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公开(公告)号：AU8068887A
公开(公告)日：1988-05-05
申请号：AU8068887
申请日：1987-11-02
Applicant: UNITED TECHNOLOGIES CORP
Inventor： MILANIAK MICHAEL STEPHEN , OKAWA CLARK TATSUMI , OLSON WALTER E
Abstract: A powder mixture for applying gas phase aluminide coatings to nickel or cobalt base superalloys is described. A preferred mixture consists essentially of Co2Al5, NH4F.HF, and chromium metal. The mixture is substantially free of aluminum oxide.
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公开(公告)号：NO148523C
公开(公告)日：1983-10-26
申请号：NO781787
申请日：1978-05-23
Applicant: UNITED TECHNOLOGIES CORP
Inventor： DUHL DAVID NOEL , OLSON WALTER E
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公开(公告)号：CA1117320A
公开(公告)日：1982-02-02
申请号：CA301018
申请日：1978-04-12
Applicant: UNITED TECHNOLOGIES CORP
Inventor： DUHL DAVID N , OLSON WALTER E
Abstract: Nickel base superalloy single crystal articles formed from a particular alloy and heat treated are described as is the process employed. The resultant articles are substantially free from the grain boundary strengtheners such as carbon, boron, and zirconium and contain only a limited amount of cobalt. As a result of the alloy composition, the alloys have a high incipient melting temperature. The heat treatment process homogenizes the microstructure, and refines the gamma prime morphology. The alloy has particular utility in the fabrication of airfoils (blades and vanes) for use in gas turbine engines. In particular, the strength of articles made according to this invention makes them especially suited for use as blades in gas turbine engines.
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公开(公告)号：MY125231A
公开(公告)日：2006-07-31
申请号：MYPI20005894
申请日：2000-12-15
Applicant: UNITED TECHNOLOGIES CORP
Inventor： ALLEN WILLIAM PATRICK , OLSON WALTER E , SHAH DILIP M , CETEL ALAN DAVID
Abstract: A TURBINE BLADE HAS AN AIR FOIL (12), A ROOT (14) AND A PLATFORM (16) LOCATED BETWEE THE AIRFOIL (12) AND ROOT (14). THE PLATFORM (16) HAS AN UNDERSIDE ADJACENT THE ROOT, AND A CORROSION RESISTANT OVERLAY COATING (21;24) SUCH AS AN MCRAI 1Y OR A NOBLE METAL CONTAINING ALUMINADE OR CORROSION INHIBITING CERAMIC IS LOCATED ON PORTIONS OR THE BLADE NOT PREVIOUSLY COVERED WITH SUCH COATINGS, E.G., THE UNDERSIDE OF THE PLATFORM AND THE NECK (19). THE APPLIED COATING PREVENTS CORROSION AND STRESS CORROSION CRACKING OF BLADE IN THESE REGIONS. WHERE THE AIRFOIL IS ALSO COATED, THE AIRFOIL COATING MAY HAVE A COMPOSITION DIFFERENT FROM THAT OF THE COATING ON THE UNDERPLATFORM SURFACES.[FIG. 1A].
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公开(公告)号：SG53074A1
公开(公告)日：1998-09-28
申请号：SG1997003502
申请日：1997-09-23
Applicant: UNITED TECHNOLOGIES CORP
Inventor： OLSON WALTER E , PIETRUSKA NORMAN , DRAGHI PETER JON
Abstract: The invention relates to a low activity localised aluminide coating for a metallic article made by positioning a coating material, preferably in the form of a tape, on a portion of the article. The coating material comprises a binder, a halide activator, an aluminum source, and an inert ceramic material. The coating material and the article are heated in an inert atmosphere between about 1800 DEG F (982 DEG C) and about 2050 DEG F (1121 DEG C) for between about four and about seven hours thereby producing a low activity localized aluminide coating having an outward diffusion aluminide coating microstructure characterized by two distinct zones, an inner diffusion zone and an outer zone including between about 20-28 percent, by weight, aluminum.
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Patent Agency Ranking
公开(公告)号：DE3785644T2
公开(公告)日：1993-08-05
申请号：DE3785644
申请日：1987-11-03
Applicant: UNITED TECHNOLOGIES CORP
Inventor： MILANIAK MICHAEL STEPHEN , OLSON WALTER E , GUPTA DINESH KUMAR
Abstract: Methods are described for forming an yttrium enriched aluminide coating on the surface of a nickel or cobalt base superalloy article. In one preferred embodiment, a pack mixture for forming the coating consists essentially of, by weight percent, 5-35 of an Al-Y-Si alloy, 1-20 CoI2, balance Y2O3.
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公开(公告)号：DE3784012T2
公开(公告)日：1993-06-17
申请号：DE3784012
申请日：1987-11-03
Applicant: UNITED TECHNOLOGIES CORP
Inventor： MILANIAK MICHAEL STEPHEN , OLSON WALTER E , OKAWA CLARK TATSUMI
Abstract: A powder mixture for applying gas phase aluminide coatings to nickel or cobalt base superalloys is described. A preferred mixture consists essentially of Co2Al5, NH4F.HF, and chromium metal. The mixture is substantially free of aluminum oxide.
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公开(公告)号：DE3784012D1
公开(公告)日：1993-03-18
申请号：DE3784012
申请日：1987-11-03
Applicant: UNITED TECHNOLOGIES CORP
Inventor： MILANIAK MICHAEL STEPHEN , OLSON WALTER E , OKAWA CLARK TATSUMI
Abstract: A powder mixture for applying gas phase aluminide coatings to nickel or cobalt base superalloys is described. A preferred mixture consists essentially of Co2Al5, NH4F.HF, and chromium metal. The mixture is substantially free of aluminum oxide.
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公开(公告)号：CA1304195C
公开(公告)日：1992-06-30
申请号：CA550803
申请日：1987-11-02
Applicant: UNITED TECHNOLOGIES CORP
Inventor： MILANIAK MICHAEL S , OLSON WALTER E , GUPTA DINESH K
Abstract: Yttrium Enriched Aluminide Coatings Methods are described for forming an yttrium enriched aluminide coating on the surface of a nickel or cobalt base superalloy article. In one preferred embodiment, a pack mixture for forming the coating consists essentially of, by weight percent, 5-35 of an Al-Y-Si alloy, 1-20 CoI2, balance Y2O3.
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公开(公告)号：NO148523B
公开(公告)日：1983-07-18
申请号：NO781787
申请日：1978-05-23
Applicant: UNITED TECHNOLOGIES CORP
Inventor： DUHL DAVID NOEL , OLSON WALTER E
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