CN114934312A - Device and method for manufacturing high-throughput sample and gradient functional material - Google Patents
Device and method for manufacturing high-throughput sample and gradient functional material Download PDFInfo
- Publication number
- CN114934312A CN114934312A CN202210539125.6A CN202210539125A CN114934312A CN 114934312 A CN114934312 A CN 114934312A CN 202210539125 A CN202210539125 A CN 202210539125A CN 114934312 A CN114934312 A CN 114934312A
- Authority
- CN
- China
- Prior art keywords
- temperature
- powder
- resistant
- formwork
- vacuum
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000013078 crystal Substances 0.000 claims abstract description 66
- 239000000843 powder Substances 0.000 claims description 80
- 229910045601 alloy Inorganic materials 0.000 claims description 53
- 239000000956 alloy Substances 0.000 claims description 53
- 238000003860 storage Methods 0.000 claims description 41
- 238000009415 formwork Methods 0.000 claims description 38
- 230000006698 induction Effects 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 7
- 238000007711 solidification Methods 0.000 claims description 7
- 230000008023 solidification Effects 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- 239000008204 material by function Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 17
- 229910000601 superalloy Inorganic materials 0.000 abstract description 16
- 238000009826 distribution Methods 0.000 abstract description 10
- 238000002360 preparation method Methods 0.000 abstract description 9
- 229910052759 nickel Inorganic materials 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 6
- 239000007769 metal material Substances 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 description 10
- 239000000203 mixture Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000009416 shuttering Methods 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000000427 thin-film deposition Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000007418 data mining Methods 0.000 description 1
- 238000010353 genetic engineering Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
- C30B11/04—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method adding crystallising materials or reactants forming it in situ to the melt
- C30B11/08—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method adding crystallising materials or reactants forming it in situ to the melt every component of the crystal composition being added during the crystallisation
- C30B11/10—Solid or liquid components, e.g. Verneuil method
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
- C30B11/001—Continuous growth
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
- C30B11/006—Controlling or regulating
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/10—Inorganic compounds or compositions
- C30B29/52—Alloys
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
The invention discloses a device and a method for manufacturing a high-throughput sample and a gradient functional material, and belongs to the technical field of metal material preparation. Particularly, the preparation method of the nickel-based single crystal superalloy sample with continuously adjustable chemical component spatial distribution can realize the component gradient distribution of the nickel-based single crystal sample and the gradient functional material, and can realize millimeter-sized and centimeter-sized component gradient change at different positions in the same sample or component.
Description
Technical Field
The invention belongs to the technical field of metal material preparation, and particularly relates to a device and a method for manufacturing a high-throughput sample and a gradient functional material.
Background
In an aircraft engine, a high-pressure turbine blade is positioned at the front end of a turbine, the working temperature is close to 1100 ℃, and the high-pressure turbine blade rotates at a high speed, so that a preparation material of the high-pressure turbine blade has good surface resistance such as oxidation resistance, hot corrosion resistance and the like, and good comprehensive high-temperature mechanical properties such as impact toughness, fatigue resistance, creep resistance and the like. Under such severe service conditions, nickel-based single crystal superalloys are currently the material of choice for the production of high pressure turbine blades.
Through development of nearly half a century, the nickel-based single crystal high-temperature alloy has continuously optimized components and continuously improved comprehensive performance, and becomes a preferred material for preparing the high-pressure turbine working blade of the aeroengine. However, with the continuous improvement of the performance requirements of the single crystal superalloy, the component design space of the single crystal superalloy becomes narrower and narrower, and the traditional trial-and-error method is adopted, so that the cost is high, the period is long, and the difficulty is high.
In order to accelerate the development of important Materials such as single crystal superalloys, the united states announces and starts a material Genome project facing Global Competitiveness (material Genome Initiative for Global Competitiveness, referred to as material Genome project) in 2011, and aims to shorten the development period of Materials from discovery to application and reduce the cost by means of technologies such as high-throughput experiments, high-throughput calculation, material data analysis and mining and the like. The core of the material genetic engineering is data, and high-throughput experiments can provide massive and reliable experimental data. The high-throughput experiment refers to obtaining a plurality of information such as components, structures and properties of a sample through one-time experiment, so that how to design a high-throughput sample with the characteristics of the single crystal superalloy is the key to acquiring basic experiment data of the single crystal superalloy and accelerating the design of the single crystal superalloy.
