EP3985139A4 - Low-chromium corrosion-resistant high-strength polycrystalline high-temperature alloy and preparation method therefor - Google Patents

Low-chromium corrosion-resistant high-strength polycrystalline high-temperature alloy and preparation method therefor Download PDF

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Publication number
EP3985139A4
EP3985139A4 EP20821820.6A EP20821820A EP3985139A4 EP 3985139 A4 EP3985139 A4 EP 3985139A4 EP 20821820 A EP20821820 A EP 20821820A EP 3985139 A4 EP3985139 A4 EP 3985139A4
Authority
EP
European Patent Office
Prior art keywords
preparation
low
method therefor
temperature alloy
chromium corrosion
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.)
Pending
Application number
EP20821820.6A
Other languages
German (de)
French (fr)
Other versions
EP3985139A1 (en
Inventor
Jingbo Yan
Yuefeng Gu
Yong Yuan
Zheng Yang
Xinxing ZHANG
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.)
Xian Thermal Power Research Institute Co Ltd
Original Assignee
Xian Thermal Power Research Institute Co Ltd
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 Xian Thermal Power Research Institute Co Ltd filed Critical Xian Thermal Power Research Institute Co Ltd
Publication of EP3985139A1 publication Critical patent/EP3985139A1/en
Publication of EP3985139A4 publication Critical patent/EP3985139A4/en
Pending legal-status Critical Current

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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
    • C22C19/056—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%
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/023—Alloys based on nickel
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Heat Treatment Of Steel (AREA)
EP20821820.6A 2019-06-14 2020-06-12 Low-chromium corrosion-resistant high-strength polycrystalline high-temperature alloy and preparation method therefor Pending EP3985139A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910515309.7A CN110106398B (en) 2019-06-14 2019-06-14 Low-chromium corrosion-resistant high-strength polycrystalline high-temperature alloy and preparation method thereof
PCT/CN2020/095958 WO2020249113A1 (en) 2019-06-14 2020-06-12 Low-chromium corrosion-resistant high-strength polycrystalline high-temperature alloy and preparation method therefor

Publications (2)

Publication Number Publication Date
EP3985139A1 EP3985139A1 (en) 2022-04-20
EP3985139A4 true EP3985139A4 (en) 2023-07-26

Family

ID=67494994

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20821820.6A Pending EP3985139A4 (en) 2019-06-14 2020-06-12 Low-chromium corrosion-resistant high-strength polycrystalline high-temperature alloy and preparation method therefor

Country Status (3)

Country Link
EP (1) EP3985139A4 (en)
CN (1) CN110106398B (en)
WO (1) WO2020249113A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110106398B (en) * 2019-06-14 2020-08-18 中国华能集团有限公司 Low-chromium corrosion-resistant high-strength polycrystalline high-temperature alloy and preparation method thereof
CN111394619A (en) * 2020-05-08 2020-07-10 华能国际电力股份有限公司 High-strength corrosion-resistant nickel-based polycrystalline high-temperature alloy and preparation method thereof
CN111411266B (en) * 2020-05-08 2021-03-16 中国华能集团有限公司 Preparation process of nickel-based high-tungsten polycrystalline superalloy
CN111471897B (en) * 2020-05-08 2021-06-29 华能国际电力股份有限公司 Preparation and forming process of high-strength nickel-based high-temperature alloy
CN111394620B (en) * 2020-05-08 2021-01-22 华能国际电力股份有限公司 Machining and forming process of high-strength nickel-based high-temperature alloy bar
CN111394621A (en) * 2020-05-08 2020-07-10 中国华能集团有限公司 Deformation high-temperature alloy capable of forming composite corrosion-resistant layer and preparation process thereof
CN112458339A (en) * 2020-10-26 2021-03-09 江苏新核合金科技有限公司 Corrosion-resistant alloy for high-temperature fan and preparation method thereof
CN113667907B (en) * 2021-08-27 2022-05-24 华能国际电力股份有限公司 High-strength corrosion-resistant alloy for 650 ℃ grade thermal power generating unit and preparation method thereof
CN115846403B (en) * 2022-09-23 2023-08-15 贵州大学 Cobalt-based alloy with long rod-shaped phase structure of a large number of stacking faults and deformation nanometer twin crystals and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4769087A (en) * 1986-06-02 1988-09-06 United Technologies Corporation Nickel base superalloy articles and method for making
US5882586A (en) * 1994-10-31 1999-03-16 Mitsubishi Steel Mfg. Co., Ltd. Heat-resistant nickel-based alloy excellent in weldability
EP2354262A1 (en) * 2010-02-05 2011-08-10 Hitachi, Ltd. Ni based alloy for forging and components for steam turbine plant using same
US20150336217A1 (en) * 2013-01-11 2015-11-26 Siemens Aktiengesellschaft Boron-free solder with manganese and germanium, powder and repair method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4982324B2 (en) * 2007-10-19 2012-07-25 株式会社日立製作所 Ni-based forged alloy, forged parts for steam turbine plant, boiler tube for steam turbine plant, bolt for steam turbine plant, and steam turbine rotor
CN100588730C (en) * 2008-05-23 2010-02-10 北京科技大学 Rich chromium evolution phase reinforcing high chromated nickel base high-temperature alloy and preparation thereof
CN110106398B (en) * 2019-06-14 2020-08-18 中国华能集团有限公司 Low-chromium corrosion-resistant high-strength polycrystalline high-temperature alloy and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4769087A (en) * 1986-06-02 1988-09-06 United Technologies Corporation Nickel base superalloy articles and method for making
US5882586A (en) * 1994-10-31 1999-03-16 Mitsubishi Steel Mfg. Co., Ltd. Heat-resistant nickel-based alloy excellent in weldability
EP2354262A1 (en) * 2010-02-05 2011-08-10 Hitachi, Ltd. Ni based alloy for forging and components for steam turbine plant using same
US20150336217A1 (en) * 2013-01-11 2015-11-26 Siemens Aktiengesellschaft Boron-free solder with manganese and germanium, powder and repair method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020249113A1 *

Also Published As

Publication number Publication date
CN110106398B (en) 2020-08-18
CN110106398A (en) 2019-08-09
EP3985139A1 (en) 2022-04-20
WO2020249113A1 (en) 2020-12-17

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RIN1 Information on inventor provided before grant (corrected)

Inventor name: ZHANG, XINXING

Inventor name: YANG, ZHENG

Inventor name: YUAN, YONG

Inventor name: GU, YUEFENG

Inventor name: YAN, JINGBO

A4 Supplementary search report drawn up and despatched

Effective date: 20230627

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