CN1066298A - Nickel-base cast superalloy - Google Patents
Nickel-base cast superalloy Download PDFInfo
- Publication number
- CN1066298A CN1066298A CN 92104346 CN92104346A CN1066298A CN 1066298 A CN1066298 A CN 1066298A CN 92104346 CN92104346 CN 92104346 CN 92104346 A CN92104346 A CN 92104346A CN 1066298 A CN1066298 A CN 1066298A
- Authority
- CN
- China
- Prior art keywords
- alloy
- nickel
- turning vane
- cast superalloy
- present
- 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.)
- Granted
Links
- 229910000601 superalloy Inorganic materials 0.000 title claims abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 35
- 239000000956 alloy Substances 0.000 claims description 35
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 9
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910052717 sulfur Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 239000003963 antioxidant agent Substances 0.000 abstract description 10
- 230000003078 antioxidant effect Effects 0.000 abstract description 10
- 230000035939 shock Effects 0.000 abstract description 6
- 239000004615 ingredient Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 9
- 238000005728 strengthening Methods 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910052684 Cerium Inorganic materials 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910018505 Ni—Mg Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The present invention is a kind of nickel-base cast superalloy, and its chemical ingredients (weight %) is: Cr13.0～14.8%, Co7.5～8.8%, Mo6.3～7.4%, B0.005～0.016%, Al3.9～4.4%, C0.10～0.18%, Ti3.3～3.8%, Ce0.005～0.03%, surplus is Ni.The present invention has thermal shock resistance and antioxidant anticorrosive performance preferably, and good ductility and toughness at room temperature and enduring quality.Be applicable to the turning vane of aircraft engine and guider etc.
Description
The invention belongs to the nickel-base alloy field.Be mainly used in the turning vane of aircraft engine etc.
Turning vane or block cast guide material are born the thermal shocking and the oxidation corrosion effect of high-temperature fuel gas in gas turbine, and improving constantly along with aero-engine performance, the gas turbine turning vane requires the use temperature of its material more and more high, and require more and more long work-ing life.Therefore, employed superalloy not only requires the hot strength height, and requires heat shock resistance and antioxidant anticorrosive performance good.Cobalt-based and nickel base superalloy that the present turning vane that uses is used all can not satisfy this requirement.
The described C1023 nickel base superalloy of English Patent GB955016 is a kind of turning vane material, but owing to solution strengthening constituent contents such as Cr, Co, Mo in the composition design are too high.B content is low excessively, makes the plasticity and toughness of room temperature relatively poor, and enduring quality and thermal shock resistance are not high, and alloy is at high temperature separated out excessive T.C.P phase behind the life-time service, should not be as the long lifetime turning vane of high temperature use.
Three patents of US4140555, US3850624 and CN86 108748A are the nickel-base cast superalloy that adds magnesium or add calcium, owing on composition, do not consider the work characteristics of turning vane, promptly there is not enough to consider the performance of antioxidant anticorrosive and heat shock resistance aspect, cause the requirement that to satisfy this respect, thereby also be not suitable for the turning vane of high-temperature long-life life.In addition, nickel-base cast superalloy is melting and casting forming under vacuum all, and pure magnesium is difficult to join in the alloy melt, thus must make the Ni-Mg master alloy earlier, and charge into the rare gas element of certain pressure, make complicated operation, difficulty.
The object of the present invention is to provide that a kind of ductility and toughness at room temperature is good, high temperature endurance performance is high and antioxidant anticorrosive and cold-and-heat resistent fatigue property good, be applicable to the nickel-base cast superalloy of high performance and long service life aircraft engine turning vane or guider etc.
Based on above-mentioned purpose, and consider that the working stress that turning vane bears is little, so γ ' strengthening phase content is 45%(weight) about be advisable, simultaneously in order to improve the antioxidant anticorrosive performance, except that Cr, Ti, also added a certain amount of rare-earth element cerium Ce,, also added The addition of C o, Mo etc. in order to keep an amount of room temperature and hot strength.
The chemical ingredients of nickel-base cast superalloy of the present invention (weight %) is: Cr 13.0～14.8%, and Co 7.5～8.8%, and Mo 6.3～7.4%, B 0.005～0.016%, and Al 3.9～4.4%, and C 0.10～0.18%, Ti 3.3～3.8%, and Ce 0.005～0.03%, and surplus is Ni.
In the alloy, the effect of each element and the selection of content range thereof are presented below:
The main effect of Cr is the antioxidant anticorrosive performance that improves alloy.Cr＜13% o'clock, the antioxidant anticorrosive performance deficiency of alloy; Cr＞14.8% causes alloy to have becoming fragile tendency, and mechanical property descends, and T.C.P separates out too much mutually, so this alloy Cr content is 13.0～14.8%.
The Co solid solution in γ mutually and γ ' mutually, the solution strengthening effect is arranged, can improve γ ' phase solid solubility temperature, and matrix γ is stablized mutually, when Co＜7.5%, above-mentioned effect is relatively poor, Co＞8.8% o'clock is unhelpful to the plasticity and toughness of alloy, so Co content is advisable with 7.5～8.8%.
Mo is main solution strengthening element, and the intensity of alloy and enduring quality etc. are had bigger effect.When Mo＞7.4%, the plasticity and toughness of alloy descend, and cause the antioxidant anticorrosive mis-behave, have promoted the excessive of T.C.P phase to separate out, so the Mo that contains of alloy measures and is advisable with 6.2～7.4%.
B segregation in alloy and forms M in crystal boundary
3B
2, can strengthen crystal boundary, an amount of B can also improve the plasticity and the creep rupture strength of alloy.When B＜0.005%, little to the strengthening effect of alloy, and B＞0.016% o'clock, M
3B
2Mutually too much, easily cause hot tearing, so B content is advisable with 0.005～0.016%.
