packing Methods 0.000 description 1
150000002940 palladium Chemical class 0.000 description 1
238000005240 physical vapour deposition Methods 0.000 description 1
235000003270 potassium fluoride Nutrition 0.000 description 1
239000011698 potassium fluoride Substances 0.000 description 1
230000002028 premature Effects 0.000 description 1
238000005480 shot peening Methods 0.000 description 1
229910021332 silicide Inorganic materials 0.000 description 1
239000002904 solvent Substances 0.000 description 1
239000010959 steel Substances 0.000 description 1
229910000601 superalloy Inorganic materials 0.000 description 1
239000013077 target material Substances 0.000 description 1
238000007740 vapor deposition Methods 0.000 description 1

Classifications

- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
- F04D29/324—Blades

Definitions

This invention relates, in general, to coatings for metallic substrates and more particularly to novel two-layered erosion-resistant coatings which may be applied to gas turbine engine compressor blades without an attendant loss in fatigue life.
Gas turbine engine compressor blades are conventionally fabricated from metallic substrates such as stainless steel or titanium alloys. The blades are subjected to severe erosion when operated in sand and dust environments. Blade erosion reduces compressor efficiency, requiring premature blade replacement.
erosion resistant coatings such as tungsten and carbon (U.S. 4,147,820), platinum metals (U.S. 3,309,292; U.S. 3,890,456) and boron (U.S. 2,822,302).
these coatings which have been identified by the art for imparting erosion resistance to substrates such as titanium and stainless steel alloy compressor blades promote sharp drops in fatigue properties of the substrates creating the initiation of cracks and fractures with an attendant reduction in the service life of the substrate. This effect of the fatigue life of the coated substrate is believed due to the fact that the erosion-resistant coatings of the prior art are hard materials which produce residual stress and accompanying strains in the substrate thereby accelerating a reduction in fatigue strength of the substrate.
first layer which is applied directly to a substrate comprises palladium, platinum or nickel and the second layer, which overlies said first layer, comprises tantalum or chromium boride.
first layer which is applied directly to a substrate
second layer which overlies said first layer
the coefficients of thermal expansion of the whole system, i.e., substrate, first layer and over layer, are matched closely to reduce residual stress and accompanying strains, whereby the fatigue life of the coated substrate is not deleteriously affected. Additional gains in fatigue life retention are achieved by using low coating deposition temperatures.
Fatigue failure is believed to be the result of the application of fluctuating stresses over a long period of time.
a major source of stress results from the difference in the coefficient of thermal expansion between the substrate material and the coating material. This difference in the coefficient of thermal expansion results in the coating being stressed by the substrate during thermal coating process cycling.
the erosion-resistant coatings of the present invention ameliorate the problem of thermal expansion by using coating layers which have closely matched coefficients of thermal expansion so that it approaches the coefficient of thermal expansion of typical metallic alloy substrate materials. This is illustrated in the Table below which contains the coefficient of thermal expansion of several different coating materials and commonly used substrate materials.
Ni, Pt, Pd, TaB 2 and CrB 2 have coefficients of thermal expansion which are closely matched to each other and also closely approach the coefficient of thermal expansion of a variety of stainless steel and titanium alloy substrates commonly used in gas turbine engine components.
the coated substrates of the present invention exhibit excellent erosion- resistance with no deleterious reduction in fatigue life and this result is believed to be due to the close matching of the coefficient of thermal expansion between the coating layers and the substrate composition.
the coatings of the present invention are thus distinguished from erosion resistant coatings of the prior art which exhibit sharp drops in fatigue properties, thus creating the initiation of cracks and fractures.
Illustrative of this prior art is McCaughna, U.S. Patent No. 2,882,302 which discloses the plating of a refractory metal (e.g., tungsten, molybdenum or tantalum) with boron.
a platinum interlayer may be placed between the refractory metal and the boride layer to act as a barrier.
palladium or nickel acts as an interlayer between the substrate material (e.g., stainless steel) and the overlayer (i.e. boron and tantalum or chromium).
D ils U.S. Patent No. 3,890,456 discloses a coating technique for depositing layers of various materials on turbine blades. At column 3, lines 44-47, Dils discusses deposition of a noble metal, such as platinum, rhodium or palladium.
the layers comprising the coating of this invention may be of any suitable thickness. Particularly good results are obtained with the palladium, platinum or nickel-containing layer being between about 0.0001 inches to about 0.002 inches and the tantalum or chromium diboride layer being between about 0.001 inches and 0.003 inches. Optimum results are obtained when the palladium or nickel-containing layer is about between 0.0003 and about 0.001 inches and the tantalum or chromium boride overlayer is about 0.002 inches.
