CN105838925A - Nickel-based alloy resistant to high temperature oxidation - Google Patents
Nickel-based alloy resistant to high temperature oxidation Download PDFInfo
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- CN105838925A CN105838925A CN201510012838.7A CN201510012838A CN105838925A CN 105838925 A CN105838925 A CN 105838925A CN 201510012838 A CN201510012838 A CN 201510012838A CN 105838925 A CN105838925 A CN 105838925A
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- 239000000956 alloy Substances 0.000 title claims abstract description 69
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 66
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 34
- 230000003647 oxidation Effects 0.000 title claims abstract description 32
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title abstract description 37
- 229910052759 nickel Inorganic materials 0.000 title abstract description 14
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 16
- 239000012535 impurity Substances 0.000 claims abstract description 13
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 13
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims description 26
- 229910052782 aluminium Inorganic materials 0.000 claims description 18
- 229910052804 chromium Inorganic materials 0.000 claims description 16
- 229910052726 zirconium Inorganic materials 0.000 claims description 13
- 229910052717 sulfur Inorganic materials 0.000 claims description 12
- 229910052748 manganese Inorganic materials 0.000 claims description 11
- 238000010891 electric arc Methods 0.000 abstract description 8
- 238000007670 refining Methods 0.000 abstract description 3
- 238000009776 industrial production Methods 0.000 abstract description 2
- 230000002045 lasting effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 27
- 239000011651 chromium Substances 0.000 description 17
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000003723 Smelting Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 229910000601 superalloy Inorganic materials 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000007774 longterm Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 241001062472 Stokellia anisodon Species 0.000 description 2
- 230000003026 anti-oxygenic effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- UOUJSJZBMCDAEU-UHFFFAOYSA-N chromium(3+);oxygen(2-) Chemical group [O-2].[O-2].[O-2].[Cr+3].[Cr+3] UOUJSJZBMCDAEU-UHFFFAOYSA-N 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000001997 corrosion-resisting alloy Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001293 incoloy Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 150000002927 oxygen compounds Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention discloses a nickel-based alloy resistant to high temperature oxidation. The alloy comprises components, by weight percentage, no more than 0.1% of C, 15-30% of Cr, 1.0-2.5% of Al, 0.01-1.0% of Ti, no more than 0.3% of Si, no more than 0.5% of Mn, 0.01-0.05% of Mg, 0.002-0.03% of B, 0.01-0.15% of Zr, 0.01-0.02% of N, no more than 0.010% of P, and no more than 0.010% of S, wherein P+S is no more than 0.015%, with the balance being Ni and inevitable impurities. The alloy can resist high temperature oxidation, and has excellent high-temperature-resistant lasting creep resistance. The alloy can be produced through adoption of an electric-arc furnace and refining and can meet requirements of industrial production to a high-temperature-resistant alloy material in large equipment.
Description
Technical field
The present invention relates to a kind of nickel-base alloy, more particularly, it relates to high temperature oxidation resisting nickel-base alloy.
Background technology
In nickel-base alloy, high temperature resistant, corrosion-resistant and simultaneously high-temp corrosion-resisting alloy as Ni-based conjunction
Three big main application fields of gold generally use different composition Design Mechanism, thus result in its manufacturer
Method is the most otherwise varied.For the nickel-base alloy of main high-temperature resistant medium, it is adaptable to petrochemical industry,
In the equipments such as metallurgy, high temperature furnace parts and the combustor of temperature 1200 DEG C generally individually use precipitation strength
Type high temperature alloy, in alloy, Cr, Al, Ti, Nb, W etc. containing different content form the strengthenings such as γ
To improve the element of high-temperature and durable creeping performance.But the subject matter of this kind of alloy has high temperature oxidation stability
Can be poor, temperature is low is less than 1100 DEG C in use, causes reduce service life, meanwhile, such alloy by
Need in the fabrication process to use vacuum drying oven to smelt in the general intensified element containing high level, be characterized in
Batch is little, and lumber recovery is low.The another kind of typical nickel-base alloy being applied to high-temperature medium holds strengthening nickel for solid
Base alloy, typical species includes Incoloy 800H etc., and its composition characteristic is a certain amount of for containing only
The resistance to oxidation elements such as Al, Ti, Cr, but its content relatively low Al+Ti 1.2wt% (percentage by weight),
Therefore it uses temperature general all below 800 DEG C.It addition, in the industrial production, there is a lot of equipment
Long-term operation in 1200 DEG C of temperatures above, such as industry annealing furnace, its military service feature is to use temperature
Height, production lot are big, longevity of service, replacing parts are difficult, the therefore high-temperature oxydation to material
Performance, high-temperature and durable creeping etc. propose the highest requirement, and meanwhile, such piece volumes causes more greatly
The size of the material such as steel plate needed is relatively big, therefore smelting ingot shape etc. also certainly will be proposed higher wanting
Ask, as used nickel-base alloy as above also to will result in difficulty in actual production.
