EP1589122B1 - NiAl-Beta-Phase enthaltende Beschichtung - Google Patents

NiAl-Beta-Phase enthaltende Beschichtung Download PDF

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Publication number
EP1589122B1
EP1589122B1 EP05105696A EP05105696A EP1589122B1 EP 1589122 B1 EP1589122 B1 EP 1589122B1 EP 05105696 A EP05105696 A EP 05105696A EP 05105696 A EP05105696 A EP 05105696A EP 1589122 B1 EP1589122 B1 EP 1589122B1
Authority
EP
European Patent Office
Prior art keywords
phase
coating
weight
nial
alloy
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.)
Expired - Lifetime
Application number
EP05105696A
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German (de)
English (en)
French (fr)
Other versions
EP1589122A1 (de
Inventor
Mohamed Dr. Nazmy
Hans Joachim Dr. Schmutzler
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.)
General Electric Technology GmbH
Original Assignee
Alstom Technology AG
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 Alstom Technology AG filed Critical Alstom Technology AG
Publication of EP1589122A1 publication Critical patent/EP1589122A1/de
Application granted granted Critical
Publication of EP1589122B1 publication Critical patent/EP1589122B1/de
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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process

Definitions

  • the invention relates to the field of materials technology. It relates to a coating which contains large volume fractions, in the range from 20 to 90% by volume, of NiAl- ⁇ -phase in a ⁇ -matrix.
  • the coating material In order to fully exploit the advantage of a high temperature to increase the efficiency of the turbine and the excellent mechanical properties of the base material (for example, single crystals or directionally solidified microstructures), it is necessary that the coating material not only protects the base material against oxidation and corrosion, but also the mechanical properties of the base material are not affected.
  • a low ductile-brittle transition temperature Ductile Brittle Transition Temperature - DBTT
  • the ⁇ -phase of the NiAl alloys has an ordered cubic B2 crystal structure (CsCl prototype) and consists of two simple interpenetrating cubic cells, where the Al atoms are the cube corners of one sublattice and the Ni atoms are the cube corners of the other Subgitter occupy.
  • the ⁇ phase is coarse and therefore brittle.
  • the object of the invention is to improve the ductility of NiAl coatings which have a high proportion of ⁇ phase in a ⁇ matrix.
  • the ⁇ -phase can have a different composition, for example NiAlCr, NiAlMo.
  • the coating comprising a Ni-base alloy with an Al content which contains a NiAl- ⁇ phase with a proportion of NiAl- ⁇ in the range from 20 to 90% by volume in a ⁇ matrix, has the following chemical composition (in wt .-%) of the coating: 13 Cr, 30 Co, 11.5 Al, 0.5 Ta, 1.2 Si, 0.3 Y, 0.1-8 Fe, and optionally 0.0005-0.9 B and / or 0.0005-1 Zr, and / or 0.1-8 Mo and / or 0.1-8 Ga, wherein the Total content of Fe, Mo and Ga maximum 10%, balance Ni and unavoidable impurities.
  • the advantages of the invention are that the ductility of the coating is substantially improved.
  • micro-alloying with Fe and optionally with Ga and Mo it is achieved that the ⁇ -phase is refined and thus the ductility is increased, without the oxidation resistance being reduced.
  • Exceeding the specified ranges will adversely affect ductility and resistance to oxidation and corrosion.
  • the coating max. 4 wt .-% Fe, Ga, Mo contains.
  • B 0.001-0.5 wt .-%)
  • Zr 0.001-0.5 wt .-%)
  • C 0.5 wt .-%
  • the comparative alloy VL 2 was microalloyed with Zr and Fe.
  • the following alloy data in% by weight was prepared, at which the plastic deformation was also determined in a three-point bending test at 200 ° C.: Table 2: Inventive alloy (modified comparative alloy) According to Tab. 1 Zr Fe L 21 VL 2 0.2 3
  • Fig. 1 In the case of the three-point bending specimen of the comparative alloy VL2 known from the prior art, a fracture occurred with a force of approximately 0.9 kN and a deflection of approximately 1.65 mm.
  • the ductility of the coatings containing NiAl- ⁇ phase can thus be increased.
  • the micro-alloying elements refine the coarse ⁇ -phase.
  • B, Zr and C consolidate the grain boundaries and the ⁇ / ⁇ phase boundaries.
  • the plastic deformation and thus the ductility of the coating alloy could thus be significantly increased by the addition of these additional elements.
  • By ductilizing the NiAl phase crack propagation is slowed down, ie. H. the fracture toughness is increased, which has a positive effect on the stress behavior of the coatings.
  • alloy C and / or B as a ⁇ / ⁇ phase boundary agent. It is the addition of 0.0005 to 0.9, preferably 0.001 to 0.5 wt .-% B, 0.0005 to 1.0, preferably 0.001 to 0.5 wt .-% Zr and 0.0005 to 0.8 wt .-% C provided.
  • phase boundary strengtheners B, C and Zr may be added singly or in combination.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
EP05105696A 1999-06-08 2000-05-12 NiAl-Beta-Phase enthaltende Beschichtung Expired - Lifetime EP1589122B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19926669 1999-06-08
DE19926669A DE19926669A1 (de) 1999-06-08 1999-06-08 NiAl-beta-Phase enthaltende Beschichtung
EP00810410A EP1061150B1 (de) 1999-06-08 2000-05-12 NiAl-B-Phase enthaltende Beschichtung

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP00810410A Division EP1061150B1 (de) 1999-06-08 2000-05-12 NiAl-B-Phase enthaltende Beschichtung

Publications (2)

Publication Number Publication Date
EP1589122A1 EP1589122A1 (de) 2005-10-26
EP1589122B1 true EP1589122B1 (de) 2008-08-06

