CN102808115B - Heat-resisting nickel-based alloy - Google Patents
Heat-resisting nickel-based alloy Download PDFInfo
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- CN102808115B CN102808115B CN201210305903.1A CN201210305903A CN102808115B CN 102808115 B CN102808115 B CN 102808115B CN 201210305903 A CN201210305903 A CN 201210305903A CN 102808115 B CN102808115 B CN 102808115B
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Abstract
The invention discloses a heat-resisting nickel-based alloy, which consists of the following components in percentage by weight: 26.0 to 28.0 percent of Cr, 5.3 to 5.7 percent of Co, 8.2 to 8.6 percent of Mo, 2.4 to 2.8 percent of W, 0.4 to 0.6 percent of V, 3.8 to 4.2 percent of Ta, 5.6 to 6.0 percent of Al, 1.3 to 1.7 percent of Ti, 2.1 to 2.5 percent of Nb, 0.004 to 0.006 percent of B, more than or equal to 0.1 and less than or equal to 0.4 percent of Cu, more than 0 and less than or equal to 0.08 percent of C, more than 0 and less than or equal to 0.3 percent of Si, more than 0 and less than or equal to 0.5 percent of Mn and the balance of Ni.
Description
Technical field
The present invention relates to alloyed metal field, particularly a kind of high temperature resistant nickel base alloy.
Background technology
Superalloy refers to iron, nickel, cobalt for base, can a metalloid material of long term operation under high temperature more than 600 DEG C and certain stress.Since half a century, before aero-turbine, temperature brings up to 1677 DEG C from 730 DEG C of the forties.The raising of use temperature proposes more and more harsher requirement to materials for aeroengines.Nickel base superalloy is that performance is the most superior so far, and purposes is materials for aeroengines the most extensively.The ceiling temperature of this alloy use temperature current reaches about 1200 DEG C, close to the fusing point of alloy, but still is that in current advanced engine, withstand temp is the highest, the preferred material of the key part that stress-loaded is maximum.
Nickel base superalloy has excellent resistance to high temperature oxidation and the performance of high temperature corrosion.Compared with iron-base superalloy, nickel base superalloy has good thermal conductivity, higher structure stability, can the more element of solid solution and do not produce harmful phase; Nickel base superalloy, compared with cobalt base alloy, has light specific gravity, price is low, intensity is high and the feature of good in oxidation resistance.In addition, nickel base superalloy also has excellent castability and high temperature endurance performance.
Determine nickel base superalloy excellent properties be its Precipitation Face-centred Cubic Metals between compound γ ' phase (Ni
3al) strengthen.Some alloy is as In718 also orderly body-centered teteragonal γ " (Ni
3nb) strengthen.General cobalt base superalloy, owing to lacking the strengthening effect of γ ' phase, only by solution strengthening and carbide reinforced, is therefore generally difficult to the strength level reaching nickel base superalloy.
Nickel base superalloy is by suitably regulating alloying constituent, alloy can be made not only to have the incomparable hot strength of cobalt base alloy, but also there is higher initial melting temperature, preferably cold-heat fatigue property, higher plasticity and toughness, higher anti-oxidant and erosion resistance, lower density, on a lot of parts of aircraft engine, application has special meaning.
Although the domestic nickel base superalloy for aircraft engine has developed a lot, the alloys such as such as K403, K405, K441 and K417G, the maximum shortcoming of these alloys is exactly that initial melting temperature and plasticity difference compared with cobalt base superalloy are comparatively large, limits the application of these alloys.Although intermetallic compound has the high feature of the low and intensity of proportion, due to its plasticity and oxidation-resistance poor, limit it and use.So just need to develop a kind of alloy, require to there is high initial melting temperature, low density, there is good castability, good thermal fatigue property and higher high temperature oxidation resistance.
Summary of the invention
For the deficiencies in the prior art, an object of the present invention is to provide a kind of has higher melt can tolerate more than 1350 DEG C high temperature for a long time, and has the nickel-base alloy of better tensile strength and yield strength simultaneously.