In addition, in the actual service process, different positions of the single crystal blade material bear different thermal loads and corrosion environments, so that different design requirements on corrosion resistance, impact resistance, fatigue resistance, mechanical strength and the like need to be met. Therefore, the component manufacturing method with the internal component changing is designed, the gradient functional material is obtained, the performance requirements of the same component at different positions are met, and the problem of acceleration failure caused by uneven distribution of the temperature and stress of the turbine blade can be effectively solved.
Currently, the manufacturing of high-throughput samples mainly includes multi-target thin film deposition technology, metal powder additive manufacturing technology, diffusion multi-node technology, and the like. However, the multi-target thin film deposition technology can only prepare thin layer materials of about 100 nm; due to continuous stirring of a molten pool and different quality of metal powder, the composition gradient of the alloy prepared by additive manufacturing often has local irregular fluctuation; the effective interdiffusion distance of the diffusion polylines is approximately 1.5 mm. The above method is difficult to prepare a large-sized high-throughput sample or a gradient functional material having single crystal characteristics.
In the patent of "a high throughput single crystal growth apparatus" (patent No. 202010054648.2), there is described a high throughput single crystal automatic growth apparatus capable of simultaneously growing single crystals of 11 samples having close melting points. The method can prepare a plurality of discrete single crystal samples at the same time, but can not prepare high-flux single crystal samples with gradient components and single crystal gradient functional materials.
In the patent of 'a preparation method of a nickel-based single crystal superalloy test bar with chemical components in continuous gradient distribution' (patent number: ZL 201811079655.7), two combined alloys are completely melted through a directional solidification process, and are mixed with each other by convection or diffusion, so that the preparation of a nickel-based single crystal sample with centimeter-level component gradient distribution is realized, and the requirements of research on macroscopic mechanical properties such as durability, creep deformation and the like can be met. However, this method has difficulty in achieving precise control of composition at different locations, and in manufacturing single crystal superalloy components having both complex structures and compositional gradients.
Disclosure of Invention
Problems to be solved
Aiming at the problems in the prior art, the invention discloses a preparation method of a nickel-based single crystal superalloy sample with continuously adjustable chemical component spatial distribution, which can realize the component gradient distribution of a nickel-based single crystal sample and a gradient functional material, and can realize millimeter-scale and centimeter-scale component gradient change at different positions in the same sample or component.
Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
The device for manufacturing the high-throughput sample and the gradient functional material comprises a storage device, a high-temperature-resistant formwork, a lifting assembly and a vacuum device;
the storage device is connected with the high-temperature-resistant formwork, the lifting assembly is connected with the high-temperature-resistant formwork and used for lifting the high-temperature-resistant formwork, and the storage device, the high-temperature-resistant formwork and the lifting assembly are all arranged in the vacuum device.
In the above-described apparatus for manufacturing a high throughput sample and a gradient functional material,
the storage device comprises a powder storage device, a powder pipeline and a dynamic flow rate control valve, wherein the powder storage device, the powder pipeline and the dynamic flow rate control valve are connected, one end of the powder pipeline is connected with the powder storage device, the other end of the powder pipeline is connected with the high-temperature-resistant formwork, and the dynamic flow rate control valve is used for controlling the speed of powder in the powder pipeline.
In the above-described apparatus for manufacturing a high throughput sample and a gradient functional material,
the powder discharging device is characterized by further comprising a master control computer loaded with a Programmable Logic Controller (PLC), the master control computer is connected with the dynamic flow rate control valve, and the master control computer adjusts the powder discharging speeds of different powder storages by controlling the dynamic flow rate control valve.
In the above-described apparatus for manufacturing a high throughput sample and a gradient functional material,
the high-temperature resistant formwork is used for bearing a formwork of a solution and a raw material;
the high-temperature resistant formwork is made of ceramic materials.
In the above-described apparatus for manufacturing a high throughput sample and a gradient functional material,
the outer surface of the high-temperature-resistant formwork is wrapped with a heat insulation sleeve, and the heat insulation sleeve is used for reducing heat dissipation perpendicular to the drawing direction of the high-temperature-resistant formwork.
In the above-described apparatus for manufacturing a high throughput sample and gradient functional material,
the high-temperature-resistant formwork is wound with an induction coil, and the induction coil is connected with external current.