In addition to conventional high temperature resistant nickel base alloy kind described above, prior art exists 5 kinds and is similar to
Use temperature high temperature resistant nickel base alloy (without containing cobalt and Powder Nickel-base) more than 1200 DEG C,
Its composition designs as shown in Figure 1.
It will be seen from figure 1 that the universal thinking of such design of alloy is to be added with certain content
Rare earth element, for improving the high-temperature behavior of material, meanwhile, in alloy design, another main aspect is
Being added with the Al (or Ti) of high level, Al+Ti, at more than wt4%, adds a certain amount of simultaneously
Cr puies forward heavy alloyed oxidation resistance.
In sum, existing high temperature resistant environment nickel-base alloy generally use temperature all 1100 DEG C with
Under, use temperature high temperature alloy more than 1200 DEG C to typically contain the alloying element of high level,
Cannot produce under the electric arc furnace refine smelting condition of Special Steel Enterprise batch production, meanwhile, industrial equipment
Development makes a lot of parts need higher service temperature, it addition, the trend that industrial equipment maximizes is the most right
The size of exotic material it is also proposed higher requirement, for the alloy containing high-load intensified element
Smelt and bring bigger difficulty.
Summary of the invention
The resistance to elevated temperatures that there is material for Chlorimet conventional present in prior art reaches
The problems such as Chlorimet performance less than using temperature conditions and conventional is the best, the present invention's
Purpose is to provide high temperature oxidation resisting nickel-base alloy.
For achieving the above object, the present invention adopts the following technical scheme that
A kind of high temperature oxidation resisting nickel-base alloy, the percentage by weight of its each composition is: C :≤0.1%,
Cr:15～30%, Al:1.0～2.5%, Ti:0.01～1.0%, Si :≤0.3%, Mn :≤
0.5%, Mg:0.01～0.05%, B:0.002～0.03%, Zr:0.01～0.15%, N:
0.01～0.02%, P≤0.010%, S≤0.010%, wherein, P+S≤0.015%, remaining is
Ni and inevitable impurity composition.
According to one embodiment of the invention, the concrete percentage by weight of its each composition is: C:0.02%,
Si:0.1%, Mn:0.2%, Cr:15%, Al:1.0%, Ti:1.0%, B:0.03%,
Zr:0.10%, P:0.01%, S:0.002%, N:0.01%, Mg:0.05%, remaining is
Ni and inevitable impurity composition.
According to one embodiment of the invention, the concrete percentage by weight of its each composition is: C:0.1%,
Si:0.2%, Mn:0.2%, Cr:20%, Al:2.0%, Ti:0.3%, B:0.02%,
Zr:0.10%, P:0.008%, S:0.01%, N:0.015%, Mg:0.03%, remaining is
Ni and inevitable impurity composition.
According to one embodiment of the invention, the concrete percentage by weight of its each composition is: C:0.05%,
Si:0.3%, Mn:0.5%, Cr:25%, Al:2.5%, Ti:0.2%, B:0.003%,
Zr:0.03%, P:0.008%, S:0.005%, N:0.02%, Mg:0.01%, remaining is
Ni and inevitable impurity composition.
According to one embodiment of the invention, the concrete percentage by weight of its each composition is: C:0.02%,
Si:0.3%, Mn:0.4%, Cr:22%, Al:2.3%, Ti:0.2%, B:0.002%,
Zr:0.02%, P:0.005%, S:0.002%, N:0.018%, Mg:0.02%, remaining
Form for Ni and inevitable impurity.