For achieving the above object, the present invention adopts following technical scheme:
A kind of high temperature resistant nickel base alloy, described nickel-base alloy is made up of following component by weight percentage: Cr:26.0-28.0%, Co:5.3-5.7%, Mo:8.2-8.6%, W:2.4-2.8%, V:0.4-0.6%, Ta:3.8-4.2%, Al:5.6-6.0%, Ti:1.3-1.7%, Nb:2.1-2.5%, B:0.004-0.006%, 0.1≤Cu≤0.4,0 < C≤0.08,0 < Si≤0.3,0 < Mn≤0.5, surplus is Ni.
Preferably, described nickel-base alloy is made up of following component by weight percentage: Cr:26.5-27.5%, Co:5.4-5.6%, Mo:8.3-8.5%, W:2.5-2.7%, V:0.45-0.55%, Ta:3.9-4.1%, Al:5.7-5.9%, Ti:1.4-1.6%, Nb:2.2-2.4%, B:0.0045-0.0055%, 0.1≤Cu≤0.4,0 < C≤0.08,0 < Si≤0.3,0 < Mn≤0.5, surplus is Ni.
Most preferably, described nickel-base alloy is made up of following component by weight percentage: Cr:27%, Co:5.5%, Mo:8.4%, W:2.6%, V:0.50%, Ta:4.0%, Al:5.8%, Ti:1.5%, Nb:2.3%, B:0.005%, 0.1≤Cu≤0.4,0 < C≤0.08,0 < Si≤0.3,0 < Mn≤0.5, surplus is Ni.
Chromium can significantly improve intensity, hardness, wear resistance, oxidation-resistance, erosion resistance, can as the important alloying element of High-temperature resistant alloy material.
Containing strengthening elements such as higher Co, W, Mo, Ta in alloy provided by the invention, alloy is made to have good high temperature endurance performance and higher hot strength.
The present invention adds the carbide that appropriate B and V can form appropriate Dispersed precipitate, and B can strengthen crystal boundary simultaneously, thus improves the high-temperature behavior of nickel-base alloy further.
The present invention by making containing higher Al content and suitable Ti content in alloy, to ensure the antioxidant property that alloy is good and higher room temperature and hot strength.
The present invention adds suitable Nb, can suppress segregation, improves structure stability.
The present invention has following beneficial effect:
1) described above, the one-tenth that have adjusted alloy is grouped into, on the basis of great many of experiments, determine the component of alloy and the content of each element, the effect of each element is made to reach coordination technique effect, particularly Co, W, Mo, Ta etc. improve the alloying element of high-temperature behavior, its technique effect is worked in coordination with mutually, make the fusing point of alloy can more than 1470 DEG C, high temperature resistant, the oxidation resistent susceptibility of product are obviously improved, under the high temperature of 1350 DEG C-1400 DEG C can being operated in for a long time.
2) except high temperature resistant, the adjustment of alloying element proportioning makes the over-all propertieies such as intensity, toughness and corrosion resistance nature obviously improve.
Embodiment
Embodiment one
A kind of high temperature resistant nickel base alloy, described nickel-base alloy is made up of following component by weight percentage: Cr:26.0%, Co:5.7%, Mo:8.2%, W:2.8%, V:0.4%, Ta:4.2%, Al:5.6%, Ti:1.7%, Nb:2.1%, B:0.006%, 0.1≤Cu≤0.4,0 < C≤0.08,0 < Si≤0.3,0 < Mn≤0.5, surplus is Ni.
Embodiment two
A kind of high temperature resistant nickel base alloy, described nickel-base alloy is made up of following component by weight percentage: Cr:28.0%, Co:5.3%, Mo:8.6%, W:2.4%, V:0.6%, Ta:3.8%, Al:6.0%, Ti:1.3%, Nb:2.5%, B:0.004%, 0.1≤Cu≤0.4,0 < C≤0.08,0 < Si≤0.3,0 < Mn≤0.5, surplus is Ni.
Embodiment three
A kind of high temperature resistant nickel base alloy, described nickel-base alloy is made up of following component by weight percentage: Cr:26.5%, Co:5.6%, Mo:8.3%, W:2.7%, V:0.45%, Ta:4.1%, Al:5.7%, Ti:1.6%, Nb:2.2%, B:0.0055%, 0.1≤Cu≤0.4,0 < C≤0.08,0 < Si≤0.3,0 < Mn≤0.5, surplus is Ni.