Family

ID=7910933

Family Applications (2)

Application Number Title Priority Date Filing Date
EP05105696A Expired - Lifetime EP1589122B1 (de) 1999-06-08 2000-05-12 NiAl-Beta-Phase enthaltende Beschichtung
EP00810410A Expired - Lifetime EP1061150B1 (de) 1999-06-08 2000-05-12 NiAl-B-Phase enthaltende Beschichtung

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP00810410A Expired - Lifetime EP1061150B1 (de) 1999-06-08 2000-05-12 NiAl-B-Phase enthaltende Beschichtung

Country Status (4)

Country Link
US (1) US6471791B1 (zh)
EP (2) EP1589122B1 (zh)
CN (1) CN1250771C (zh)
DE (3) DE19926669A1 (zh)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1260612A1 (en) 2001-05-25 2002-11-27 ALSTOM (Switzerland) Ltd A bond or overlay MCrAIY-coating
US6746783B2 (en) * 2002-06-27 2004-06-08 General Electric Company High-temperature articles and method for making
US7070866B2 (en) * 2004-05-27 2006-07-04 General Electric Company Nickel aluminide coating with improved oxide stability
US7641985B2 (en) * 2004-06-21 2010-01-05 Siemens Energy, Inc. Boron free joint for superalloy component
CN100459910C (zh) * 2004-07-14 2009-02-11 钱远强 金属不粘涂层烹饪器皿及其制备方法
EP1790743A1 (de) * 2005-11-24 2007-05-30 Siemens Aktiengesellschaft Legierung, Schutzschicht und Bauteil
KR100911788B1 (ko) * 2007-02-13 2009-08-12 레이몬드 친 금속 비점착 코팅을 갖는 요리 식기 및 이의 제조 방법
US8920937B2 (en) * 2007-08-05 2014-12-30 United Technologies Corporation Zirconium modified protective coating
CN101638376B (zh) * 2008-07-29 2011-04-27 江苏恩华药业股份有限公司 阿戈美拉汀的制备方法及其中间体
EP2611949B1 (de) * 2010-11-02 2016-01-06 Siemens Aktiengesellschaft Nickel basis legierung, schutzschicht und bauteil
EP2474414A1 (de) * 2011-01-06 2012-07-11 Siemens Aktiengesellschaft Legierung, Schutzschicht und Bauteil
EP2474413A1 (de) * 2011-01-06 2012-07-11 Siemens Aktiengesellschaft Legierung, Schutzschicht und Bauteil
CN105624658B (zh) * 2014-10-31 2017-12-15 中国科学院金属研究所 一种活性元素改性铝化物涂层及其制备工艺
WO2021132350A1 (ja) * 2019-12-27 2021-07-01 株式会社クボタ Ｎｉ基合金、耐熱・耐食部品、熱処理炉用部品

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2542962A (en) * 1948-07-19 1951-02-20 His Majesty The King In The Ri Nickel aluminum base alloys
JPS5124452B2 (zh) * 1972-12-14 1976-07-24
US4045255A (en) * 1976-06-01 1977-08-30 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Directionally solidified eutectic γ+β nickel-base superalloys
US4116723A (en) * 1976-11-17 1978-09-26 United Technologies Corporation Heat treated superalloy single crystal article and process
US4328045A (en) * 1978-12-26 1982-05-04 United Technologies Corporation Heat treated single crystal articles and process
US4451431A (en) * 1982-10-25 1984-05-29 Avco Corporation Molybdenum-containing high temperature coatings for nickel- and cobalt-based superalloys
US4478791A (en) 1982-11-29 1984-10-23 General Electric Company Method for imparting strength and ductility to intermetallic phases
US4612165A (en) 1983-12-21 1986-09-16 The United States Of America As Represented By The United States Department Of Energy Ductile aluminide alloys for high temperature applications
US5043138A (en) 1983-12-27 1991-08-27 General Electric Company Yttrium and yttrium-silicon bearing nickel-base superalloys especially useful as compatible coatings for advanced superalloys
DE3683091D1 (de) * 1985-05-09 1992-02-06 United Technologies Corp Schutzschichten fuer superlegierungen, gut angepasst an die substrate.
US5116438A (en) * 1991-03-04 1992-05-26 General Electric Company Ductility NiAl intermetallic compounds microalloyed with gallium
US5116691A (en) * 1991-03-04 1992-05-26 General Electric Company Ductility microalloyed NiAl intermetallic compounds
US5215831A (en) * 1991-03-04 1993-06-01 General Electric Company Ductility ni-al intermetallic compounds microalloyed with iron
DE4423118C1 (de) * 1994-07-01 1995-06-01 Max Planck Inst Eisenforschung Nickel-Aluminium-Legierung
US5516380A (en) * 1994-10-14 1996-05-14 General Electric Company NiAl intermetallic alloy and article with improved high temperature strength
IT1294098B1 (it) * 1997-07-10 1999-03-22 Flametal S P A Lega per rivestimenti o riporti resistenti alla corrosione.
US6153313A (en) * 1998-10-06 2000-11-28 General Electric Company Nickel aluminide coating and coating systems formed therewith

Also Published As

Publication number Publication date
EP1589122A1 (de) 2005-10-26
EP1061150A2 (de) 2000-12-20
DE50015301D1 (de) 2008-09-18
CN1250771C (zh) 2006-04-12
EP1061150B1 (de) 2005-10-19
DE50011352D1 (de) 2006-03-02
US6471791B1 (en) 2002-10-29
EP1061150A3 (de) 2000-12-27
DE19926669A1 (de) 2000-12-14
CN1280210A (zh) 2001-01-17

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