WO2008046708A1 - Nickel-base superalloys - Google Patents
Nickel-base superalloys Download PDFInfo
- Publication number
- WO2008046708A1 WO2008046708A1 PCT/EP2007/059936 EP2007059936W WO2008046708A1 WO 2008046708 A1 WO2008046708 A1 WO 2008046708A1 EP 2007059936 W EP2007059936 W EP 2007059936W WO 2008046708 A1 WO2008046708 A1 WO 2008046708A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- superalloy
- nickel
- base
- component according
- alloy
- Prior art date
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
- C22C19/056—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%
Definitions
- the invention relates to nickel-base superalloys and to com- ponents containing these alloys.
- Nickel-base superalloys are used in applications where a combination of high strength and a strong resistance to chemical attacks at high temperatures is needed. They are employed for the production of components of gas turbines such as blades and vanes. These parts are arranged in the hot section of a turbine and thus have to withstand high temperatures and an aggressive atmosphere.
- Nickel-base superalloys and components of the above mentioned kind are disclosed for example in US 6,818,077, US 6,419,763, US 6,177,046, EP 0 789 087 and EP 0 637 474.
- the nickel-base superalloy of the invention comprises in wt%: Co + Fe + Mn 0 - 20
- the superalloy consists of these elements. Especially one, several or all optionally listed elements are present in the alloy. "Present” means that the amount of this element is measurable higher than the known impurity level of this element in a nickel based super alloy. That means that the amount of this element is at least twice the impurity level of this element in a nickel powder based alloy.
- the alloy contains significant levels of Al, Cr and Ta to provide a combination of high strength, high oxidation resistance and high corrosion resistance.
- the amount of Ti should not exceed 0.45, the amount of Nb should not exceed 0.28, and the amount of V should not exceed 1 wt% respectively.
- the amount of matrix strengthening elements Mo, W, Re and Rh is between 2 and 8 wt%.
- Other elements like Hf, C, B, Zr, Ca, Mg, Cu, Y, La, Sc, Ce, actinides and lanthanides, and Si can be present in the superalloy in order to adapt its properties to special needs such as grain boundary strengthening, oxide scale fortifica- tion, and compatibility with specific coating systems.
- the content of Ti can be in the range (in wt%) of 0-0.40. Preferably it can be 0-0.35, more preferably 0-0.30 and most preferably 0-0.20.
- Nb in wt%) can be in the range of 0-0.25, preferably 0-0.20, more preferably 0- 0.15 and most preferably 0-0.10.
- the content of C (in wt%) can be in the range of 0-0.15, preferably 0- 0.08, more preferably 0.01-0.06 and most preferably 0.02-0.04
- the superalloy of the invention can also contain B in the range (in wt%) of 0-0.02, preferably 0-0.01, more preferably 0.001-0.008 and most preferably 0.003-0.007.
- a conventional cast component, directionally solidified component and a single crystal component, which comprise the super alloy are provided.
- the components of the invention can especially be part of a gas turbine, for example a turbine blade or vane, or as filler material, for example for laser welding of gas turbine components .
- the superalloy comprises the elements Ni, Co, Cr, Mo, W, Al, Ta, Hf, C and B and very especially consists only of these elements.
- the particle content was measured to be ⁇ 60 vol%.
- Table 2 shows a further preferred embodiment of the invention .
- the superalloy comprises the elements Ni, Co, Cr, Mo, W, Al, Ta, Hf, Zr, C and B and very especially consists only of these elements.
- composition in Table 2 had an average content of sulphur (S) estimated to be ⁇ 30ppm, at which it should be severely detrimental, and the Al content is a comparatively moderate 4.5%.
- composition in Table 2 has a lower particle content than the composition in Table 1, about 45 vol% rather than about 60vol%, and should therefore have a larger heat treatment window, and be at least as stable. With 16%Cr and a low level of the detrimental element Mo it will also have a high corrosion resistance.
- Ta is a very potent strengthening element.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200780038506XA CN101528959B (en) | 2006-10-17 | 2007-09-20 | Nickel-base superalloys |
JP2009532751A JP5124582B2 (en) | 2006-10-17 | 2007-09-20 | Nickel-base superalloy |
US12/311,873 US20100296962A1 (en) | 2006-10-17 | 2007-09-20 | Nickel-base superalloys |
EP07803558.1A EP2076616B1 (en) | 2006-10-17 | 2007-09-20 | Nickel-base superalloys |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06021724.7 | 2006-10-17 | ||
EP06021724A EP1914327A1 (en) | 2006-10-17 | 2006-10-17 | Nickel-base superalloy |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008046708A1 true WO2008046708A1 (en) | 2008-04-24 |
Family
ID=37714689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/059936 WO2008046708A1 (en) | 2006-10-17 | 2007-09-20 | Nickel-base superalloys |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100296962A1 (en) |
EP (2) | EP1914327A1 (en) |
JP (1) | JP5124582B2 (en) |
CN (1) | CN101528959B (en) |
WO (1) | WO2008046708A1 (en) |
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RU2674274C1 (en) * | 2018-03-22 | 2018-12-06 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") | Heat-resistant nickel-based cast alloy and an article made therefrom |
RU2691790C1 (en) * | 2019-02-20 | 2019-06-18 | Общество с ограниченной ответственностью "НТЦ "Современные технологии металлургии" (ООО "НТЦ "СТМ") | Cast nickel alloy |
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- 2007-09-20 EP EP07803558.1A patent/EP2076616B1/en active Active
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014220179A1 (en) * | 2014-10-06 | 2016-04-07 | Siemens Aktiengesellschaft | Nickel-based material with platinum, use as welding consumable and component |
RU2633679C1 (en) * | 2016-12-20 | 2017-10-16 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") | Cast heat-resistant nickel-based alloy and product made thereof |
RU2674274C1 (en) * | 2018-03-22 | 2018-12-06 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") | Heat-resistant nickel-based cast alloy and an article made therefrom |
RU2691790C1 (en) * | 2019-02-20 | 2019-06-18 | Общество с ограниченной ответственностью "НТЦ "Современные технологии металлургии" (ООО "НТЦ "СТМ") | Cast nickel alloy |
RU2775309C1 (en) * | 2021-12-16 | 2022-06-29 | Общество с ограниченной ответственностью Научно-технический центр "Технологии Специальной Металлургии" | Nickel heat resistant alloy for single crystal casting |
CN115418598A (en) * | 2022-09-20 | 2022-12-02 | 国网福建省电力有限公司 | Preparation method of lanthanum-doped high-manganese-silicon-content nickel-copper-based electric arc spraying coating |
RU2803779C1 (en) * | 2022-10-28 | 2023-09-19 | Российская Федерация, От Имени Которой Выступает Министерство Промышленности И Торговли Российской Федерации | Cast corrosion-resistant nickel-based polycrystalline superalloy |
Also Published As
Publication number | Publication date |
---|---|
JP2010507016A (en) | 2010-03-04 |
EP2076616B1 (en) | 2015-10-28 |
JP5124582B2 (en) | 2013-01-23 |
EP1914327A1 (en) | 2008-04-23 |
EP2076616A1 (en) | 2009-07-08 |
CN101528959A (en) | 2009-09-09 |
CN101528959B (en) | 2012-10-10 |
US20100296962A1 (en) | 2010-11-25 |
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