In technique scheme, the high temperature oxidation resisting nickel-base alloy of the present invention is capable of withstanding high-temperature oxydation,
Having the nickel base superalloy of good high temperature resistant durable creeping performance, the alloy of the present invention can be adopted simultaneously
Produced by the mode of electric arc furnace+refine, to meet commercial production to conjunction high temperature resistant in Large-Scale Equipment
The requirement of gold copper-base alloy.
Accompanying drawing explanation
Fig. 1 is the component list of multiple high temperature oxidation resisting nickel-base alloy in prior art；
Fig. 2 is multiple embodiments and the chemical composition contrast table of comparative alloy of the present invention；
Fig. 3 is multiple embodiments and the high temperature tensile properties comparison sheet of comparative alloy of the present invention；
Fig. 4 is multiple embodiments and the antioxygenic property contrast table of comparative alloy of the present invention；
Fig. 5 is multiple embodiments and the high temperature endurance performance comparison sheet of comparative alloy of the present invention.
Detailed description of the invention
Technical scheme is further illustrated below in conjunction with the accompanying drawings with embodiment.
The present invention relates to a kind of high temperature oxidation resisting, there is good high temperature resistant durable creeping performance simultaneously
The chemical composition of nickel base superalloy, by weight percentage, its chemical composition proportioning is:
C :≤0.1%, Cr:15～30%, Al:1.0～2.5%, Ti:0.01～1.0%, Si:
≤ 0.3%, Mn :≤0.5%, Mg:0.01～0.05%, B:0.002～0.03%, Zr:0.01～
0.15%, N:0.01～0.02%, P≤0.010%, S≤0.010%.Wherein, P+S≤0.015%,
Remaining is Ni and inevitable impurity composition.Remaining is Ni and inevitable impurity composition.
Each of nickel base superalloy of the present invention addressed below becomes component selections.
The matrix of alloy of the present invention be Ni, Ni be austenitizing formed basic element, it is at oxidation environment
In highly stable, add the Cr element of certain content, on the one hand Cr is in Ni-Cr austenite solid solution
Oxidation resistance and the resistance to combustion gas corrosion ability of material can be greatly improved, secondly, it is contemplated that invention alloy
In user's long term high temperature environment, the high temperature passivating film of Cr formation is highly stable improves the anti-of alloy surface
Oxidability, but Cr content is unsuitable too high, too high will affect drawing abillity, by alloy
Rollings etc. produce and cause difficulty, therefore control the content of Cr in 15%～30wt% (weight percent
Than) between.But when using temperature more than 1200 DEG C, particularly during long-term cold cycling, by right
The chromium oxide structure that alloy surface is formed damages, thus the oxidation that accelerated material is under the high temperature conditions,
Material failure may can complete at short notice, with the addition of certain content Al element the most in the alloy,
Add Al can under the high temperature conditions alloy surface formed one layer of fine and close Al oxide, this layer of oxygen
Compound can stop oxygen to matrix internal diffusion, thus improves the stability of Cr and Al oxide structure,
Put forward heavy alloyed oxidation resistance further.But the addition of Al element can not be the highest, on the one hand, by
In Al improve to 2.5wt% time, the plasticity of material will drastically reduce, will affect material in production process
In crystallized ability, on the other hand, Al improves and will bring difficulty to when smelting particularly refine, should
For in arc furnace smelting procedure, the control ability of N is limited, and the affinity of Al and N is relatively strong, in smelting
The nitride inclusion that refining process is unavoidably formed affects the degree of purity of alloy, and follow-up use is existed shadow
Ring, therefore the content of Al is controlled in the range of 1.0～2.5wt%.
