CN106191530B - Nickel-base alloy and the article formed by alloy - Google Patents
Nickel-base alloy and the article formed by alloy Download PDFInfo
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- CN106191530B CN106191530B CN201510296008.1A CN201510296008A CN106191530B CN 106191530 B CN106191530 B CN 106191530B CN 201510296008 A CN201510296008 A CN 201510296008A CN 106191530 B CN106191530 B CN 106191530B
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Abstract
The present invention provides a kind of nickel-base alloys, including：The cobalt of 7wt%~8wt%；The chromium of 6.75wt%~7.25wt%；The aluminium of 6.25wt%~6.55wt%；The tantalum of 6.3wt%~6.7wt%；The tungsten of 5.25wt%~6.75wt%；The molybdenum of 0.3wt%~0.7wt%；The hafnium of 0.12wt%~0.18wt%；The rhenium of 2.35wt%~2.75wt%；The carbon of 0.04wt%~0.06wt%；The boron of 0.003wt%~0.005wt%；The nickel of surplus.The application drops W content by balancing the contents of elements in the alloy such as each intensified element W, Mo, Ta, Al, Co, rises Al content and contains Re, makes that nickel-base alloy density is relatively low and comprehensive performance is preferable.
Description
This application claims being submitted on 04 20th, 2015, Patent Office of the People's Republic of China, application No. is 201510187146.6, inventions
The priority of the Chinese patent application of entitled " nickel-base alloy and the article formed by alloy ".
Technical field
The article formed the present invention relates to technical field of alloy more particularly to nickel-base alloy and by alloy.
Background technology
Nickel base superalloy is that within the scope of 650 DEG C~1000 DEG C there is higher intensity to resist with good using nickel as matrix
It aoxidizes, the high temperature alloy of resistance to combustion gas corrosion ability.Nickel base superalloy is to start in the later stage thirties to develop.With nickel-base high-temperature
Alloyapplication temperature constantly increases, and then requires to develop different nickel base superalloys.
Nickel base superalloy be manufacture gas-turbine unit hot passage parts critical material, currently, with CMSX-2,
CMSX-3, DD3 are mainly used in low-pressure turbine without Re high temperature alloys for representative and require on less high partial high pressure turbine.
With the raising of turbine inlet temperature (TIT), answered as high-pressure turbine as the high temperature alloy containing Re of representative using CMSX-4, Ren é N5, DD6
Main flow direction.But such alloy there are density it is big, of high cost, casting character is poor the problems such as, and it is domestic at present not yet
The system research of low-density high temperature alloy containing Re.CMSX-4, Ren é N5 and the high temperature containing Re that DD6 is domestic and international research comparative maturity
Alloy, composition are as follows：
CMSX-4 nickel base superalloys include：Al, 6.5wt% of Cr, 5.6wt% of Co, 6.5wt% of 9.0wt%
Ta, 6.0wt% W, 0.10wt% Hf, 0.05wt% C, 0.004wt% B, 3.0wt% Re, 0.6wt%
The Ti of Mo, 1.0wt% and the Ni of surplus.
N5 nickel base superalloys include：The Ta of Al, 7.0wt% of Cr, 6.2wt% of Co, 7.0wt% of 7.5wt%,
The Mo of Re, 1.50wt% of B, 3.0wt% of C, 0.004wt% of Hf, 0.05wt% of W, 0.15wt% of 5.0wt% with it is remaining
The Ni of amount.
DD6 nickel base superalloys include：Al, 7.5wt%'s of Cr, 5.6wt% of Co, 4.3wt% of 9.0wt%
The Re of B, 2.0wt% of C, 0.004wt% of Nb, 0.05wt% of Hf, 0.5wt% of W, 0.10wt% of Ta, 8.0wt%,
The Mo of the 2.00wt% and Ni of surplus.
Since the density of above-mentioned nickel base superalloy is higher, and the cost of above-mentioned nickel base superalloy is increased, and limited
Its application.
Invention content
Present invention solves the technical problem that the manufacture article for being to provide a kind of nickel-base alloy and being consequently formed, the application
Rhenium-containing nickel base superalloy have lower density.
In view of this, this application provides a kind of nickel-base alloys, including：
The cobalt of 7wt%~8wt%；
The chromium of 6.75wt%~7.25wt%；
The aluminium of 6.25wt%~6.55wt%；
The tantalum of 6.3wt%~6.7wt%；
The tungsten of 5.25wt%~6.75wt%；
The molybdenum of 0.3wt%~0.7wt%；
The hafnium of 0.12wt%~0.18wt%；
The rhenium of 2.35wt%~2.75wt%；
The carbon of 0.04wt%~0.06wt%；
The boron of 0.003wt%~0.005wt%；
The nickel of surplus.
Preferably, include the chromium of 6.9wt%~7.1wt%.
Preferably, include the tantalum of 6.45wt%~6.6wt%.
Preferably, include the rhenium of 2.4wt%~2.6wt%.
Preferably, include the hafnium of 0.13wt%~0.16wt%.
Preferably, include the molybdenum of 0.45wt%~0.6wt%.
Preferably, include the aluminium of 6.3wt%~6.5wt%.
Present invention also provides a kind of nickel-base alloys, including：
The cobalt of 7wt%~8wt%；
The chromium of 6.75wt%~7.25wt%；
The aluminium of 6.25wt%~6.55wt%；
The tantalum of 6.3wt%~6.7wt%；
The tungsten of 5.25wt%~5.75wt%；
The molybdenum of 0.3wt%~0.7wt%；
The hafnium of 0.12wt%~0.18wt%；
The rhenium of 2.35wt%~2.75wt%；
The carbon of 0.04wt%~0.06wt%；
The boron of 0.003wt%~0.005wt%；
The nickel of surplus.
Preferably, include the chromium of 6.9wt%~7.1wt%.
Preferably, include the tantalum of 6.45wt%~6.6wt%.
Preferably, include the rhenium of 2.4wt%~2.6wt%.
Preferably, include the hafnium of 0.13wt%~0.16wt%.
Preferably, include the molybdenum of 0.45wt%~0.6wt%.
