EP1589122B1 - NiAl-Beta-Phase enthaltende Beschichtung - Google Patents
NiAl-Beta-Phase enthaltende Beschichtung Download PDFInfo
- 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
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Classifications
-
- 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)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19926669A DE19926669A1 (de) | 1999-06-08 | 1999-06-08 | NiAl-beta-Phase enthaltende Beschichtung |
DE19926669 | 1999-06-08 | ||
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 |
---|---|---|---|
EP00810410A Expired - Lifetime EP1061150B1 (de) | 1999-06-08 | 2000-05-12 | NiAl-B-Phase enthaltende Beschichtung |
EP05105696A Expired - Lifetime EP1589122B1 (de) | 1999-06-08 | 2000-05-12 | NiAl-Beta-Phase enthaltende Beschichtung |
Family Applications Before (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 (sv) |
EP (2) | EP1061150B1 (sv) |
CN (1) | CN1250771C (sv) |
DE (3) | DE19926669A1 (sv) |
Families Citing this family (14)
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 |
EP1774876B1 (en) * | 2004-07-14 | 2010-07-07 | Raymond Chin | A cooking canteen with non-sticky metallic coating and the preparing process thereof |
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 |
US20130337286A1 (en) * | 2010-11-02 | 2013-12-19 | Friedhelm Schmitz | Alloy, protective coating, and component |
EP2474413A1 (de) * | 2011-01-06 | 2012-07-11 | Siemens Aktiengesellschaft | Legierung, Schutzschicht und Bauteil |
EP2474414A1 (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 |
CN114829642A (zh) * | 2019-12-27 | 2022-07-29 | 株式会社久保田 | Ni基合金、耐热/耐腐蚀部件、热处理炉用部件 |
Family Cites Families (17)
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 (sv) * | 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 |
EP0207874B1 (en) * | 1985-05-09 | 1991-12-27 | United Technologies Corporation | Substrate tailored coatings for superalloys |
US5215831A (en) * | 1991-03-04 | 1993-06-01 | General Electric Company | Ductility ni-al intermetallic compounds microalloyed with iron |
US5116691A (en) * | 1991-03-04 | 1992-05-26 | General Electric Company | Ductility microalloyed NiAl intermetallic compounds |
US5116438A (en) * | 1991-03-04 | 1992-05-26 | General Electric Company | Ductility NiAl intermetallic compounds microalloyed with gallium |
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 |
-
1999
- 1999-06-08 DE DE19926669A patent/DE19926669A1/de not_active Withdrawn
-
2000
- 2000-05-12 DE DE50011352T patent/DE50011352D1/de not_active Expired - Lifetime
- 2000-05-12 DE DE50015301T patent/DE50015301D1/de not_active Expired - Lifetime
- 2000-05-12 EP EP00810410A patent/EP1061150B1/de not_active Expired - Lifetime
- 2000-05-12 EP EP05105696A patent/EP1589122B1/de not_active Expired - Lifetime
- 2000-05-18 US US09/573,869 patent/US6471791B1/en not_active Expired - Lifetime
- 2000-06-08 CN CN00118099.1A patent/CN1250771C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE50011352D1 (de) | 2006-03-02 |
EP1061150A3 (de) | 2000-12-27 |
EP1061150B1 (de) | 2005-10-19 |
EP1061150A2 (de) | 2000-12-20 |
US6471791B1 (en) | 2002-10-29 |
DE19926669A1 (de) | 2000-12-14 |
DE50015301D1 (de) | 2008-09-18 |
CN1280210A (zh) | 2001-01-17 |
EP1589122A1 (de) | 2005-10-26 |
CN1250771C (zh) | 2006-04-12 |
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