C in alloy is prone to the element formation carbides such as Cr, Al affects the non-oxidizability of material, therefore
Control at below 0.1wt%.Add appropriate Ti and can improve the solid appearance strengthening effect of material, improve and close
The intensity of gold, certainly will improve material intensity under the high temperature conditions, and meanwhile, Ti is stabilizing element,
Add appropriate Ti and can improve the Weld Performance after welding by suitable heat treatment.But the addition of Ti
Too high, affect oxidation resistance and the weldability of material, therefore control its content 0.01～1.0wt%
Between.Alloy adds a certain amount of Si, it is possible to formation resistance to high temperature oxidation layer similar with Al, but its effect
Al to be much smaller than, but Si interpolation excess will make materials hot working and oxidation resistance drastically decline, simultaneously
It is also possible to form high temperature precipitated phase in the alloy and affects the combination property of material, in the present invention, only make
For trace element control.
The interpolation of Mg, Zr, B can put forward heavy alloyed elevated temperature strength, and this dvielement typically exists in the alloy
Crystal boundary and interdendritic are assembled, the appropriate elevated temperature strength coordinating interpolation to be remarkably improved material, meanwhile,
The interpolation of this dvielement can improve the inclusion morphology in alloy, improves material entirety high temperature oxidation resisting energy
Also can improve the stability of superficial oxidation layer while power, improve material oxygen under dynamic oxidation environment
Change ability, but this dvielement will result in material plasticity and toughness rapid decrease as added excess, affects material
Processing characteristics, therefore in the present invention, its interpolation principle is: Mg:0.01～0.05%；B:0.002～
0.03%；Zr:0.01～0.15%.
Due to the mode melting of alloy material electric arc furnace+refine of the present invention, although the intensity of material is carried by N
Height has superiority but considers to contain in alloy Al, Ti of high level, is easily formed brittle inclusion, therefore controls
Make its content between 0.01～0.02%.Meanwhile, the thermoplasticity of high temperature alloy is impacted by P, S,
Therefore control its content and be respectively less than 0.01wt%.
The nickel base superalloy of the present invention can use the mode of electric arc furnace+AOD refine to produce, then warp
Become ingot after electroslag remelting, be thermally processed into sheet material, forging etc. by modes such as forging, rollings.
Feature of the present invention:
1. by adding the element raising alloy substrates such as appropriate Al, Cr and at high temperature life-time service bar
Oxidation resistance under part, can meet temperature requirement of life-time service at 1200 DEG C.
2. the element such as Mg, B, Zr adding trace improves elevated temperature strength and the high-temperature and durable creeping of material
Performance, is greatly improved the material recycling performance in Long-term Service under High Temperature condition.
3. being designed by suitable composition, alloy of the present invention can use the mode smelting of Recent Development for Large Scale Electric Arc+refine
Refining, is improving lumber recovery, is saving while production cost the also supply of material to large-sized nickel base alloy material
Ability has positive practical significance.
Below by the nickel base superalloy selecting concrete composition to form the present invention, and through contrast
Test illustrates the feature of nickel base superalloy of the present invention.
Fig. 2 show multiple embodiments of the present invention and the chemical composition contrast table of comparative alloy, wherein
A1～A4 is the present invention, for ease of comparing the effect of the present invention, chooses the resistance to of two kinds of conventional component system
High-temperature nickel-base alloy B1, B2 carry out reference as a comparison case.In fig. 2, Ni is surplus, examination
Test steel plate thickness and be 20mm.
A1～A4, B1 all use electric arc furnace smelting+AOD refine, hammer cogging after electroslag remelting,
Carrying out high-temperature behavior comparison and detection after admittedly holding heat treatment being rolled into steel plate, B2 uses vacuum+electroslag
Detect after being rolled into steel plate after becoming ingot, more forged cogging.
As shown in Fig. 3, Fig. 4, Fig. 5, respectively to test and compare the steel plate of alloy and carry out performance detection,
Item compared is high temperature tensile properties, antioxygenic property and high temperature endurance performance.From Fig. 3, Fig. 4, figure
The contrast of 5 is not it can be seen that alloy of the present invention and comparative alloy have substantially on high temperature tensile properties
Gap, but on high temperature oxidation resistance, alloy of the present invention still has preferable resistance to height on 1200 DEG C
Temperature oxidation susceptibility, on high temperature endurance performance, alloy of the present invention is suitable with B2, but relatively B1 has substantially
Advantage.