Preferably, include the aluminium of 6.3wt%~6.5wt%.
Preferably, include the tungsten of 5.4wt%~5.6wt%.
Present invention also provides a kind of nickel-base alloys, including：
The cobalt of 7wt%~8wt%；
The chromium of 6.75wt%~7.25wt%；
The aluminium of 6.25wt%~6.55wt%；
The tantalum of 6.3wt%~6.7wt%；
The tungsten of 6.25wt%~6.75wt%；
The molybdenum of 0.3wt%~0.7wt%；
The hafnium of 0.12wt%~0.18wt%；
The rhenium of 2.35wt%~2.75wt%；
The carbon of 0.04wt%~0.06wt%；
The boron of 0.003wt%~0.005wt%；
The nickel of surplus.
Preferably, include the chromium of 6.9wt%~7.1wt%.
Preferably, include the tantalum of 6.45wt%~6.6wt%.
Preferably, include the rhenium of 2.4wt%~2.6wt%.
Preferably, include the hafnium of 0.13wt%~0.16wt%.
Preferably, include the molybdenum of 0.45wt%~0.6wt%.
Preferably, include the aluminium of 6.3wt%~6.5wt%.
Preferably, include the tungsten of 6.3wt%~6.6wt%.
This application provides a kind of nickel-base alloys, including：
The cobalt of 7.5wt%；
The chromium of 7.0wt%；
The aluminium of 6.4wt%；
The tantalum of 6.5wt%；
The tungsten of 5.5wt%；
The molybdenum of 0.5wt%；
The hafnium of 0.15wt%；
The rhenium of 2.6wt%；
The carbon of 0.05wt%；
The boron of 0.004wt%；
The nickel of surplus.
Present invention also provides a kind of nickel-base alloys, including：
The cobalt of 7.5wt%；
The chromium of 7.0wt%；
The aluminium of 6.4wt%；
The tantalum of 6.5wt%；
The tungsten of 6.5wt%；
The molybdenum of 0.5wt%；
The hafnium of 0.15wt%；
The rhenium of 2.6wt%；
The carbon of 0.05wt%；
The boron of 0.004wt%；
The nickel of surplus.
Present invention also provides a kind of manufacture articles, and the article is applied to gas engine hot passage parts, by including
The alloy of following element is formed：
The cobalt of 7wt%~8wt%；
The chromium of 6.75wt%~7.25wt%；
The aluminium of 6.25wt%~6.55wt%；
The tantalum of 6.3wt%~6.7wt%；
The tungsten of 5.25wt%~6.75wt%；
The molybdenum of 0.3wt%~0.7wt%；
The hafnium of 0.12wt%~0.18wt%；
The rhenium of 2.35wt%~2.75wt%；
The carbon of 0.04wt%~0.06wt%；
The boron of 0.003wt%~0.005wt%；
The nickel of surplus.
Present invention also provides a kind of manufacture articles, and the article is applied to gas engine hot passage parts, by including
The alloy of following element is formed：
The cobalt of 7wt%~8wt%；
The chromium of 6.75wt%~7.25wt%；
The aluminium of 6.25wt%~6.55wt%；
The tantalum of 6.3wt%~6.7wt%；
The tungsten of 5.25wt%~5.75wt%；
The molybdenum of 0.3wt%~0.7wt%；
The hafnium of 0.12wt%~0.18wt%；
The rhenium of 2.35wt%~2.75wt%；
The carbon of 0.04wt%~0.06wt%；
The boron of 0.003wt%~0.005wt%；
The nickel of surplus.
Present invention also provides a kind of manufacture articles, and the article is applied to gas engine hot passage parts, by including
The alloy of following element is formed：
The cobalt of 7wt%~8wt%；
The chromium of 6.75wt%~7.25wt%；
The aluminium of 6.25wt%~6.55wt%；
The tantalum of 6.3wt%~6.7wt%；
The tungsten of 6.25wt%~6.75wt%；
The molybdenum of 0.3wt%~0.7wt%；
The hafnium of 0.12wt%~0.18wt%；
The rhenium of 2.35wt%~2.75wt%；
The carbon of 0.04wt%~0.06wt%；
The boron of 0.003wt%~0.005wt%；
The nickel of surplus.
Present invention also provides a kind of manufacture articles, and the article is applied to gas engine hot passage parts, by including
The alloy of following element is formed：
The cobalt of 7.5wt%；
The chromium of 7.0wt%；
The aluminium of 6.4wt%；
The tantalum of 6.5wt%；
The tungsten of 5.5wt%；
The molybdenum of 0.5wt%；
The hafnium of 0.15wt%；
The rhenium of 2.6wt%；
The carbon of 0.05wt%；
The boron of 0.004wt%；
The nickel of surplus.
Present invention also provides a kind of manufacture articles, and the article is applied to gas engine hot passage parts, by including
The alloy of following element is formed：
The cobalt of 7.5wt%；
The chromium of 7.0wt%；
The aluminium of 6.4wt%；
The tantalum of 6.5wt%；
The tungsten of 6.5wt%；
The molybdenum of 0.5wt%；
The hafnium of 0.15wt%；
The rhenium of 2.6wt%；
The carbon of 0.05wt%；
The boron of 0.004wt%；
The nickel of surplus.
This application provides a kind of nickel-base alloys, including：The cobalt of 7wt%~8wt%；6.75wt%~7.25wt%'s
Chromium；The aluminium of 6.25wt%~6.55wt%；The tantalum of 6.3wt%~6.7wt%；The tungsten of 5.25wt%~6.75wt%；0.3wt%
The molybdenum of~0.7wt%；The hafnium of 0.12wt%~0.18wt%；The rhenium of 2.35wt%~2.75wt%；0.04wt%~
The carbon of 0.06wt%；The boron of 0.003wt%~0.005wt%；The nickel of surplus.
Present invention also provides a kind of nickel-base alloys, including：The cobalt of 7wt%~8wt%；6.75wt%~7.25wt%'s
Chromium；The aluminium of 6.25wt%~6.55wt%；The tantalum of 6.3wt%~6.7wt%；The tungsten of 5.25wt%~5.75wt%；0.3wt%
The molybdenum of~0.7wt%；The hafnium of 0.12wt%~0.18wt%；The rhenium of 2.35wt%~2.75wt%；0.04wt%~
The carbon of 0.06wt%；The boron of 0.003wt%~0.005wt%；The nickel of surplus.