Embodiment four
A kind of high temperature resistant nickel base alloy, described nickel-base alloy is made up of following component by weight percentage: Cr:27.5%, Co:5.4%, Mo:8.5%, W:2.5%, V:0.55%, Ta:3.9%, Al:5.9%, Ti:1.4%, Nb:2.4%, B:0.0045%, 0.1≤Cu≤0.4,0 < C≤0.08,0 < Si≤0.3,0 < Mn≤0.5, surplus is Ni.
Embodiment five
A kind of high temperature resistant nickel base alloy, described nickel-base alloy is made up of following component by weight percentage: Cr:27.0%, Co:5.5%, Mo:8.4%, W:2.6%, V:0.5%, Ta:4.0%, Al:5.8%, Ti:1.5%, Nb:2.3%, B:0.005%, 0.1≤Cu≤0.4,0 < C≤0.08,0 < Si≤0.3,0 < Mn≤0.5, surplus is Ni.
Applicant states, the present invention illustrates detailed process equipment and process flow process of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned detailed process equipment and process flow process, namely do not mean that the present invention must rely on above-mentioned detailed process equipment and process flow process and could implement.Person of ordinary skill in the field should understand, any improvement in the present invention, to equivalence replacement and the interpolation of ancillary component, the concrete way choice etc. of each raw material of product of the present invention, all drops within protection scope of the present invention and open scope.
Claims (1)
1. a high temperature resistant nickel base alloy, is characterized in that, described nickel-base alloy is made up of following component by weight percentage: Cr:27%, Co:5.5%, Mo:8.4%, W:2.6%, V:0.50%, Ta:4.0%, Al:5.8%, Ti:1.5%, Nb:2.3%, B:0.005%, 0.1≤Cu≤0.4,0 < C≤0.08,0 < Si≤0.3,0 < Mn≤0.5, surplus is Ni; The fusing point of alloy more than 1470 DEG C, under the high temperature of 1350 DEG C-1400 DEG C can being operated in for a long time.
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| CN201210305903.1A CN102808115B (en) | 2012-08-24 | 2012-08-24 | Heat-resisting nickel-based alloy |
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| CN201210305903.1A CN102808115B (en) | 2012-08-24 | 2012-08-24 | Heat-resisting nickel-based alloy |
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| CN102808115A CN102808115A (en) | 2012-12-05 |
| CN102808115B true CN102808115B (en) | 2015-06-03 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD299901A7 (en) * | 1984-10-16 | 1992-05-14 | Zi Fuer Festkoerperphysik Und Werkstofforschung,De | SLIDING ELEMENTS FOR WINTER SPORTS EQUIPMENT |
| CN102534309A (en) * | 2010-12-28 | 2012-07-04 | 株式会社日立制作所 | Ni-based superalloy, and turbine rotor and stator blades for gas turbine using the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0639650B2 (en) * | 1986-01-07 | 1994-05-25 | 住友金属工業株式会社 | High corrosion resistance Ni-based alloy with excellent toughness |
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2012
- 2012-08-24 CN CN201210305903.1A patent/CN102808115B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD299901A7 (en) * | 1984-10-16 | 1992-05-14 | Zi Fuer Festkoerperphysik Und Werkstofforschung,De | SLIDING ELEMENTS FOR WINTER SPORTS EQUIPMENT |
| CN102534309A (en) * | 2010-12-28 | 2012-07-04 | 株式会社日立制作所 | Ni-based superalloy, and turbine rotor and stator blades for gas turbine using the same |
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| CN102808115A (en) | 2012-12-05 |
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Effective date of registration: 20160713 Address after: 221004, No. 2, metalworking Road, Jinshan Development Zone, Jiangsu, Xuzhou Patentee after: JIANGSU VILORY ADVANCED MATERIALS TECHNOLOGY CO., LTD. Address before: Yinzhou District Lianfeng road 315175 Zhejiang city of Ningbo Province, No. 886 Patentee before: Li Luqing |