Rare earth element ce and O, S have higher avidity, can reduce O and S content in the alloy, and the Ce segregation can purify crystal boundary in crystal boundary, and makes carbide refinement, improve the plasticity and toughness and the high temperature endurance performance of alloy, and simultaneously, appropriate C e content can promote alloy surface Cr
2O
3The generation of fine and close protective membrane improves alloy antioxidant anticorrosive ability.The suitable add-on of Ce is 0.005～0.03% in this alloy.
Al is with Ti and forms γ ' Ni mutually
3The element of (Al, Ti), involutory gold utensil has the precipitation strength effect, guarantees the hot strength and the enduring quality of alloy; In addition, Al plays antioxygenation to alloy; Ti then has heat resistanceheat resistant and anti-sulphur corrosion effect, and this alloy is for guaranteeing enough intensity and enduring quality, and the Al amount is controlled at 3.9～4.4%, and the Ti amount is controlled at 3.4～4.4%.
In order to reduce being mingled with of alloy, guarantee the good plasticity and toughness of alloy, the control of the content of all the other elements is as follows in the alloy: Si≤0.2%, Mn≤0.4%, Fe≤0.5%, S≤0.01%, P≤0.01%.
The present invention can the different smelting furnaces under vacuum in melting, be cast into blanks such as required turning vane and guider.
Compared with prior art, the present invention has thermal shock resistance (as shown in table 1) and antioxidant anticorrosive performance (as shown in table 2) preferably.In addition, the present invention also has good ductility and toughness at room temperature and enduring quality.δ under the room temperature
5＞7%, impelling strength Ak＞2.6Kg-m/cm
2; Under 900 ℃ and the 20Kg load, creep rupture life＞520 hour.
In addition, the casting forming function of alloy of the present invention and good welding performance can satisfy turning vane complex-shaped, that the wall thickness difference is big, and particularly the cast form of block cast guider and blade are reprocessed the requirement of soldering.
Embodiment
The chemical ingredients scope of alloy according to the present invention, in vacuum induction furnace melting four stove alloys, and the four batches of turning vanes of under vacuum, having cast, meanwhile, the coupon of drawability and the enduring quality test usefulness of also having cast, the test plate (panel) that thermal shock test is used.Four stove alloy at room temperature tensile properties, impelling strength and enduring quality have been tested.The chemical ingredients of four stove alloys is as shown in table 3, and The performance test results is as shown in table 4.
The chemical ingredients (weight %) of table 3 embodiment alloy
The performance of table 4 embodiment alloy
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92104346 CN1030578C (en) | 1992-06-11 | 1992-06-11 | Nickel-based casting superalloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92104346 CN1030578C (en) | 1992-06-11 | 1992-06-11 | Nickel-based casting superalloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1066298A true CN1066298A (en) | 1992-11-18 |
| CN1030578C CN1030578C (en) | 1995-12-27 |
Family
ID=4940760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92104346 Expired - Fee Related CN1030578C (en) | 1992-06-11 | 1992-06-11 | Nickel-based casting superalloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1030578C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086208C (en) * | 1998-12-18 | 2002-06-12 | 中国科学院金属研究所 | High-temp Ni-based cast alloy |
| CN100342059C (en) * | 2002-03-05 | 2007-10-10 | 独立行政法人科学技术振兴机构 | Heat-resistant Ni-alloy material excellent in resistance to oxidation at high temperature |
| CN102947048A (en) * | 2010-06-14 | 2013-02-27 | 新日铁住金株式会社 | Welding material for ni-based heat-resistant alloy, and welded metal and welded joint each using same |
| CN103184896A (en) * | 2011-12-27 | 2013-07-03 | 中航商用航空发动机有限责任公司 | Turbine guide blade |
| CN110735067A (en) * | 2019-11-28 | 2020-01-31 | 中国科学院金属研究所 | Purification smelting process of nickel-based high-temperature alloys rich in active elements |
-
1992
- 1992-06-11 CN CN 92104346 patent/CN1030578C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086208C (en) * | 1998-12-18 | 2002-06-12 | 中国科学院金属研究所 | High-temp Ni-based cast alloy |
| CN100342059C (en) * | 2002-03-05 | 2007-10-10 | 独立行政法人科学技术振兴机构 | Heat-resistant Ni-alloy material excellent in resistance to oxidation at high temperature |
| CN102947048A (en) * | 2010-06-14 | 2013-02-27 | 新日铁住金株式会社 | Welding material for ni-based heat-resistant alloy, and welded metal and welded joint each using same |
| CN102947048B (en) * | 2010-06-14 | 2015-05-20 | 新日铁住金株式会社 | Welding material for ni-based heat-resistant alloy, and welded metal and welded joint each using same |
| CN103184896A (en) * | 2011-12-27 | 2013-07-03 | 中航商用航空发动机有限责任公司 | Turbine guide blade |
| CN110735067A (en) * | 2019-11-28 | 2020-01-31 | 中国科学院金属研究所 | Purification smelting process of nickel-based high-temperature alloys rich in active elements |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1030578C (en) | 1995-12-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING IRON AND STEEL GAONA TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: GENERAL RESEARCH INST. OF IRON AND STEEL, MINISTRY OF METALLURGICAL INDUSTRY Effective date: 20031218 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20031218 Address after: 100081 No. 76 South College Road, Beijing, Haidian District Patentee after: Beijing steel Gaona technology limited liability company Address before: 100081 No. 76 South College Road, Beijing, Haidian District Patentee before: Iron and Steel Central Research Institute of Ministry of Metallurgical Industry |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 19951227 |