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1.发明专利
公开(公告)号：CH637165A5
公开(公告)日：1983-07-15
申请号：CH1334177
申请日：1977-11-02
Applicant: UNITED TECHNOLOGIES CORP
Inventor： GELL MAURICE LOUIS , DUHL DAVID NOEL
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公开(公告)号：FR2519033A1
公开(公告)日：1983-07-01
申请号：FR8221748
申请日：1982-12-24
Applicant: UNITED TECHNOLOGIES CORP
Inventor： DUHL DAVID NOEL , GELL MAURICE LOUIS
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公开(公告)号：IT8225044D0
公开(公告)日：1982-12-30
申请号：IT2504482
申请日：1982-12-30
Applicant: UNITED TECHNOLOGIES CORP
Inventor： DUHL DAVID NOEL , GELL MAURICE LOUIS
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公开(公告)号：FR2334759A1
公开(公告)日：1977-07-08
申请号：FR7636438
申请日：1976-12-03
Applicant: UNITED TECHNOLOGIES CORP
Inventor： MAGYAR STEPHEN THOMAS , FELTEN EDWARD JOSEPH , HIRAKIS EMANUEL COLLINS , FELTEN KATHARINE W , GELL MAURICE LOUIS
Abstract: Cobalt base alloys for use at elevated temperatures are disclosed that possess excellent resistance to oxidation/corrosion at elevated temperatures in combination with mechanical properties which exceed those of similar alloys currently in use. The resistance to oxidation/corrosion is afforded by a particular combination of aluminum and chromium which act to form a protective alumina layer and a synergistic combination of hafnium and yttrium which act to promote adherence of the alumina. Refractory metal additions are utilized to improve the mechanical properties. The alloys of the invention are suited for use in gas turbine engines as well as industrial applications such as furnaces and chemical process apparatus.
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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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Patent Agency Ranking
公开(公告)号：CA1339811C
公开(公告)日：1998-04-14
申请号：CA417395
申请日：1982-12-09
Applicant: UNITED TECHNOLOGIES CORP
Inventor： DUHL DAVID NOEL , GELL MAURICE LOUIS
Abstract: Disclosed is the improvement in the mechanical properties of a particular nickel base superalloy which is obtainable through the preparation of the material with a modified composition, in single crystal form and with heat treatment. Such single crystals, of a particular composition, display elevated temperature rupture lives which are at least 10X of that displayed by conventionally cast alloys of similar compositions.
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公开(公告)号：IT1155093B
公开(公告)日：1987-01-21
申请号：IT2504482
申请日：1982-12-30
Applicant: UNITED TECHNOLOGIES CORP
Inventor： DUHL DAVID NOEL , GELL MAURICE LOUIS
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公开(公告)号：GB2112812A
公开(公告)日：1983-07-27
申请号：GB8236691
申请日：1982-12-23
Applicant: UNITED TECHNOLOGIES CORP
Inventor： DUHL DAVID NOEL , GELL MAURICE LOUIS
Abstract: The article is formed of an alloy containing in wt % Such single crystals, display elevated temperature rupture lives which are least 10x of that displayed by conventionally cast alloys of similar compositions.
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公开(公告)号：DE2655617A1
公开(公告)日：1977-06-23
申请号：DE2655617
申请日：1976-12-08
Applicant: UNITED TECHNOLOGIES CORP
Inventor： MAGYAR STEPHEN THOMAS , HIRAKIS EMANUEL COLLINS , GELL MAURICE LOUIS , FELTON EDWARD JOSEPH
Abstract: Cobalt base alloys for use at elevated temperatures are disclosed that possess excellent resistance to oxidation/corrosion at elevated temperatures in combination with mechanical properties which exceed those of similar alloys currently in use. The resistance to oxidation/corrosion is afforded by a particular combination of aluminum and chromium which act to form a protective alumina layer and a synergistic combination of hafnium and yttrium which act to promote adherence of the alumina. Refractory metal additions are utilized to improve the mechanical properties. The alloys of the invention are suited for use in gas turbine engines as well as industrial applications such as furnaces and chemical process apparatus.
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公开(公告)号：CH655131A5
公开(公告)日：1986-03-27
申请号：CH747182
申请日：1982-12-21
Applicant: UNITED TECHNOLOGIES CORP
Inventor： DUHL DAVID NOEL , GELL MAURICE LOUIS , CHEN OTIS YUCHIA
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