EP3658695B1 - Hochtemperatur-nickelbasislegierung - Google Patents

Hochtemperatur-nickelbasislegierung Download PDF

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Publication number
EP3658695B1
EP3658695B1 EP18752680.1A EP18752680A EP3658695B1 EP 3658695 B1 EP3658695 B1 EP 3658695B1 EP 18752680 A EP18752680 A EP 18752680A EP 3658695 B1 EP3658695 B1 EP 3658695B1
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EP
European Patent Office
Prior art keywords
nickel
base
alloy according
max
weight
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.)
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Application number
EP18752680.1A
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German (de)
English (en)
French (fr)
Other versions
EP3658695A1 (de
Inventor
Jürgen Kiese
Nicole De Boer
Heike Hattendorf
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.)
VDM Metals International GmbH
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VDM Metals International GmbH
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Publication of EP3658695A1 publication Critical patent/EP3658695A1/de
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    • 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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades

Definitions

  • the invention relates to a high temperature nickel-based alloy.
  • the material C263 (Nicrofer 5120 CoTi) is used, among other things, as a material for heat shields in turbochargers or car engines.
  • the heat shield separates the compressor from the turbine side within the turbocharger and the hot exhaust gas flows directly against it. Since the exhaust gas temperatures, especially in gasoline engines, are getting higher and higher, the components can fail, for example in the form of deformations, which leads to a considerable drop in the performance of the turbocharger.
  • the exhaust gas temperatures can be up to 1,050 ° C, with the temperatures arriving at the heat shield being around 900 to 950 ° C. At these temperatures, the C263 material is no longer creep resistant.
  • the general composition of the material C263 is given as follows (in% by weight): Cr 19.0 - 21.0%, Fe max. 0.7%, C 0.04 - 0.08%, Mn max. 0 , 6%, Si max.0.4%, Cu max.0.2%, Mo 5.6 - 6.1%, Co 19.0 - 21.0%, Al 0.3 - 0.6%, Ti 1.9 - 2.4%, P max.0.015%, S max.0.007%, B max.0.005%.
  • an austenitic nickel-chromium-cobalt-molybdenum-tungsten alloy can be found, containing (in% by mass) C 0.05-0.10%, Cr 21-23%, Co 10-15%, Mo 10-11 %, Al 1.0 - 1.5%, W 5.1 - 8.0%, Y 0.01 - 0.1%, B 0.001 - 0.01%, Ti max. 0.5%, Si max 0.5%, Fe max. 2%, Mn max. 0.5%, Ni remainder including unavoidable impurities caused by melting.
  • the material can be used for compressors and turbochargers of internal combustion engines, components of steam turbines, components of gas and steam turbine power plants.
  • the EP 1 466 027 B1 discloses a high-temperature-resistant and corrosion-resistant Ni-Co-Cr alloy, containing (in% by weight): Cr 23.5-25.5%, Co 15.0-22.0%, Al 0.2-2.0 %, Ti 0.5-2.5%, Nb 0.5-2.5%, up to 2.0% Mo, up to 1.0% Mn, Si 0.3-1.0%, up to 3 , 0% Fe, up to 0.3% Ta, up to 0.3% W, C 0.005 - 0.08%, Zr 0.01 - 0.3%, B 0.001 to 0.01%, up to 0.05% rare earths as misch metal, Mg + Ca 0.005 - 0.025%, optionally up to 0.05% Y, balance Ni and impurities.
  • the material can be used in the temperature range between 530 and 820 ° C as an exhaust valve for diesel engines and pipes for steam boilers.
  • the invention is based on the object of changing a material based on C263 with regard to its composition in such a way that the stability of the strength-increasing phase is shifted towards higher temperatures. At the same time, it must be ensured that the stability limits of other phases (e.g. Eta phase) are shifted to lower temperatures. Furthermore, an attempt should be made to activate additional hardening mechanisms.