Present invention also provides a kind of nickel-base alloys, including：The cobalt of 7wt%~8wt%；6.75wt%~7.25wt%'s
Chromium；The aluminium of 6.25wt%~6.55wt%；The tantalum of 6.3wt%~6.7wt%；The tungsten of 6.25wt%~6.75wt%；0.3wt%
The molybdenum of~0.7wt%；The hafnium of 0.12wt%~0.18wt%；The rhenium of 2.35wt%~2.75wt%；0.04wt%~
The carbon of 0.06wt%；The boron of 0.003wt%~0.005wt%；The nickel of surplus.This application provides nickel-base alloy in contain
Re, and the content by increasing tungsten, reduce the content of aluminium, reduce the content of tantalum, increase the content of niobium and are closed to reduce nickel-base high-temperature
The density of gold, and ensure that the mechanical property of alloy.
Description of the drawings
Fig. 1 is curve graph of the constituent content to alloy Effects of Density；
Fig. 2 is the curve graph that constituent content influences alloy hardening constituent γ ' contents；
Fig. 3 is the curve graph that constituent content is completely dissolved alloy hardening constituent γ ' temperature influence；
Fig. 4 is the curve graph that constituent content influences alloy heat treatment window；
Fig. 5 is the comparison column diagram of the density and prior art nickel-base alloy density of the nickel-base alloy of the embodiment of the present invention；
Fig. 6 is pair of the nickel-base alloy initial melting temperature and prior art nickel base superalloy initial melting temperature of the embodiment of the present invention
Compare column diagram；
Fig. 7 closes for the solid solubility temperature of hardening constituent γ ＇ in the nickel-base alloy of the embodiment of the present invention with prior art nickel-base high-temperature
The comparison column diagram of gold；
Fig. 8 is the comparison of nickel-base alloy mushy zone the section size and prior art nickel base superalloy of the embodiment of the present invention
Column diagram；
The highest content and prior art nickel base superalloy that Fig. 9 is the nickel-base alloy hardening constituent γ ＇ of the embodiment of the present invention
Comparison column diagram.
Specific implementation mode
For a further understanding of the present invention, the preferred embodiment of the invention is described with reference to embodiment, still
It should be appreciated that these descriptions are only the feature and advantage further illustrated the present invention, rather than to the claims in the present invention
Limitation.
The embodiment of the invention discloses a kind of nickel-base alloys, including：
The cobalt of 7wt%~8wt%；
The chromium of 6.75wt%~7.25wt%；
The aluminium of 6.25wt%~6.55wt%；
The tantalum of 6.3wt%~6.7wt%；
The tungsten of 5.25wt%~6.75wt%；
The molybdenum of 0.3wt%~0.7wt%；
The hafnium of 0.12wt%~0.18wt%；
The rhenium of 2.35wt%~2.75wt%；
The carbon of 0.04wt%~0.06wt%；
The boron of 0.003wt%~0.005wt%；
The nickel of surplus.
Nickel base superalloy includes three kinds of basic reinforcing means, i.e. solution strengthening, precipitation hardened and intercrystalline strengthening.Wherein
Co, Cr, Mo and elements such as w have a solution strengthening effect, and the elements such as Al, Ti, Nb and Ta have a precipitation hardened effect, C, B with
The elements such as Zr have the effects that intercrystalline strengthening.For the application by rationally designing the ingredient of alloy, make that alloy reaches is best strong
Change effect, and the nickel base superalloy of the application is made to have higher temperature capability, antioxygenic property excellent with hot corrosion resistance
It is good, also there is good structure stability and casting character.
Co and Ni can form continuous substitution solid solution and become (Ni, Co)3(Al, Ti) strengthens γ ' phases, to improve
The high-temperature behavior of alloy.High Co contents can make alloy possess high intensity and creep-resistant property, and improve γ ' and be mutually dissolved temperature
Degree improves the flexibility of heat treatment process, reduces the generation of thermal induction hole as far as possible；But then there is HCP- in Co too high levels
The Ni of D024 structures3The presence of Ti phases, the phase can be such that intensity declines, Ni3Ti phases itself are without induration and to consume a part
γ ' phases.It is adjusted, the content of herein described cobalt is 7wt%~8wt%.In another embodiment, the cobalt contains
Amount is preferably 7.2wt%~7.8wt%.
Cr mainly increases anti-oxidant and anti-corrosion capability in nickel base superalloy.Cr and Ni, which is formed, has certain solubility
Limit solid solution, main solution strengthening γ matrixes, low-alloyed elevated temperature strength drops in excessive Cr, and Cr is easy to be formed under high temperature
Harmful phase σ phases.In one embodiment, the content of the chromium is 6.75wt%~7.25wt%, in another embodiment,
The content of the chromium is 6.9wt%~7.1wt%.
W is solution strengthening element important in Ni-base P/M Superalloy, has larger solid solubility in γ matrix phases,
The lattice constant for causing γ phases and elasticity modulus are had to big variation, solid solution is risen and strengthens effect.But excessively high W can promote
TCP phases are formed.The content of tungsten described herein is 5.25wt%~6.75wt%, in a specific embodiment, described
The content of tungsten is 5.3wt%~6.6wt%, in a specific embodiment, the content of the tungsten be 5.45wt%~
5.55wt%.
Al is that maximum alloying element is mutually influenced on γ ', and γ ' is mutually Ni3Al.In a specific embodiment, described
The content of Al is 6.25wt%~6.55wt%.In a specific embodiment, the content of the Al be 6.30wt%~
6.50wt%.In a specific embodiment, the content of the Al is 6.35wt%~6.45wt%.
Since the atomic radius of Ta is larger, the lattice constant of γ ' phases can be obviously increased by being added in alloy, improve γ '
The reinforcing effect of phase.Ta is added, neither influences alloy plasticity, the creep strength of alloy also can be improved, it is most important that can be bright
The aobvious dwell time crack growth rate for reducing by 704 DEG C.The content of tantalum described herein is 6.3wt%~6.7wt%, one
In a specific embodiment, the content of the tantalum is 6.45wt%~6.6wt%.