In the above-described apparatus for manufacturing a high throughput sample and a gradient functional material,
the bottom of the high-temperature resistant mould shell is provided with a monocrystalline alloy seed crystal; the single crystal alloy seed crystal is made of single crystal high temperature alloy;
the bottom of the single crystal alloy seed crystal is provided with a mould shell base plate and a water-cooling plate, and the water-cooling plate is connected with the mould shell base plate.
In the above-described apparatus for manufacturing a high throughput sample and a gradient functional material,
the vacuum device comprises a vacuum chamber, a vacuum gauge and a vacuum pump assembly, wherein the vacuum pump assembly is communicated with the vacuum chamber, and the vacuum gauge is arranged on a pipeline between the vacuum chamber and the vacuum pump assembly.
In the above-described apparatus for manufacturing a high throughput sample and gradient functional material,
the main control computer is also used for controlling a stepping motor of the lifting assembly to adjust the descending speed and the drawing speed of the water cooling disc.
A method of making a high throughput sample and gradient functional material comprising the steps of:
preparing at least two high-temperature alloy powders with different components;
respectively placing the high-temperature alloy powder with different components into powder storage devices of different storage devices;
preparing a high-temperature-resistant mould shell, coating the mould shell by using a heat-insulating sleeve, placing single crystal alloy seed crystals at the bottom of the mould shell, and fixing the single crystal alloy seed crystals inside the induction coil and in a mould shell base plate;
sealing the vacuum bin, and utilizing a vacuum pump assembly to extract air in the vacuum bin to maintain the vacuum degree in the furnace below 1 Pa;
presetting the flow rate of a powder storage on a master control computer, and introducing high-temperature alloy powder into a high-temperature-resistant mould shell through a funnel-shaped feeder;
after the high-temperature alloy powder enters the high-temperature resistant mold shell, starting an induction coil for heating, and melting the high-temperature alloy powder in the high-temperature resistant mold shell;
after the high-temperature alloy powder begins to melt, the main control computer is used for controlling the descending of the high-temperature resistant mold shell and a water cooling disc of the mold shell base plate, and the drawing speed of the directional solidification is controlled by cooperating with the feeding speed.
Has the beneficial effects of
Compared with the prior art, the invention has the beneficial effects that:
the device comprises a storage device, a high-temperature-resistant formwork, a lifting assembly and a vacuum device; the storage device is connected with the high-temperature-resistant formwork, the lifting assembly is connected with the high-temperature-resistant formwork and used for lifting the high-temperature-resistant formwork, and the storage device, the high-temperature-resistant formwork and the lifting assembly are all arranged in the vacuum device;
for the method, at least two or more high temperature alloy powders having different compositions are prepared; respectively placing the high-temperature alloy powder with different components into powder storage devices of different storage devices; preparing a high-temperature-resistant mould shell, coating the mould shell by using a heat-insulating sleeve, placing a single crystal alloy seed crystal at the bottom of the mould shell, and fixing the single crystal alloy seed crystal inside the induction coil and in a mould shell base plate; sealing the vacuum bin, and utilizing a vacuum pump assembly to extract air in the vacuum bin to maintain the vacuum degree in the furnace below 1 Pa; presetting the flow rate of a powder storage on a master control computer, and introducing high-temperature alloy powder into a high-temperature-resistant mould shell through a funnel-shaped feeder; after the high-temperature alloy powder enters the high-temperature resistant mold shell, starting an induction coil for heating, and melting the high-temperature alloy powder in the high-temperature resistant mold shell; after the high-temperature alloy powder begins to melt, a master control computer is used for controlling the descending of a high-temperature-resistant mould shell and a water-cooling disc of a mould shell chassis, and the drawing speed of directional solidification is controlled in cooperation with the feeding speed;
in general, the components at different positions can be accurately regulated and controlled in a controllable material distribution mode; meanwhile, a single crystal superalloy component with a complex structure and a gradient function can be manufactured.
Drawings
FIG. 1 is a diagram of a technical apparatus for manufacturing high throughput samples and gradient functional materials in the present invention;
FIG. 2 is a graph of the distribution characteristics of a high throughput single crystal superalloy sample and its constituents in accordance with the present invention;
FIG. 3 is a diagram of the distribution characteristics of a single crystal superalloy blade with a gradient function and its components according to the present invention.
In the figure: 1. a storage device; 2. a master control computer; 3. a high temperature resistant mold shell; 4. a thermal insulation sleeve; 5. an induction coil; 6. a single crystal alloy seed crystal; 7. a formwork base plate; 8. a water-cooled disc; 9. a lifting assembly; 10. a vacuum bin; 11. a vacuum gauge; 12. a vacuum pump assembly.