Any suitable coating technique may be used to apply the first layer of the coating to the substrate material.
Typical methods include electroplating, sputtering, ion-plating, pack coating, and vapor deposition, among others. While any suitable technique may be used, it is preferred to employ an electroplating, ion plating, sputtering or chemical vapor deposition (CV D ) process. Any suitable technique, likewise, may be used to apply the erosion-resistant tantalum or chromium boride layer to the palladium or nickel interlayer, a CVD or sputtering process being preferred.
the surface of the substrate to be coated is first shot peened to provide compressive stresses therein.
the shot peened surface is then thoroughly cleaned with a detergent, chlorinated solvent, or acidic or alkaline cleaning reagent to remove any remaining oil or light metal oxides, scale or other contaminants.
the cleaned substrate is activated to effect final removal of adsorbed oxygen.
the first layer is applied to the surface of the substrate by such conventional coating techniques as electroless-plating, CVD or sputtering. If electroplating is the coating method chosen, then activation of the substrate surface is conveniently accomplished by anodic or cathodic electrocleaning in an alkaline or acidic cleaning bath by the passage therethrough of the required electrical current. Plating is then accomplished using conventional plating baths such as a Watts nickel sulfate-chloride bath or a palladium diamino nitrite bath.
CVD is elected for the coating application, then activation is accomplished by the passage of a hydrogen gas over the substrate surface. CVD is then accomplished using the volatilizable halide salt of the metal to be deposited and reacting these gases with hydrogen or other games at the appropriate temperature, e.g. 500° to 1850Qr to effect deposition of the metallic layer.
bias sputtering can be used to activate the substrate.
Deposition of the first metallic interlayer is accomplished with sputtering or ion-vapor plating using high purity targets of the desired metal coating material.
Coating application of the second layer of tantalum or chromium boride over the first metallic layer preferably is accomplished at a temperature not exceeding 1900°F by CVD, sputtering, pack or other conventional coating processes.
stress in the coating system is a function of the difference in the coefficients of thermal expansion between coating ( ⁇ ) and the difference in temperature between the substrate (room temperature) and the coating deposition temperature (A T).
stress in the coating can be reduced by reducing the ⁇ ⁇ by using a coating material having a coefficient of expansion closely corresponding to that of the substrate and reducing the AT by using a lower temperature at which the coating is deposited.
Tantalum or chromium boride coatings are conventionally applied at 1000 - 1900°F.
the tantalum or chromium boride erosion-resistant coating is applied at a lower temperature i.e. a temperature between about 800°F and about 1400°F whereby improved fatigue life of the substrate is achieved.
a gaseous mixture of a tantalum halide, e.g. TaCl 5 , a boron halide, e.g. BC1 3 , hydrogen gas and an inert gaseous diluent such as argon is flowed into a reaction chamber containing the first layer coated substrate heated to a temperature of about 1800 - 2000°F and the gaseous mixture is allowed to react and deposit on the heated substrate.
the surfaces of individual C450 stainless steel substrates were first thoroughly cleaned free of all dirt, grease and other objectionable foreign matter followed by conditioning by means of shot peening.
the cleaned surface of the substrate was then electroplated with a 0.5 - 1.5 mil coating of nickel using a Watts nickel sulfanate plating bath.
the reaction chamber was maintained at 200 torr.
the deposit was made at a rate of 0.0003 to O.OOlin/hr to the required coating thickness.
a second coating consisting of a 0.5 to 1.5 mil thick Cr-B alloy was applied to the nickel plated substrate surface using a packing technique.
the nickel plated substrate was successively put in a Cr powder pack and heated to about 1900°F followed by a boron powder pack at about 1400°F.
the coated substrate specimens were tested for erosion- resistance using S.S. White erosion testing equipment. When using this equipment, the coated specimen is subjected to a pressurized blast of sand, which is impinged on the specimen from a 0.5 inch diameter nozzle spaced from the specimen.
the conditions under which the erosion testing was performed were as follows:
the specimens were blasted with sand at 30° and 90° sand impingement angles for 5 minutes.
the erosive wear was measured as the volume of coating material lost per minute of sand impingement.
the results of the erosive wear tests are recorded in Table I below.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Chemical & Material Sciences (AREA)
General Engineering & Computer Science (AREA)
Metallurgy (AREA)
Materials Engineering (AREA)
Chemical Kinetics & Catalysis (AREA)
Organic Chemistry (AREA)
Other Surface Treatments For Metallic Materials (AREA)
Physical Vapour Deposition (AREA)
Chemical Vapour Deposition (AREA)
Laminated Bodies (AREA)
Electroplating Methods And Accessories (AREA)
Turbine Rotor Nozzle Sealing (AREA)
Structures Of Non-Positive Displacement Pumps (AREA)