Mo is solution strengthening element important in Ni-base P/M Superalloy, has larger solid solution in γ matrix phases
The lattice constant for causing γ phases and elasticity modulus, are there is big variation by degree, are risen to solid solution and are strengthened effect.But excessively high Mo can
TCP phases are promoted to be formed.In a specific embodiment, the content of the Mo is 0.3wt%~0.7wt%, specific at one
In embodiment, the content of the Mo is 0.45wt%~0.6wt%.
The content of Hf is 0.12wt%~0.18wt% in the application, and in a specific embodiment, the Hf's contains
Amount is 0.13wt%~0.16wt%, and in a specific embodiment, the content of the Hf is 0.14wt%~0.15wt%.
Intergranular binding force can be improved with these crystal boundary trace element segregations of B to grain boundaries in C, strengthens crystal boundary, is closed to improve
Creep strength, plasticity and the low all cycle fatigue lifes of gold.But when these element excessive additions, then promote carbon (boron) compound
Precipitation, the above-mentioned performance of alloy is not further enhanced.The content of herein described carbon be 0.04wt%~
The content of 0.06wt%, the boron are 0.003wt%~0.005wt%.
Present invention also provides a specific embodiment, the nickel-base alloy includes：The cobalt of 7wt%~8wt%；
The chromium of 6.75wt%~7.25wt%；The aluminium of 6.25wt%~6.55wt%；The tantalum of 6.3wt%~6.7wt%；5.25wt%~
The tungsten of 5.75wt%；The molybdenum of 0.3wt%~0.7wt%；The hafnium of 0.12wt%~0.18wt%；2.35wt%~2.75wt%'s
Rhenium；The carbon of 0.04wt%~0.06wt%；The boron of 0.003wt%~0.005wt%；The nickel of surplus.
For such nickel-base alloy, wherein the preferred scope of alloying element and the alloying element of above-mentioned nickel-base alloy is preferred
Range is identical, and only in a specific embodiment, the content of W is 5.4wt%~5.6wt% to the content of W.
Present invention also provides a specific embodiment, the nickel-base alloy includes：The cobalt of 7wt%~8wt%；
The chromium of 6.75wt%~7.25wt%；The aluminium of 6.25wt%~6.55wt%；The tantalum of 6.3wt%~6.7wt%；6.25wt%~
The tungsten of 6.75wt%；The molybdenum of 0.3wt%~0.7wt%；The hafnium of 0.12wt%~0.18wt%；2.35wt%~2.75wt%'s
Rhenium；The carbon of 0.04wt%~0.06wt%；The boron of 0.003wt%~0.005wt%；The nickel of surplus.
For such nickel-base alloy, wherein the preferred scope of alloying element and the alloying element of above-mentioned nickel-base alloy is preferred
Range is identical, and only in a specific embodiment, the content of W is 6.3wt%~6.6wt% to the content of W.
Present invention also provides a kind of nickel-base alloys, including：The cobalt of 7.5wt%；The chromium of 7.0wt%；The aluminium of 6.4wt%；
The tantalum of 6.5wt%；The tungsten of 5.5wt%；The molybdenum of 0.5wt%；The hafnium of 0.15wt%；The rhenium of 2.6wt%；The carbon of 0.05wt%；
The boron of 0.004wt%；The nickel of surplus.
Present invention also provides a kind of nickel-base alloys, including：The cobalt of 7.5wt%；The chromium of 7.0wt%；The aluminium of 6.4wt%；
The tantalum of 6.5wt%；The tungsten of 6.5wt%；The molybdenum of 0.5wt%；The hafnium of 0.15wt%；The rhenium of 2.6wt%；The carbon of 0.05wt%；
The boron of 0.004wt%；The nickel of surplus.
The application mainly by reducing the content of W, increases the content of Al to drop low-alloyed density, to ensure the power of alloy
Learn performance.As shown in FIG. 1, FIG. 1 is constituent contents to the curve graph of alloy Effects of Density, as can be seen from FIG. 1, increases Al content,
W content is reduced, the density of alloy significantly reduces.As shown in Figure 2,3, 4, Fig. 2 is constituent content to alloy hardening constituent γ ' content shadows
Loud curve graph, Fig. 3 are the curve graph that constituent content is completely dissolved alloy hardening constituent γ ' temperature influence, and Fig. 4 is constituent content
On the curve graph that alloy heat treatment window influences, according to fig. 2,3,4 it is found that increase Al content, W content is reduced, hardening constituent γ ' contains
Amount increases, and thermal stability increases, and heat treatment window size has and slightly reduces, and reduces W content, increases Al content, and hardening constituent γ ' contains
Amount increases, and thermal stability slightly reduces, and heat treatment window size becomes larger.
Herein described nickel-base alloy is obtained by the mode cast, that is, prepares the nickel-base alloy casting with said components
The preparation method of ingot, the Nickel base alloy cast ingot is carried out according to mode well known to those skilled in the art.
Nickel base superalloy can be processed into gas-turbine unit rotating vane (movable vane), non-rotating blade (stator blade), can
Turbine components are prepared by a variety of different methods, such as powder metallurgic method (powder processed, hot isostatic pressing, isothermal forging etc.), ingot casting
Subsequent directional solidification, model casting, the subsequent thermo-mechanical processi of ingot casting, near-net-shape casting, chemical vapor deposition, physical vapour deposition (PVD)
Deng.The application preferably uses ingot casting, subsequent directional solidification and model casting by the article that nickel-base alloy manufactures.In casting process
Molten metal is poured into mould, to manufacture required shape.Usually being manufactured with model casting cannot be by usual manufacturer's legal system
The component made, such as turbo blade with complex shape.The manufacturing method of mould is using wax or the other materials system that can be melted
Modeling type, i.e., immerse refractory wass by wax pattern, is dried, and repeats to immerse this dry process of slurry neutralization, until reaching
Firm thickness；Later, entire model is put into baking oven, and wax is made to melt.This generates the nickel-base alloys that can use melting
The mould of filling.Before casting, mould is preheated to remove remaining wax, and adhesive is made to harden；Preferable scheme is that pouring in a vacuum
Casting keeps intensity best and improves creep-resistant property by different heat treatment after casting.
