EP0387976A3 - New superalloys and the methods for improving the properties of superalloys - Google Patents

New superalloys and the methods for improving the properties of superalloys Download PDF

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Publication number
EP0387976A3
EP0387976A3 EP19900250070 EP90250070A EP0387976A3 EP 0387976 A3 EP0387976 A3 EP 0387976A3 EP 19900250070 EP19900250070 EP 19900250070 EP 90250070 A EP90250070 A EP 90250070A EP 0387976 A3 EP0387976 A3 EP 0387976A3
Authority
EP
European Patent Office
Prior art keywords
superalloys
improving
properties
methods
new
Prior art date
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Withdrawn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
EP19900250070
Other languages
German (de)
French (fr)
Other versions
EP0387976A2 (en
Inventor
Yaoxiao Zhu
Shunnan Zhang
Zezhou Liu
Yingjie Dong
Jing Bi
Leying Xu
Changxu Shi
Zhuangqi Hu
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.)
Institute of Metal Research of CAS
Original Assignee
Institute of Metal Research of CAS
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 Institute of Metal Research of CAS filed Critical Institute of Metal Research of CAS
Publication of EP0387976A2 publication Critical patent/EP0387976A2/en
Publication of EP0387976A3 publication Critical patent/EP0387976A3/en
Withdrawn legal-status Critical Current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
    • C22C19/03—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
    • C22C19/057—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being less 10%
    • 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
    • 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
    • C22C19/055—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 20% but less than 30%
    • 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
    • C22C19/056—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 10% but less than 20%

Abstract

This invention has provided a new technique of improving the properties of superalloys by reducing the segregation of the alloying elements. The characteristic specificity is to reduce the phosphorus content of the alloys to below 0.001 (in wt%) and, in case of Ni-base superalloys, to below 0.0005(wt%). It is needed to eliminate Zr from the superalloys. Meanwhile, it is also needed to control the proper content of B and to reduce the content of Si to below 0.005. The invention has also provided a series of low segregation superalloys.
EP19900250070 1989-03-15 1990-03-14 New superalloys and the methods for improving the properties of superalloys Withdrawn EP0387976A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN89105034 1989-03-15
CN 89105034 CN1045607A (en) 1989-03-15 1989-03-15 A kind of method that improves the superalloy performance

Publications (2)

Publication Number Publication Date
EP0387976A2 EP0387976A2 (en) 1990-09-19
EP0387976A3 true EP0387976A3 (en) 1990-11-07

Family

ID=4855806

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900250070 Withdrawn EP0387976A3 (en) 1989-03-15 1990-03-14 New superalloys and the methods for improving the properties of superalloys

Country Status (2)

Country Link
EP (1) EP0387976A3 (en)
CN (1) CN1045607A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0561179A3 (en) * 1992-03-18 1993-11-10 Westinghouse Electric Corp Gas turbine blade alloy
WO1999067435A1 (en) * 1998-06-23 1999-12-29 Siemens Aktiengesellschaft Directionally solidified casting with improved transverse stress rupture strength
KR101004051B1 (en) 2005-11-09 2010-12-31 도꾸리쯔교세이호징 가가꾸 기쥬쯔 신꼬 기꼬 Iron-based alloy having shape-memory property and superelasticity and method for manufacture thereof
JP5232492B2 (en) 2008-02-13 2013-07-10 株式会社日本製鋼所 Ni-base superalloy with excellent segregation
JP2014005528A (en) * 2012-05-29 2014-01-16 Toshiba Corp Ni-BASED HEAT-RESISTANT ALLOY AND TURBINE COMPONENT
JP2014047371A (en) * 2012-08-30 2014-03-17 Hitachi Ltd Ni-BASED ALLOY AND GAS TURBINE BLADE AND GAS TURBINE USING THE SAME
JP2020509230A (en) 2017-02-08 2020-03-26 ボーグワーナー インコーポレーテッド New alloys for turbocharger parts
EP3604571A1 (en) * 2018-08-02 2020-02-05 Siemens Aktiengesellschaft Metal composition
CN112779385A (en) * 2020-12-24 2021-05-11 陕西宏远航空锻造有限责任公司 Heat treatment method of GH901 turbine disc forging
CN114250375A (en) * 2021-06-02 2022-03-29 中航上大高温合金材料股份有限公司 Method for producing GH738 alloy by using reclaimed materials

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3385698A (en) * 1965-04-09 1968-05-28 Carpenter Steel Co Nickel base alloy
US3667938A (en) * 1970-05-05 1972-06-06 Special Metals Corp Nickel base alloy
GB2075057A (en) * 1980-05-01 1981-11-11 Rolls Royce Nickel base superalloy
EP0045563A1 (en) * 1980-07-25 1982-02-10 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Nickel-base alloy for single crystal casting
GB2106138A (en) * 1981-09-19 1983-04-07 Rolls Royce Single crystal nickel alloy casting
EP0194391A1 (en) * 1985-03-13 1986-09-17 General Electric Company Yttrium and yttrium-silicon bearing nickel-base superalloys especially useful as compatible coatings for advanced superalloys
EP0214080A2 (en) * 1985-08-16 1987-03-11 United Technologies Corporation Reduction of twinning in directional recrystallization of nickel base superalloys
EP0237378A1 (en) * 1986-02-06 1987-09-16 Societe Nationale D'etude Et De Construction De Moteurs D'aviation, "S.N.E.C.M.A." Superalloy having a nickel base matrix, manufactured by powder-metallurgical processing, and gas turbine discs made from this alloy

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3385698A (en) * 1965-04-09 1968-05-28 Carpenter Steel Co Nickel base alloy
US3667938A (en) * 1970-05-05 1972-06-06 Special Metals Corp Nickel base alloy
GB2075057A (en) * 1980-05-01 1981-11-11 Rolls Royce Nickel base superalloy
EP0045563A1 (en) * 1980-07-25 1982-02-10 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Nickel-base alloy for single crystal casting
GB2106138A (en) * 1981-09-19 1983-04-07 Rolls Royce Single crystal nickel alloy casting
EP0194391A1 (en) * 1985-03-13 1986-09-17 General Electric Company Yttrium and yttrium-silicon bearing nickel-base superalloys especially useful as compatible coatings for advanced superalloys
EP0214080A2 (en) * 1985-08-16 1987-03-11 United Technologies Corporation Reduction of twinning in directional recrystallization of nickel base superalloys
EP0237378A1 (en) * 1986-02-06 1987-09-16 Societe Nationale D'etude Et De Construction De Moteurs D'aviation, "S.N.E.C.M.A." Superalloy having a nickel base matrix, manufactured by powder-metallurgical processing, and gas turbine discs made from this alloy

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
G.W. MEETHAM: "Development of Gas Turbine Materials", 1981, Applied Science Publishers Ltd., London, GB, pages 93, 296-298, page 93, second paragraph; page 297, Alloy C1023. *
Metal Progress, Vol. 129, No. 4, March 1986, pages 39-42, Metals Park, Ohio, US; Y. MINGGAO et al.: "Overview: investment casting alloys for aircraft parts". *

Also Published As

Publication number Publication date
EP0387976A2 (en) 1990-09-19
CN1045607A (en) 1990-09-26

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