Detailed Description
The invention is further described with reference to specific examples.
As shown in FIG. 1, an apparatus for manufacturing high throughput sample and gradient functional material comprises a storage device 1, a high temperature resistant mold shell 3, a lifting assembly 9 and a vacuum device;
the storage device 1 is connected with the high-temperature-resistant formwork 3, the lifting assembly 9 is used for lifting the high-temperature-resistant formwork 3, and the storage device 1, the high-temperature-resistant formwork 3 and the lifting assembly 9 are all arranged in the vacuum device.
In the above-described apparatus for manufacturing a high throughput sample and a gradient functional material,
the storage device 1 comprises a powder storage device, a powder pipeline and a dynamic flow rate control valve, wherein the powder storage device, the powder pipeline and the dynamic flow rate control valve are connected, one end of the powder pipeline is connected with the powder storage device, the other end of the powder pipeline is connected with the high-temperature-resistant formwork 3, and the dynamic flow rate control valve is used for controlling the speed of powder in the powder pipeline.
In the above-described apparatus for manufacturing a high throughput sample and a gradient functional material,
the powder discharging device is characterized by further comprising a master control computer 2 loaded with a Programmable Logic Controller (PLC), wherein the master control computer 2 is connected with the dynamic flow rate control valve, and the master control computer 2 adjusts the powder discharging speeds of different powder storages by controlling the dynamic flow rate control valve.
In the above-described apparatus for manufacturing a high throughput sample and a gradient functional material,
the high temperature resistant shuttering 3 is used for bearing a solvent and a shuttering of a raw material;
the high temperature resistant shuttering 3 is made of ceramic material.
In the above-described apparatus for manufacturing a high throughput sample and a gradient functional material,
the outer surface of the high-temperature resistant formwork 3 is wrapped with a heat insulation sleeve 4, and the heat insulation sleeve 4 is used for reducing heat dissipation perpendicular to the drawing direction of the high-temperature resistant formwork 3.
In the above-described apparatus for manufacturing a high throughput sample and a gradient functional material,
an induction coil 5 is wound on the high-temperature resistant formwork 3, and the induction coil 5 is connected with external current.
In the above-described apparatus for manufacturing a high throughput sample and a gradient functional material,
a single crystal alloy seed crystal 6 is arranged at the bottom of the high temperature resistant mould shell 3; the single crystal alloy seed crystal 6 is made of single crystal high temperature alloy;
the bottom of the single crystal alloy seed crystal 6 is provided with a mould shell base plate 7 and a water-cooling disc 8, and the water-cooling disc 8 is connected with the mould shell base plate 7.
In the above-described apparatus for manufacturing a high throughput sample and a gradient functional material,
the vacuum device comprises a vacuum chamber 10, a vacuum gauge 11 and a vacuum pump assembly 12, wherein the vacuum pump assembly 12 is communicated with the vacuum chamber 10, and the vacuum gauge 11 is arranged on a pipeline between the vacuum chamber 10 and the vacuum pump assembly 12.
In the above-described apparatus for manufacturing a high throughput sample and a gradient functional material,
the main control computer is also used for controlling a stepping motor of the lifting assembly 9 to adjust the descending speed and the drawing speed of the water cooling disc 8.
A method of manufacturing a high throughput sample and gradient functional material comprising the steps of:
preparing at least two high-temperature alloy powders with different components;
respectively placing the high-temperature alloy powder with different components into powder storage devices of different storage devices 1;
preparing a high-temperature-resistant mould shell 3, coating the high-temperature-resistant mould shell by using a heat-insulating sleeve 4, placing a single crystal alloy seed crystal 6 at the bottom of the high-temperature-resistant mould shell, and fixing the single crystal alloy seed crystal in an induction coil 5 and a mould shell base plate 7;
sealing the vacuum chamber 10, and utilizing a vacuum pump assembly 12 to extract air in the vacuum chamber 10 to maintain the vacuum degree in the furnace below 1 Pa;
presetting the flow rate of a powder storage on a master control computer 2, and introducing high-temperature alloy powder into a high-temperature-resistant mould shell 3 through a funnel-shaped feeder;
after the high-temperature alloy powder enters the high-temperature resistant mold shell 3, the induction coil 5 is started to heat, and the high-temperature alloy powder in the high-temperature resistant mold shell 3 is melted;
after the high-temperature alloy powder begins to melt, the master control computer 2 is used for controlling the descending of the high-temperature resistant mold shell 3 and the water cooling disc 8 of the mold shell base plate 7, and the drawing speed of the directional solidification is controlled in cooperation with the feeding speed.