The generation type of embodiment according to the present invention, herein described nickel-base alloy is manufacture article, the article
Gas engine component is can be applied to, gas engine hot passage parts are specifically applicable to.The article of herein described manufacture
Nickel-base alloy include：The cobalt of 7wt%~8wt%；The chromium of 6.75wt%~7.25wt%；6.25wt%~6.55wt%'s
Aluminium；The tantalum of 6.3wt%~6.7wt%；The tungsten of 5.25wt%~6.75wt%；The molybdenum of 0.3wt%~0.7wt%；0.12wt%
The hafnium of~0.18wt%；The rhenium of 2.35wt%~2.75wt%；The carbon of 0.04wt%~0.06wt%；0.003wt%~
The boron of 0.005wt%；The nickel of surplus.
According to still another embodiment herein, wherein the form of the present invention is a kind of article of manufacture, the Ni-based conjunction
Gold includes：The cobalt of 7wt%~8wt%；The chromium of 6.75wt%~7.25wt%；The aluminium of 6.25wt%~6.55wt%；6.3wt%
The tantalum of~6.7wt%；The tungsten of 5.25wt%~5.75wt%；The molybdenum of 0.3wt%~0.7wt%；0.12wt%~0.18wt%
Hafnium；The rhenium of 2.35wt%~2.75wt%；The carbon of 0.04wt%~0.06wt%；The boron of 0.003wt%~0.005wt%；
The nickel of surplus.
According to still another embodiment herein, wherein the form of the present invention is a kind of article of manufacture, the Ni-based conjunction
Gold includes：The cobalt of 7wt%~8wt%；The chromium of 6.75wt%~7.25wt%；The aluminium of 6.25wt%~6.55wt%；6.3wt%
The tantalum of~6.7wt%；The tungsten of 6.25wt%~6.75wt%；The molybdenum of 0.3wt%~0.7wt%；0.12wt%~0.18wt%
Hafnium；The rhenium of 2.35wt%~2.75wt%；The carbon of 0.04wt%~0.06wt%；The boron of 0.003wt%~0.005wt%；
The nickel of surplus.
According to still another embodiment herein, wherein the form of the present invention is a kind of article of manufacture, the Ni-based conjunction
Gold includes：The cobalt of 7.5wt%；The chromium of 7.0wt%；The aluminium of 6.4wt%；The tantalum of 6.5wt%；The tungsten of 5.5wt%；0.5wt%'s
Molybdenum；The hafnium of 0.15wt%；The rhenium of 2.6wt%；The carbon of 0.05wt%；The boron of 0.004wt%；The nickel of surplus.
According to still another embodiment herein, wherein the form of the present invention is a kind of article of manufacture, the Ni-based conjunction
Gold includes：The cobalt of 7.5wt%；The chromium of 7.0wt%；The aluminium of 6.4wt%；The tantalum of 6.5wt%；The tungsten of 6.5wt%；0.5wt%'s
Molybdenum；The hafnium of 0.15wt%；The rhenium of 2.6wt%；The carbon of 0.05wt%；The boron of 0.004wt%；The nickel of surplus.
The above-mentioned manufacture article of the application is formed by the method for casting, the described method comprises the following steps：(1) it prepares
Ingot casting with said components；(2) remelting ingot casting and it is cast as the article with specific shape and size；(3) it uses
Heat treatment process appropriate is heat-treated the article.
Contain Re in nickel base superalloy provided by the present application, is improved by the way that the content of Al is opposite, the content of W reduces, and makes conjunction
The density of gold reduces, and ensure that the mechanical property of alloy, and by adjusting the content of alloying element, so that nickel-base alloy is had close
It is excellent to spend low, at low cost, heterogeneous microstructure stability, mechanical property and processing performance.The experimental results showed that the application provides
Nickel base superalloy the existing rhenium-containing nickel-base alloy of density ratio it is low.
For a further understanding of the present invention, nickel base superalloy provided by the invention is carried out with reference to embodiment detailed
Illustrate, protection scope of the present invention is not limited by the following examples.
Embodiment 1
Nickel base superalloy ingot casting is prepared, composition is as shown in table 1, and the Nickel base alloy cast ingot of the present embodiment is calculated as alloy 1.
The nickel-base alloy performance of nickel-base alloy and the prior art that the present embodiment provides is compared, as Fig. 5, Fig. 6, Fig. 7, Fig. 8,
Shown in Fig. 9；The nickel-base alloy of the prior art is also to be obtained by way of casting.Fig. 5 is that the nickel-base alloy of the present embodiment is close
Degree compares column diagram with prior art nickel-base alloy density；Fig. 6 is the nickel-base alloy initial melting temperature and the prior art of the present embodiment
The comparison column diagram of nickel base superalloy initial melting temperature；Fig. 7 be the present embodiment nickel-base alloy in hardening constituent γ ＇ solid solubility temperature
With the comparison column diagram of prior art nickel base superalloy；Fig. 8 is the nickel-base alloy mushy zone section size of the present embodiment and shows
There is the comparison column diagram of technology nickel base superalloy；The highest content and show that Fig. 9 is the nickel-base alloy hardening constituent γ ＇ of the present embodiment
There is the comparison column diagram of technology nickel base superalloy.
Embodiment 2
Nickel base superalloy ingot casting is prepared, composition is as shown in table 1, and the Nickel base alloy cast ingot of the present embodiment is calculated as alloy 2.