EP85307106A 1984-11-19 1985-10-03 Verschleissfeste Überzüge Withdrawn EP0188057A1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US67291184A	1984-11-19	1984-11-19
US672911		1984-11-19

Publications (1)

Publication Number	Publication Date
EP0188057A1 true EP0188057A1 (de)	1986-07-23

Family

ID=24700541

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP85307106A Withdrawn EP0188057A1 (de)	1984-11-19	1985-10-03	Verschleissfeste Überzüge

Country Status (3)

Country	Link
EP (1)	EP0188057A1 (de)
JP (1)	JPS61127872A (de)
BR (1)	BR8505579A (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4839237A (en) *	1986-05-28	1989-06-13	Alsthom	Method of laying a cobalt-chromium-tungsten protective coating on a blade made of a tungsten alloy including vanadium, and a blade coated thereby
EP0322812A3 (de) *	1987-12-31	1989-11-08	Air Products And Chemicals, Inc.	Harte äussere Beschichtungen, aufgetragen auf Titan oder Titanlegierungen
WO1990002218A1 (de) *	1988-08-26	1990-03-08	Multi-Arc Gmbh	Verfahren zur plasmabeschichtung von gegenständen mit einem hartstoff
US5009966A (en) *	1987-12-31	1991-04-23	Diwakar Garg	Hard outer coatings deposited on titanium or titanium alloys
FR2665185A1 (fr) *	1990-07-26	1992-01-31	Snecma	Revetement anti-usure sur un substrat a base titane.
US5126213A (en) *	1987-05-18	1992-06-30	The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland	Coated near-alpha titanium articles
EP0605179A1 (de) *	1992-12-22	1994-07-06	Citizen Watch Co. Ltd.	Mit hartem Kohlenstoff beschichtetes Material
US7744986B2 (en)	2005-08-16	2010-06-29	Honeywell International Inc.	Multilayered erosion resistant coating for gas turbines
EP1805344B1 (de) *	2004-10-16	2011-03-16	MTU Aero Engines AG	Verfahren zur herstellung eines mit einer verschleissschutzbeschichtung beschichteten bauteils
FR3032725A1 (fr) *	2015-02-12	2016-08-19	Snecma	Procede de depot d'un revetement de protection contre l'erosion sur une piece metallique
US12404776B2 (en)	2023-04-14	2025-09-02	Rolls-Royce North American Technologies, Inc.	Airfoil with protective coating

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS63297737A (ja) *	1987-05-29	1988-12-05	Katsukawa Mikaroomu Kogyo Kk	ターボファンエンジンの高力アルミニウム合金製空気整流用静翼板のエロージョンの防止方法
KR20080012744A (ko) *	2006-08-03	2008-02-12	유나이티드 테크놀로지스 코포레이션	부식 코팅되는 부품의 코팅전 버니싱

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Publication number	Priority date	Publication date	Assignee	Title
DE1954366B1 (de) *	1969-10-29	1971-06-24	Heraeus Gmbh W C	Verfahren und Vorrichtung zur Herstellung von harten UEberzuegen aus Titan- und/oder Tantalverbindungen
FR2110202A1 (de) *	1970-10-02	1972-06-02	Labo Suisse Rech Horlo
FR2185696A1 (de) *	1972-05-22	1974-01-04	Union Carbide Corp
US3824134A (en) *	1971-10-12	1974-07-16	Thornhill Craver Co	Metalliding process
FR2447980A1 (fr) *	1979-02-01	1980-08-29	Johnson Matthey Co Ltd	Procede de revetement de substrat metallique et substrat metallique ainsi revetu
EP0015451A1 (de) *	1979-03-02	1980-09-17	Carboloy Inc.	Mit Borid überzogenes Sinterkarbid

1985
- 1985-10-03 EP EP85307106A patent/EP0188057A1/de not_active Withdrawn
- 1985-10-24 JP JP60236536A patent/JPS61127872A/ja active Pending
- 1985-11-07 BR BR8505579A patent/BR8505579A/pt unknown

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1954366B1 (de) *	1969-10-29	1971-06-24	Heraeus Gmbh W C	Verfahren und Vorrichtung zur Herstellung von harten UEberzuegen aus Titan- und/oder Tantalverbindungen
FR2110202A1 (de) *	1970-10-02	1972-06-02	Labo Suisse Rech Horlo
US3824134A (en) *	1971-10-12	1974-07-16	Thornhill Craver Co	Metalliding process
FR2185696A1 (de) *	1972-05-22	1974-01-04	Union Carbide Corp
FR2447980A1 (fr) *	1979-02-01	1980-08-29	Johnson Matthey Co Ltd	Procede de revetement de substrat metallique et substrat metallique ainsi revetu
EP0015451A1 (de) *	1979-03-02	1980-09-17	Carboloy Inc.	Mit Borid überzogenes Sinterkarbid

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, vol. 96, no. 12, March 1982, page 320, no. 90399w, Columbus, Ohio, US; & PL - A - 109 472 (OSRODEK BADAWCZO-ROZWOJOWY MASZYN WLOKIENNICZYCH alpha POLMATEX-CENARO") 30-06-1981 *

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4839237A (en) *	1986-05-28	1989-06-13	Alsthom	Method of laying a cobalt-chromium-tungsten protective coating on a blade made of a tungsten alloy including vanadium, and a blade coated thereby
US5126213A (en) *	1987-05-18	1992-06-30	The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland	Coated near-alpha titanium articles
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Publication number	Publication date
JPS61127872A (ja)	1986-06-16
BR8505579A (pt)	1986-08-12

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2007-08-08	RIN1	Information on inventor provided before grant (corrected)	Inventor name: NAIK, SUBHASH K.

Publication	Publication Date	Title
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EP0242100B1 (de)	1991-01-30	Beschichteter Körper und Verfahren zur Herstellung desselben
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Dini	1989	Techniques for Coating Molybdenum
JPS6331546B2 (de)	1988-06-24