Alloy of the present invention has excellent high temperature oxidation resisting and persistently due to its more existing Chlorimet
Croop property, and realize ingot processed by electric arc furnace+refine, more existing high performance heat resistant is Ni-based
Alloy lumber recovery on producing is greatly improved, simultaneously, it is possible to decrease production cost improves production efficiency,
And it is provided that big specification material.Its successful design exploitation application to domestic high-performance special alloy
Huge Social and economic benef@will be brought.
Those of ordinary skill in the art is it should be appreciated that above embodiment is intended merely to
The bright present invention, and it is not used as limitation of the invention, as long as at the spirit of the present invention
In, change, the modification of embodiment described above all will be fallen in the range of claims of the present invention.
Claims (5)
1. a high temperature oxidation resisting nickel-base alloy, it is characterised in that the percentage by weight of its each composition
For:
C :≤0.1%, Cr:15～30%, Al:1.0～2.5%, Ti:0.01～1.0%, Si:
≤ 0.3%, Mn :≤0.5%, Mg:0.01～0.05%, B:0.002～0.03%, Zr:0.01～
0.15%, N:0.01～0.02%, P≤0.010%, S≤0.010%；
Wherein, P+S≤0.015%；
Remaining is Ni and inevitable impurity composition.
2. high temperature oxidation resisting nickel-base alloy as claimed in claim 1, it is characterised in that its each become
The percentage by weight divided is:
C:0.02%, Si:0.1%, Mn:0.2%, Cr:15%, Al:1.0%, Ti:1.0%,
B:0.03%, Zr:0.10%, P:0.01%, S:0.002%, N:0.01%, Mg:0.05%；
Remaining is Ni and inevitable impurity composition.
3. high temperature oxidation resisting nickel-base alloy as claimed in claim 1, it is characterised in that its each become
The percentage by weight divided is:
C:0.1%, Si:0.2%, Mn:0.2%, Cr:20%, Al:2.0%, Ti:0.3%,
B:0.02%, Zr:0.10%, P:0.008%, S:0.01%, N:0.015%, Mg:0.03%；
Remaining is Ni and inevitable impurity composition.
4. high temperature oxidation resisting nickel-base alloy as claimed in claim 1, it is characterised in that its each become
The percentage by weight divided is:
C:0.05%, Si:0.3%, Mn:0.5%, Cr:25%, Al:2.5%, Ti:0.2%,
B:0.003%, Zr:0.03%, P:0.008%, S:0.005%, N:0.02%, Mg:
0.01%；
Remaining is Ni and inevitable impurity composition.
5. high temperature oxidation resisting nickel-base alloy as claimed in claim 1, it is characterised in that its each become
The percentage by weight divided is:
C:0.02%, Si:0.3%, Mn:0.4%, Cr:22%, Al:2.3%, Ti:0.2%,
B:0.002%, Zr:0.02%, P:0.005%, S:0.002%, N:0.018%, Mg:
0.02%；
Remaining is Ni and inevitable impurity composition.
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| CN107243604A (en) * | 2017-06-28 | 2017-10-13 | 安徽华飞机械铸锻有限公司 | A kind of metal mould cast method |
| WO2021046929A1 (en) * | 2019-09-12 | 2021-03-18 | 南京达迈科技实业有限公司 | Large-diameter ni-cr rotating target containing trace elements and preparation method therefor |
| CN116121598A (en) * | 2022-12-26 | 2023-05-16 | 北京钢研高纳科技股份有限公司 | Aging-strengthened superalloy powder for 3D printing and its preparation method and application |
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| WO2021046929A1 (en) * | 2019-09-12 | 2021-03-18 | 南京达迈科技实业有限公司 | Large-diameter ni-cr rotating target containing trace elements and preparation method therefor |
| CN116121598A (en) * | 2022-12-26 | 2023-05-16 | 北京钢研高纳科技股份有限公司 | Aging-strengthened superalloy powder for 3D printing and its preparation method and application |
| CN116121598B (en) * | 2022-12-26 | 2025-01-28 | 北京钢研高纳科技股份有限公司 | Age-hardened high-temperature alloy powder for 3D printing and its preparation method and application |
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