The nickel-base alloy performance of nickel-base alloy and the prior art that the present embodiment provides is compared, as Fig. 5, Fig. 6, Fig. 7, Fig. 8,
Shown in Fig. 9；The nickel-base alloy of the prior art is also to be obtained by way of casting.Fig. 5 is that the nickel-base alloy of the present embodiment is close
Degree compares column diagram with prior art nickel-base alloy density；Fig. 6 is the nickel-base alloy initial melting temperature and the prior art of the present embodiment
The comparison column diagram of nickel base superalloy initial melting temperature；Fig. 7 be the present embodiment nickel-base alloy in hardening constituent γ ＇ solid solubility temperature
With the comparison column diagram of prior art nickel base superalloy；Fig. 8 is the nickel-base alloy mushy zone section size of the present embodiment and shows
There is the comparison column diagram of technology nickel base superalloy；The highest content and show that Fig. 9 is the nickel-base alloy hardening constituent γ ＇ of the present embodiment
There is the comparison column diagram of technology nickel base superalloy.
Embodiment 3
Nickel base superalloy ingot casting is prepared, composition is as shown in table 1, and the Nickel base alloy cast ingot of the present embodiment is calculated as alloy 3.
The nickel-base alloy performance of nickel-base alloy and the prior art that the present embodiment provides is compared, as Fig. 5, Fig. 6, Fig. 7, Fig. 8,
Shown in Fig. 9；The nickel-base alloy of the prior art is also to be obtained by way of casting.Fig. 5 is that the nickel-base alloy of the present embodiment is close
Degree compares column diagram with prior art nickel-base alloy density；Fig. 6 is the nickel-base alloy initial melting temperature and the prior art of the present embodiment
The comparison column diagram of nickel base superalloy initial melting temperature；Fig. 7 be the present embodiment nickel-base alloy in hardening constituent γ ＇ solid solubility temperature
With the comparison column diagram of prior art nickel base superalloy；Fig. 8 is the nickel-base alloy mushy zone section size of the present embodiment and shows
There is the comparison column diagram of technology nickel base superalloy；The highest content and show that Fig. 9 is the nickel-base alloy hardening constituent γ ＇ of the present embodiment
There is the comparison column diagram of technology nickel base superalloy.
Embodiment 4
Nickel base superalloy ingot casting is prepared, composition is as shown in table 1, and the Nickel base alloy cast ingot of the present embodiment is calculated as alloy 4.
The nickel-base alloy performance of nickel-base alloy and the prior art that the present embodiment provides is compared, as Fig. 5, Fig. 6, Fig. 7, Fig. 8,
Shown in Fig. 9；The nickel-base alloy of the prior art is also to be obtained by way of casting.Fig. 5 is that the nickel-base alloy of the present embodiment is close
Degree compares column diagram with prior art nickel-base alloy density；Fig. 6 is the nickel-base alloy initial melting temperature and the prior art of the present embodiment
The comparison column diagram of nickel base superalloy initial melting temperature；Fig. 7 be the present embodiment nickel-base alloy in hardening constituent γ ＇ solid solubility temperature
With the comparison column diagram of prior art nickel base superalloy；Fig. 8 is the nickel-base alloy mushy zone section size of the present embodiment and shows
There is the comparison column diagram of technology nickel base superalloy；The highest content and show that Fig. 9 is the nickel-base alloy hardening constituent γ ＇ of the present embodiment
There is the comparison column diagram of technology nickel base superalloy.
Embodiment 5
Nickel base superalloy ingot casting is prepared, composition is as shown in table 1, and the Nickel base alloy cast ingot of the present embodiment is calculated as alloy 5.
The nickel-base alloy performance of nickel-base alloy and the prior art that the present embodiment provides is compared, as Fig. 5, Fig. 6, Fig. 7, Fig. 8,
Shown in Fig. 9；The nickel-base alloy of the prior art is also to be obtained by way of casting.Fig. 5 is that the nickel-base alloy of the present embodiment is close
Degree compares column diagram with prior art nickel-base alloy density；Fig. 6 is the nickel-base alloy initial melting temperature and the prior art of the present embodiment
The comparison column diagram of nickel base superalloy initial melting temperature；Fig. 7 be the present embodiment nickel-base alloy in hardening constituent γ ＇ solid solubility temperature
With the comparison column diagram of prior art nickel base superalloy；Fig. 8 is the nickel-base alloy mushy zone section size of the present embodiment and shows
There is the comparison column diagram of technology nickel base superalloy；The highest content and show that Fig. 9 is the nickel-base alloy hardening constituent γ ＇ of the present embodiment
There is the comparison column diagram of technology nickel base superalloy.
Embodiment 6
Nickel base superalloy ingot casting is prepared, composition is as shown in table 1, and the Nickel base alloy cast ingot of the present embodiment is calculated as alloy 6.
The nickel-base alloy performance of nickel-base alloy and the prior art that the present embodiment provides is compared, as Fig. 5, Fig. 6, Fig. 7, Fig. 8,
Shown in Fig. 9；The nickel-base alloy of the prior art is also to be obtained by way of casting.Fig. 5 is that the nickel-base alloy of the present embodiment is close
Degree compares column diagram with prior art nickel-base alloy density；Fig. 6 is the nickel-base alloy initial melting temperature and the prior art of the present embodiment
The comparison column diagram of nickel base superalloy initial melting temperature；Fig. 7 be the present embodiment nickel-base alloy in hardening constituent γ ＇ solid solubility temperature
With the comparison column diagram of prior art nickel base superalloy；Fig. 8 is the nickel-base alloy mushy zone section size of the present embodiment and shows
There is the comparison column diagram of technology nickel base superalloy；The highest content and show that Fig. 9 is the nickel-base alloy hardening constituent γ ＇ of the present embodiment
There is the comparison column diagram of technology nickel base superalloy.
As can be seen from FIG. 5, the density of nickel-base alloy of the invention and existing nickel base superalloy are all low；It can according to Fig. 6
Know, the initial melting temperature of alloy 2 is all higher than high temperature alloy containing Re both domestic and external；Alloy 5 is suitable with DD6, than CMSX-4 high；Alloy 1
Suitable with N5, high alloy initial melting temperature can make the sufficient solution heat treatment of alloy to obtain high creep strength；According to
Fig. 7 is it is found that the thermal stability of hardening constituent γ ' is all than N5 and CMSX-4 high in all alloys；As can be seen from FIG. 8, alloy 2,5 with
DD6 is suitable, and mushy zone is smaller to be more conducive to crystal growth；As can be seen from FIG. 9, the highest content of hardening constituent γ ' all compares in alloy
DD6, CMSX-4 want high.
