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公开(公告)号：DE3719902A1
公开(公告)日：1997-05-22
申请号：DE3719902
申请日：1987-06-15
Applicant: UNITED TECHNOLOGIES CORP
Inventor： CETEL ALAN DAVID , DUHL DAVID NOEL
Abstract: Superalloy compsn. suited for the fabrication of columnar grain articles, comprises (%): 3-10 Cr; 12.1-16 Co; 1-1.9 Mo; 3-10 W; 0-5 Re; 4-7 Al; 0-1.5 Ti; 0-8 Ta; 0.5-3 Hf; 0-2 Cb; 0-1 V; 0.02-0.12 Zr; 0.03-0.2 C; 0.005-0.25 B; O-10 ereactive element; balance Ni. Pref. the compsn has incipient melting temp. sufficiently high to permit heat treatment where 70 + 5Cr + 3Co - (25Ti + 7Ta + 15 Al) is at least 0. Pref. the compsn has good hot corrosion resistance where; 2Cr - 2 (Mo + W) is at least 0. Pref. the compsn has good oxidn. resistance where 3A1 + Ta - (5Ti + W) is more than 12%. Pref. the compsn. has good creep strength, where 455Al-37Al2 + 37W + 22Re + 10 (Mo + Ta) is at least 1635. A superalloy compsn. suitable for fabrication of columnar grain articles, comprises (%) 5-7 Cr; 12.5-15 Co; 1.3-1.9 Mo; 1.5-3 Re; 4-8 W; 3-5 Ta; 1-2 Hf; 5-6.5 Al; 0-1 (Ti + Cb) ; 0.02-0.12 Zr; 0.03-0.12 C; 0.005-0.025 B; O-loreactive elements; balance Ni. For good castability i.e. defect free columnar grain castings, the compsn. as specified above has; W + Re is less than 10%, and for long-term micro-structural stability, freedom from deleterious phases after extended high temp. exposure, the compsn has; 1.5Cr + 0.3Co + 0.5(W + Ta + Hf) + Mo + Re + 3.3Al + 2.5Ti is less than 45.
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公开(公告)号：GB2278850A
公开(公告)日：1994-12-14
申请号：GB8713690
申请日：1987-06-11
Applicant: UNITED TECHNOLOGIES CORP
Inventor： CETEL ALAN DAVID , DUHL DAVID NOEL
Abstract: An article exhibiting superior mechical properties and resistance to oxidation corrosion at elevated temperatures as described. The article has particular utility in gas turbine engines and is comprised of a nickel base superalloy consisting essentially of 3-10% Cr, 12.1-16% Co, 1.0-1.8% Mo, 3-10% w, 0-5% Re, 4-7% Al, 0-1.5% Ti, 0-8% Ta, 0.5-3% Hf, 0-2% Cb, 0-1% V, 0.02-0.12% Zr, 0.02-0.2% C, 0.005-0.25% B, 0-10% of the oxygen active element yttrium, balance essentially nickel. This composition is melted and directionally solidified in columnar grain form to provide useful articles.
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公开(公告)号：DE2642202A1
公开(公告)日：1977-03-31
申请号：DE2642202
申请日：1976-09-20
Applicant: UNITED TECHNOLOGIES CORP
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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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Patent Agency Ranking
公开(公告)号：DE3719902C2
公开(公告)日：2001-11-08
申请号：DE3719902
申请日：1987-06-15
Applicant: UNITED TECHNOLOGIES CORP
Inventor： CETEL ALAN DAVID , DUHL DAVID NOEL
Abstract: An article exhibiting superior mechical properties and resistance to oxidation corrosion at elevated temperatures as described. The article has particular utility in gas turbine engines and is comprised of a nickel base superalloy consisting essentially of 3-10% Cr, 12.1-16% Co, 1.0-1.9% Mo, 3-10% W, 0-5% Re, 4-7% Al, 0-1.5% Ti, 0-8% Ta, 0.5-3% Hf, 0-2% Cb, 0-1% V, 0.02-0.12% Zr, 0.03-0.2% C, 0.005-0.25% B, 0-0.15% of an oxygen active element such as yttrium, balance essentially nickel. This composition is melted and directionally solidified in columnar grain form to provide useful articles.
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公开(公告)号：IT1152571B
公开(公告)日：1987-01-07
申请号：IT2325582
申请日：1982-09-14
Applicant: UNITED TECHNOLOGIES CORP
Inventor： DUHL DAVID NOEL , CETEL ALAN DAVID
Abstract: A specific composition range and process sequence are described for the production of single crystal superalloy articles which have an exceptional combination of high temperature mechanical properties and resistance to oxidation and hot corrosion. The nominal composition is 6% Ta, 9% Cr, 5% Co, 1% Ti, 1% Mo, 7% W, 5.5% Al, 0.15% Hf balance essentially nickel. Material of this composition is cast and solidifed in single crystal form and heat treated to produce an optimum microstructure.
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公开(公告)号：DE3234083A1
公开(公告)日：1983-04-28
申请号：DE3234083
申请日：1982-09-14
Applicant: UNITED TECHNOLOGIES CORP
Inventor： DUHL DAVID NOEL , CETEL ALAN DAVID
Abstract: A specific composition range and process sequence are described for the production of single crystal superalloy articles which have an exceptional combination of high temperature mechanical properties and resistance to oxidation and hot corrosion. The nominal composition is 6% Ta, 9% Cr, 5% Co, 1% Ti, 1% Mo, 7% W, 5.5% Al, 0.15% Hf balance essentially nickel. Material of this composition is cast and solidifed in single crystal form and heat treated to produce an optimum microstructure.
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公开(公告)号：GB2105747A
公开(公告)日：1983-03-30
申请号：GB8225433
申请日：1982-09-07
Applicant: UNITED TECHNOLOGIES CORP
Inventor： DUHL DAVID NOEL , CETEL ALAN DAVID
Abstract: A specific composition range and process sequence are described for the production of single crystal superalloy articles which have an exceptional combination of high temperature mechanical properties and resistance to oxidation and hot corrosion. The nominal composition is 6% Ta, 9% Cr, 5% Co, 1% Ti, 1% Mo, 7% W, 5.5% Al, 0.15% Hf balance essentially nickel. Material of this composition is cast and solidifed in single crystal form and heat treated to produce an optimum microstructure.
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公开(公告)号：FR2324753A1
公开(公告)日：1977-04-15
申请号：FR7627843
申请日：1976-09-16
Applicant: UNITED TECHNOLOGIES CORP
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