Example 1: two chemically different alloy powders were prepared, with the following chemical composition (mass fraction, wt.%):
| alloy (I) | Cr | Co | Mo | W | Al | Ti | Ta | | Re | Ni | |
| ① | 6.0 | 10.0 | 0.6 | 9.0 | 5.7 | 0.8 | 9.0 | 0.1 | 0.0 | |
|
| ② | 6.0 | 10.0 | 0.6 | 9.0 | 5.7 | 0.8 | 9.0 | 0.1 | 3.0 | Surplus |
Combining the first powder and the second powder as shown in FIG. 2The powder is not placed in a corresponding storage tank, the flow rates of the two kinds of powder are adjusted by utilizing a PLC (programmable logic controller), when the flow rate of the powder is changed from 0-400 mm3/min, the flow rate is changed from 400-0 mm 3 The flow rate of the powder is changed, and the total flow rate of the powder is maintained to be 400 mm 3/min. Controlling the drawing speed of the directional solidification to be 5 mm/min, finally preparing a single crystal superalloy test bar with the diameter of 10mm and the length of 100mm, and forming composition gradient change of Re element along the solidification direction in the sample.
Example 2: with reference to fig. 3, based on the preparation method of the gradient functional material, three kinds of alloy powders with different chemical compositions are prepared according to a single crystal superalloy blade preparation mold shell, and the chemical compositions (mass fraction, wt.%) are as follows, so that the blade root, the blade body and the blade shroud part of the blade have different compositions and properties by adjusting the inflow of the powders: the temperature born by the tip shroud part is the highest, and the higher content of Cr ensures that the tip shroud part has better high-temperature oxidation resistance; the deep part of the leaf bears complex stress conditions, and has excellent creep resistance and fatigue resistance due to the high content of Re, Ta and other refractory elements; the blade root part is contacted with the turbine disc, the use temperature is the lowest, and the alloy component with lower refractory element content and higher Cr content can be adopted, so that the alloy density and the manufacturing cost are reduced, and the blade root part has excellent oxidation resistance.
While the invention has been described in further detail in connection with specific embodiments thereof, it will be understood that the invention is not limited thereto, and that various other modifications and substitutions may be made by those skilled in the art without departing from the spirit of the invention, which should be considered to be within the scope of the invention as defined by the appended claims.
Claims (10)
1. An apparatus for manufacturing high throughput samples and gradient functional materials, comprising:
comprises a storage device (1), a high-temperature resistant formwork (3), a lifting component (9) and a vacuum device;
the storage device (1) is connected with the high-temperature-resistant formwork (3), the lifting assembly (9) is used for lifting the high-temperature-resistant formwork (3), and the storage device (1), the high-temperature-resistant formwork (3) and the lifting assembly (9) are all arranged in the vacuum device.
2. The apparatus for manufacturing high throughput sample and gradient functional material according to claim 1, wherein:
the storage device (1) comprises a powder storage device, a powder pipeline and a dynamic flow rate control valve, wherein the powder storage device, the powder pipeline and the dynamic flow rate control valve are connected, one end of the powder pipeline is connected with the powder storage device, the other end of the powder pipeline is connected with the high-temperature-resistant formwork (3), and the dynamic flow rate control valve is used for controlling the speed of powder in the powder pipeline.
3. The apparatus for manufacturing high throughput sample and gradient functional material according to claim 2, wherein:
the powder discharging device is characterized by further comprising a master control computer (2) loaded with a Programmable Logic Controller (PLC), wherein the master control computer (2) is connected with the dynamic flow rate control valve, and the master control computer (2) adjusts the powder discharging speeds of different powder storages by controlling the dynamic flow rate control valve.
4. The apparatus for manufacturing high throughput sample and gradient functional material according to claim 1, wherein:
the high-temperature resistant formwork (3) is used for bearing a formwork of a solution and a raw material;
the high-temperature-resistant formwork (3) is made of ceramic materials.