Embodiment 7
A kind of nickel base superalloy ingot casting, composition are as shown in table 1.
Embodiment 8
A kind of nickel base superalloy ingot casting, composition are as shown in table 1.
Embodiment 9
A kind of nickel base superalloy ingot casting, composition are as shown in table 1.
The compositional data table of 1 Examples 1 to 9 Nickel base alloy cast ingot of table
| Group | Ni | Co | Cr | Al | Ta | W | Mo | Hf | Re | C | B |
| Embodiment 1 | Surplus | 7.5 | 7.00 | 6.40 | 6.50 | 5.50 | 0.50 | 0.15 | 2.60 | 0.05 | 0.004 |
| Embodiment 2 | Surplus | 7 | 6.75 | 6.25 | 6.30 | 5.25 | 0.30 | 0.12 | 2.35 | 0.04 | 0.003 |
| Embodiment 3 | Surplus | 8 | 7.25 | 6.55 | 6.70 | 5.75 | 0.70 | 0.18 | 2.75 | 0.06 | 0.005 |
| Embodiment 4 | Surplus | 7.5 | 7.00 | 6.40 | 6.50 | 6.50 | 0.50 | 0.15 | 2.60 | 0.05 | 0.004 |
| Embodiment 5 | Surplus | 7 | 6.75 | 6.25 | 6.30 | 6.25 | 0.30 | 0.12 | 2.35 | 0.04 | 0.003 |
| Embodiment 6 | Surplus | 8 | 7.25 | 6.55 | 6.70 | 6.75 | 0.70 | 0.18 | 2.75 | 0.06 | 0.005 |
| Embodiment 7 | Surplus | 7.2 | 6.9 | 6.3 | 6.40 | 5.3 | 0.45 | 0.13 | 2.4 | 0.05 | 0.003 |
| Embodiment 8 | Surplus | 7.4 | 7.1 | 6.5 | 6.60 | 5.65 | 0.60 | 0.16 | 2.6 | 0.06 | 0.004 |
| Embodiment 9 | Surplus | 7.6 | 6.85 | 6.45 | 6.65 | 6.65 | 0.55 | 0.14 | 2.5 | 0.06 | 0.005 |
The explanation of above example is only intended to facilitate the understanding of the method and its core concept of the invention.It should be pointed out that pair
For those skilled in the art, without departing from the principle of the present invention, the present invention can also be carried out
Some improvements and modifications, these improvement and modification are also fallen within the protection scope of the claims of the present invention.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (30)
1. a kind of nickel-base alloy, composed of the following components：
The cobalt of 7wt%~8wt%；
The chromium of 6.75wt%~7.25wt%；
The aluminium of 6.25wt%~6.55wt%；
The tantalum of 6.3wt%~6.7wt%；
The tungsten of 5.25wt%~6.75wt%；
The molybdenum of 0.3wt%~0.7wt%；
The hafnium of 0.12wt%~0.18wt%；
The rhenium of 2.35wt%~2.75wt%；
The carbon of 0.04wt%~0.06wt%；
The boron of 0.003wt%~0.005wt%；
The nickel of surplus.
2. nickel-base alloy according to claim 1, which is characterized in that the chromium including 6.9wt%~7.1wt%.
3. nickel-base alloy according to claim 1, which is characterized in that the tantalum including 6.45wt%~6.6wt%.
4. nickel-base alloy according to claim 1, which is characterized in that the rhenium including 2.4wt%~2.6wt%.
5. nickel-base alloy according to claim 1, which is characterized in that the hafnium including 0.13wt%~0.16wt%.
6. nickel-base alloy according to claim 1, which is characterized in that the molybdenum including 0.45wt%~0.6wt%.
7. nickel-base alloy according to claim 1, which is characterized in that the aluminium including 6.3wt%~6.5wt%.
8. a kind of nickel-base alloy, composed of the following components：
The cobalt of 7wt%~8wt%；
The chromium of 6.75wt%~7.25wt%；
The aluminium of 6.25wt%~6.55wt%；
The tantalum of 6.3wt%~6.7wt%；
The tungsten of 5.25wt%~5.75wt%；
The molybdenum of 0.3wt%~0.7wt%；
The hafnium of 0.12wt%~0.18wt%；
The rhenium of 2.35wt%~2.75wt%；
The carbon of 0.04wt%~0.06wt%；
The boron of 0.003wt%~0.005wt%；
The nickel of surplus.
9. nickel-base alloy according to claim 8, which is characterized in that the chromium including 6.9wt%~7.1wt%.
10. nickel-base alloy according to claim 8, which is characterized in that the tantalum including 6.45wt%~6.6wt%.
11. nickel-base alloy according to claim 8, which is characterized in that the rhenium including 2.4wt%~2.6wt%.
12. nickel-base alloy according to claim 8, which is characterized in that the hafnium including 0.13wt%~0.16wt%.
13. nickel-base alloy according to claim 8, which is characterized in that the molybdenum including 0.45wt%~0.6wt%.
14. nickel-base alloy according to claim 8, which is characterized in that the aluminium including 6.3wt%~6.5wt%.
15. nickel-base alloy according to claim 8, which is characterized in that the tungsten including 5.4wt%~5.6wt%.
16. a kind of nickel-base alloy, composed of the following components：
The cobalt of 7wt%~8wt%；
The chromium of 6.75wt%~7.25wt%；
The aluminium of 6.25wt%~6.55wt%；
The tantalum of 6.3wt%~6.7wt%；
The tungsten of 6.25wt%~6.75wt%；
The molybdenum of 0.3wt%~0.7wt%；
The hafnium of 0.12wt%~0.18wt%；
The rhenium of 2.35wt%~2.75wt%；
The carbon of 0.04wt%~0.06wt%；
The boron of 0.003wt%~0.005wt%；
The nickel of surplus.
17. nickel-base alloy according to claim 16, which is characterized in that the chromium including 6.9wt%~7.1wt%.
18. nickel-base alloy according to claim 16, which is characterized in that the tantalum including 6.45wt%~6.6wt%.