  • the nickel-based alloy according to the invention should preferably be usable for components which are exposed to component temperatures above 700 ° C, preferably> 900 ° C, in particular> 950 ° C.
  • the goal, namely to shift the gamma prime phase to higher temperatures, is achieved, while at the same time the stability of other phases, lower than gamma prime, and towards lower temperatures can also be realized.
  • the components mentioned are all used in hot and highly stressed atmospheres, with permanent component temperatures, in some cases above 900 ° C, being given.
  • oxygen-containing atmospheres for example from car or truck engines, engines or gas turbines.
  • the alloy according to the invention has a high heat resistance and creep rupture strength, while at the same time also having a high temperature corrosion resistance (e.g. in the case of exhaust gases).
  • the alloy according to the invention is also fatigue-resistant at high temperatures, in particular above 900.degree.
  • the sum of Ti + Al (in% by weight) is at least 1%. In certain applications it can be useful if the sum of Ti + Al (in% by weight) is at least 1.5%, in particular at least 2%.
  • the Ti / Al ratio should be a maximum of 3.5, in particular a maximum of 2.0.
  • the high-temperature nickel-based alloy according to the invention can preferably be used for large-scale production (> 1 t).
  • the solution annealing was carried out at 1,150 ° C. for 30 minutes with subsequent water quenching.
  • Precipitation hardening was carried out at temperatures of 800, 850, 900 or 950 ° C. for 4/8/16 hours with subsequent water quenching.
  • the variants 250575 to 250577 showed a very high level of hardness compared to the prior art, respectively the variants 250573 and 250574. This means that the strength-increasing phase (here gamma prime) is still stable.
  • the material is produced in a medium-frequency induction furnace and then cast as a continuous cast in slab form.
  • the slabs are then remelted into further slabs (or bars) in the electroslag remelting furnace.
  • the respective slab is then hot-rolled to produce strip material with a thickness of approx. 6 mm. This is followed by a cold rolling process of the strip material to a final thickness of approx. 0.4 mm.
  • the product shape according to the VAR can be a slab or a bar.
  • the deformation can be done by rolling or forging.
  • VIM - ESU VIM - ESU
  • Forming by forging or rolling is also conceivable here.
  • illustration 1 shows the creep strain of various materials as a function of time at a typical application temperature of 900 ° C and a load of 60 Mpa.
  • the materials C-263 standard (Nicrofer 5120 CoTi), C-264 variant 76 (batch 250576) and C-264 variant 77 (batch 250577) are shown.
  • the other two variants both show service lives of approx. 400 hours and approx. 550 hours, respectively.
  • Variants 76 and 77 show improved service lives, which in the operating state lead to higher creep resistance and thus to significantly less component deformation.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Exhaust Silencers (AREA)
  • Supercharger (AREA)
EP18752680.1A 2017-07-28 2018-07-24 Hochtemperatur-nickelbasislegierung Active EP3658695B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017007106.3A DE102017007106B4 (de) 2017-07-28 2017-07-28 Hochtemperatur-Nickelbasislegierung
PCT/DE2018/100663 WO2019020145A1 (de) 2017-07-28 2018-07-24 Hochtemperatur-nickelbasislegierung

Publications (2)

Publication Number Publication Date
EP3658695A1 EP3658695A1 (de) 2020-06-03
EP3658695B1 true EP3658695B1 (de) 2021-09-01

Family

ID=63165131

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18752680.1A Active EP3658695B1 (de) 2017-07-28 2018-07-24 Hochtemperatur-nickelbasislegierung

Country Status (9)