5. The apparatus for manufacturing high throughput sample and gradient functional material according to claim 4, wherein:
the outer surface of the high-temperature-resistant formwork (3) is wrapped with a heat insulation sleeve (4), and the heat insulation sleeve (4) is used for reducing the heat dissipation perpendicular to the drawing direction of the high-temperature-resistant formwork (3).
6. The apparatus for manufacturing high throughput samples and gradient functional materials of claim 5, wherein:
an induction coil (5) is wound on the high-temperature resistant formwork (3), and the induction coil (5) is connected with external current.
7. The apparatus for manufacturing high throughput samples and gradient functional materials of claim 6, wherein:
a single crystal alloy seed crystal (6) is arranged at the bottom of the high temperature resistant mould shell (3); the single crystal alloy seed crystal (6) is made of single crystal high-temperature alloy;
the bottom of the single crystal alloy seed crystal (6) is provided with a mould shell base plate (7) and a water-cooling disc (8), and the water-cooling disc (8) is connected with the mould shell base plate (7).
8. The apparatus for manufacturing high throughput sample and gradient functional material according to claim 7, wherein:
the vacuum device comprises a vacuum bin (10), a vacuum gauge (11) and a vacuum pump assembly (12), wherein the vacuum pump assembly (12) is communicated with the vacuum bin (10), and the vacuum gauge (11) is arranged on a pipeline between the vacuum bin (10) and the vacuum pump assembly (12).
9. The apparatus for manufacturing high throughput samples and gradient functional materials of claim 8, wherein:
the main control computer is also used for controlling a stepping motor of the lifting assembly (9) to adjust the descending speed and the drawing speed of the water cooling disc (8).
10. A method for manufacturing high-throughput sample and gradient functional material,
the method comprises the following steps:
preparing at least two high-temperature alloy powders with different components;
respectively placing the high-temperature alloy powder with different components into powder storage devices of different storage devices (1);
preparing a high-temperature-resistant mould shell (3), coating the high-temperature-resistant mould shell by using a heat-insulating sleeve (4), placing a single crystal alloy seed crystal (6) at the bottom of the high-temperature-resistant mould shell, and fixing the single crystal alloy seed crystal inside an induction coil (5) and in a mould shell base plate (7);
sealing the vacuum chamber (10), extracting air in the vacuum chamber (10) by using a vacuum pump assembly (12), and maintaining the vacuum degree in the furnace below 1 Pa;
presetting the flow rate of a powder storage on a master control computer (2), and introducing high-temperature alloy powder into a high-temperature-resistant mould shell (3) through a funnel-shaped feeder;
after the high-temperature alloy powder enters the high-temperature resistant mold shell (3), starting the induction coil (5) for heating, and melting the high-temperature alloy powder in the high-temperature resistant mold shell (3);
after the high-temperature alloy powder begins to melt, the master control computer (2) is used for controlling the descending of the water cooling disc (8) of the high-temperature resistant formwork (3) and the formwork base plate (7) and controlling the drawing speed of directional solidification in cooperation with the feeding speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210539125.6A CN114934312A (en) | 2022-05-18 | 2022-05-18 | Device and method for manufacturing high-throughput sample and gradient functional material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210539125.6A CN114934312A (en) | 2022-05-18 | 2022-05-18 | Device and method for manufacturing high-throughput sample and gradient functional material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114934312A true CN114934312A (en) | 2022-08-23 |
Family
ID=82864246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210539125.6A Pending CN114934312A (en) | 2022-05-18 | 2022-05-18 | Device and method for manufacturing high-throughput sample and gradient functional material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114934312A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118425208A (en) * | 2024-07-02 | 2024-08-02 | 东北大学 | Neutron in-situ diagnosis system and method for directional solidification process of single crystal superalloy |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4307769A (en) * | 1978-12-29 | 1981-12-29 | Office National D'etudes Et De Recherches Aerospatiales (O.N.E.R.A.) | Method and an apparatus for manufacturing metallic composite material bars by unidirectional solidification |
| CN105954074A (en) * | 2016-04-26 | 2016-09-21 | 北京科技大学 | Device for high-throughput preparation of multi-component gradient metal materials |