19. nickel-base alloy according to claim 16, which is characterized in that the rhenium including 2.4wt%~2.6wt%.
20. nickel-base alloy according to claim 16, which is characterized in that the hafnium including 0.13wt%~0.16wt%.
21. nickel-base alloy according to claim 16, which is characterized in that the molybdenum including 0.45wt%~0.6wt%.
22. nickel-base alloy according to claim 16, which is characterized in that the aluminium including 6.3wt%~6.5wt%.
23. nickel-base alloy according to claim 16, which is characterized in that the tungsten including 6.3wt%~6.6wt%.
24. a kind of nickel-base alloy, composed of the following components：
The cobalt of 7.5wt%；
The chromium of 7.0wt%；
The aluminium of 6.4wt%；
The tantalum of 6.5wt%；
The tungsten of 5.5wt%；
The molybdenum of 0.5wt%；
The hafnium of 0.15wt%；
The rhenium of 2.6wt%；
The carbon of 0.05wt%；
The boron of 0.004wt%；
The nickel of surplus.
25. a kind of nickel-base alloy, composed of the following components：
The cobalt of 7.5wt%；
The chromium of 7.0wt%；
The aluminium of 6.4wt%；
The tantalum of 6.5wt%；
The tungsten of 6.5wt%；
The molybdenum of 0.5wt%；
The hafnium of 0.15wt%；
The rhenium of 2.6wt%；
The carbon of 0.05wt%；
The boron of 0.004wt%；
The nickel of surplus.
26. a kind of manufacture article applied to gas engine hot passage parts is formed by the alloy including following element：
The cobalt of 7wt%~8wt%；
The chromium of 6.75wt%~7.25wt%；
The aluminium of 6.25wt%~6.55wt%；
The tantalum of 6.3wt%~6.7wt%；
The tungsten of 5.25wt%~6.75wt%；
The molybdenum of 0.3wt%~0.7wt%；
The hafnium of 0.12wt%~0.18wt%；
The rhenium of 2.35wt%~2.75wt%；
The carbon of 0.04wt%~0.06wt%；
The boron of 0.003wt%~0.005wt%；
The nickel of surplus.
27. a kind of manufacture article applied to gas engine hot passage parts is formed by the alloy including following element：
The cobalt of 7wt%~8wt%；
The chromium of 6.75wt%~7.25wt%；
The aluminium of 6.25wt%~6.55wt%；
The tantalum of 6.3wt%~6.7wt%；
The tungsten of 5.25wt%~5.75wt%；
The molybdenum of 0.3wt%~0.7wt%；
The hafnium of 0.12wt%~0.18wt%；
The rhenium of 2.35wt%~2.75wt%；
The carbon of 0.04wt%~0.06wt%；
The boron of 0.003wt%~0.005wt%；
The nickel of surplus.
28. a kind of manufacture article applied to gas engine hot passage parts is formed by the alloy including following element：
The cobalt of 7wt%~8wt%；
The chromium of 6.75wt%~7.25wt%；
The aluminium of 6.25wt%~6.55wt%；
The tantalum of 6.3wt%~6.7wt%；
The tungsten of 6.25wt%~6.75wt%；
The molybdenum of 0.3wt%~0.7wt%；
The hafnium of 0.12wt%~0.18wt%；
The rhenium of 2.35wt%~2.75wt%；
The carbon of 0.04wt%~0.06wt%；
The boron of 0.003wt%~0.005wt%；
The nickel of surplus.
29. a kind of manufacture article applied to gas engine hot passage parts is formed by the alloy including following element：
The cobalt of 7.5wt%；
The chromium of 7.0wt%；
The aluminium of 6.4wt%；
The tantalum of 6.5wt%；
The tungsten of 5.5wt%；
The molybdenum of 0.5wt%；
The hafnium of 0.15wt%；
The rhenium of 2.6wt%；
The carbon of 0.05wt%；
The boron of 0.004wt%；
The nickel of surplus.
30. a kind of manufacture article applied to gas engine hot passage parts is formed by the alloy including following element：
The cobalt of 7.5wt%；
The chromium of 7.0wt%；
The aluminium of 6.4wt%；
The tantalum of 6.5wt%；
The tungsten of 6.5wt%；
The molybdenum of 0.5wt%；
The hafnium of 0.15wt%；
The rhenium of 2.6wt%；
The carbon of 0.05wt%；
The boron of 0.004wt%；
The nickel of surplus.
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| CN201510187146.6A CN104745888A (en) | 2015-04-20 | 2015-04-20 | Nickel-base alloy and article formed by same |
| CN2015101871466 | 2015-04-20 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0194391A1 (en) * | 1985-03-13 | 1986-09-17 | General Electric Company | Yttrium and yttrium-silicon bearing nickel-base superalloys especially useful as compatible coatings for advanced superalloys |
| CN100355923C (en) * | 2003-03-24 | 2007-12-19 | 大同特殊钢株式会社 | Nickel base heat resistant cast alloy and turbine wheels made thereof |
| CN102076877A (en) * | 2008-06-26 | 2011-05-25 | 独立行政法人物质·材料研究机构 | Ni-based single crystal superalloy and alloy member using the same as base |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6454885B1 (en) * | 2000-12-15 | 2002-09-24 | Rolls-Royce Corporation | Nickel diffusion braze alloy and method for repair of superalloys |
-
2015
- 2015-04-20 CN CN201510187146.6A patent/CN104745888A/en active Pending
- 2015-06-02 CN CN201510296008.1A patent/CN106191530B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0194391A1 (en) * | 1985-03-13 | 1986-09-17 | General Electric Company | Yttrium and yttrium-silicon bearing nickel-base superalloys especially useful as compatible coatings for advanced superalloys |
| CN100355923C (en) * | 2003-03-24 | 2007-12-19 | 大同特殊钢株式会社 | Nickel base heat resistant cast alloy and turbine wheels made thereof |
| CN102076877A (en) * | 2008-06-26 | 2011-05-25 | 独立行政法人物质·材料研究机构 | Ni-based single crystal superalloy and alloy member using the same as base |
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