Country Link
US (1) US11193186B2 (ko)
EP (1) EP3658695B1 (ko)
JP (1) JP6949144B2 (ko)
KR (2) KR20200019968A (ko)
CN (1) CN110914463A (ko)
BR (1) BR112019022793B1 (ko)
DE (1) DE102017007106B4 (ko)
ES (1) ES2897323T3 (ko)
WO (1) WO2019020145A1 (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020116868A1 (de) * 2019-07-05 2021-01-07 Vdm Metals International Gmbh Pulver aus einer Nickel-Kobaltlegierung, sowie Verfahren zur Herstellung des Pulvers
DE102020207910A1 (de) 2020-06-25 2021-12-30 Siemens Aktiengesellschaft Nickelbasislegierung, Pulver, Verfahren und Bauteil
CN113234964B (zh) * 2021-05-19 2021-12-03 山西太钢不锈钢股份有限公司 一种镍基耐蚀合金及其加工方法
EP4241906A1 (de) 2022-03-11 2023-09-13 Siemens Aktiengesellschaft Nickelbasislegierung, bauteil, pulver und verfahren

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA921733A (en) 1967-10-16 1973-02-27 Special Metals Corporation Nickel base alloy
US3785876A (en) 1972-09-25 1974-01-15 Special Metals Corp Treating nickel base alloys
US5693159A (en) * 1991-04-15 1997-12-02 United Technologies Corporation Superalloy forging process
US5964091A (en) * 1995-07-11 1999-10-12 Hitachi, Ltd. Gas turbine combustor and gas turbine
US6258317B1 (en) 1998-06-19 2001-07-10 Inco Alloys International, Inc. Advanced ultra-supercritical boiler tubing alloy
JP5052724B2 (ja) 2000-01-24 2012-10-17 ハンチントン、アロイス、コーポレーション Ｎｉ‐Ｃｏ‐Ｃｒ高温強度および耐蝕性合金
AT408665B (de) 2000-09-14 2002-02-25 Boehler Edelstahl Gmbh & Co Kg Nickelbasislegierung für die hochtemperaturtechnik
DE10052023C1 (de) 2000-10-20 2002-05-16 Krupp Vdm Gmbh Austenitische Nickel-Chrom-Cobalt-Molybdän-Wolfram-Legierung und deren Verwendung
DE102011013091A1 (de) 2010-03-16 2011-12-22 Thyssenkrupp Vdm Gmbh Nickel-Chrom-Kobalt-Molybdän-Legierung
EP2698215A1 (en) 2012-08-17 2014-02-19 Alstom Technology Ltd Method for manufacturing high temperature steam pipes
DE102013002483B4 (de) * 2013-02-14 2019-02-21 Vdm Metals International Gmbh Nickel-Kobalt-Legierung
JP6201724B2 (ja) * 2013-12-19 2017-09-27 新日鐵住金株式会社 Ｎｉ基耐熱合金部材およびＮｉ基耐熱合金素材
DE102014001329B4 (de) 2014-02-04 2016-04-28 VDM Metals GmbH Verwendung einer aushärtenden Nickel-Chrom-Titan-Aluminium-Legierung mit guter Verschleißbeständigkeit, Kriechfestigkeit, Korrosionsbeständigkeit und Verarbeitbarkeit
JP6323188B2 (ja) * 2014-06-11 2018-05-16 新日鐵住金株式会社 Ｎｉ基耐熱合金溶接継手の製造方法
JP6519007B2 (ja) * 2015-04-03 2019-05-29 日本製鉄株式会社 Ｎｉ基耐熱合金溶接継手の製造方法

Also Published As

Publication number Publication date
KR20220070349A (ko) 2022-05-30
BR112019022793B1 (pt) 2022-12-20
DE102017007106A1 (de) 2019-01-31
DE102017007106B4 (de) 2020-03-26
KR102534136B1 (ko) 2023-05-18
BR112019022793A2 (pt) 2020-05-26
US11193186B2 (en) 2021-12-07
CN110914463A (zh) 2020-03-24
ES2897323T3 (es) 2022-02-28
US20200172997A1 (en) 2020-06-04
JP6949144B2 (ja) 2021-10-13
KR20200019968A (ko) 2020-02-25
JP2020521879A (ja) 2020-07-27
EP3658695A1 (de) 2020-06-03
WO2019020145A1 (de) 2019-01-31

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