| CN109082710A (en) * | 2018-09-17 | 2018-12-25 | 中国科学院金属研究所 | A kind of preparation method of the nickel-base high-temperature single crystal alloy coupon of chemical component continuous gradient distribution |
| CN111254484A (en) * | 2020-01-17 | 2020-06-09 | 曲靖师范学院 | High-flux single crystal growth device |
| CN113234904A (en) * | 2021-05-10 | 2021-08-10 | 烟台大学 | High-flux preparation method and device of gradient material |
| CN113305283A (en) * | 2021-05-25 | 2021-08-27 | 西北工业大学 | High-flux preparation method of metal part |
-
2022
- 2022-05-18 CN CN202210539125.6A patent/CN114934312A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4307769A (en) * | 1978-12-29 | 1981-12-29 | Office National D'etudes Et De Recherches Aerospatiales (O.N.E.R.A.) | Method and an apparatus for manufacturing metallic composite material bars by unidirectional solidification |
| CN105954074A (en) * | 2016-04-26 | 2016-09-21 | 北京科技大学 | Device for high-throughput preparation of multi-component gradient metal materials |
| CN109082710A (en) * | 2018-09-17 | 2018-12-25 | 中国科学院金属研究所 | A kind of preparation method of the nickel-base high-temperature single crystal alloy coupon of chemical component continuous gradient distribution |
| CN111254484A (en) * | 2020-01-17 | 2020-06-09 | 曲靖师范学院 | High-flux single crystal growth device |
| CN113234904A (en) * | 2021-05-10 | 2021-08-10 | 烟台大学 | High-flux preparation method and device of gradient material |
| CN113305283A (en) * | 2021-05-25 | 2021-08-27 | 西北工业大学 | High-flux preparation method of metal part |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118425208A (en) * | 2024-07-02 | 2024-08-02 | 东北大学 | Neutron in-situ diagnosis system and method for directional solidification process of single crystal superalloy |
| CN118425208B (en) * | 2024-07-02 | 2024-10-01 | 东北大学 | Neutron in-situ diagnosis system and method for directional solidification process of single crystal superalloy |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10576537B2 (en) | Multi-shot casting | |
| CN107971490A (en) | A kind of increasing material preparation method of surface high-entropy alloy gradient metallurgy layer | |
| US3847203A (en) | Method of casting a directionally solidified article having a varied composition | |
| CN109082710B (en) | Preparation method of nickel-based single crystal superalloy test rod with chemical components distributed in continuous gradient manner | |
| CN104690256A (en) | Directional solidification method for controlling foreign crystal defects of nickel-base superalloy step cast | |
| CN107385513B (en) | Central heating and central cooling device for directional solidification furnace | |
| CN110777284B (en) | High-defect-tolerance single-crystal high-temperature alloy component and preparation method thereof | |
| CN114934312A (en) | Device and method for manufacturing high-throughput sample and gradient functional material | |
| CN114657413A (en) | Fully lamellar deformation TiAl alloy and preparation method thereof | |
| CN110117789A (en) | A kind of method for preparing high-entropy alloy and device based on Laser Clad Deposition | |
| CN111168004B (en) | Method for forming single crystal part by gel casting integrated casting based on spiral crystal selector with seed crystal block embedded structure | |
| CN115094392A (en) | Preparation method of fine-grain high-density nickel-chromium-aluminum-yttrium-silicon alloy target material | |
| CN109351951B (en) | Process method for reducing loosening defect of single crystal blade platform | |
| CN112453357B (en) | Method for preparing large-size single crystal blade for heavy gas turbine by using platform-shaped seed crystal | |
| US20230033669A1 (en) | Multiple materials and microstructures in cast alloys | |
| Reddy et al. | Numerical simulation of directionally solidified CM247LC high pressure turbine blade | |
| CN113165054B (en) | Controlled grain microstructure in cast alloys | |
| CN116334422B (en) | Forming method capable of realizing grain refinement of K4202 superalloy | |
| Reddy et al. | Numerical simulation of CM247SX single crystal high pressure turbine vane | |
| CN113976864B (en) | Device and method for reducing generation of blade mixed crystals by adopting gas film method | |
| CN216614803U (en) | Master alloy quality control flow distribution disc of vacuum induction furnace | |
| CN114346180B (en) | Method for controlling mosaic defects of single crystal high-temperature alloy blade | |
| CN116575004B (en) | Multi-principal element alloy target material and preparation method and application thereof | |
| CN105014037A (en) | Manufacturing method and device for mono-crystal-like turbofan aviation engine blade | |
| Toloraya et al. | Formation of single-crystal structure of large-size cast GTE and GTU turbine blades in facilities for high-gradient directed crystallization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |