CN115821142A - FeCrNiVAl high-entropy alloy for nuclear power field machining cutter and preparation method and application thereof - Google Patents
FeCrNiVAl high-entropy alloy for nuclear power field machining cutter and preparation method and application thereof Download PDFInfo
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Abstract
The FeCrNiVAl high-entropy alloy for the nuclear power field processing cutter and the preparation method thereof provided by the invention have the advantages that the FeCrNiVAl high-entropy alloy is used as a raw material, a laser additive manufacturing or fusion welding means is adopted to synthesize a high-entropy alloy material, the differences of thermal expansion coefficients, melting points, elastic moduli and the like among elements can be realized, the residual stress level in the additive manufacturing process can be reduced, the precipitation of hard brittle phases can be avoided, the manufacturing requirements of the cutter can be met, and the high-entropy alloy material for the nuclear power field processing cutter is manufacturedHigh-strength high-entropy alloy. By preparing FeCrNiVAl 0.5 High entropy alloy, feCrNiVAl 0.7 The high-entropy alloy and the FeCrNiVAl high-entropy alloy are used for cutters, have higher hardness, wear resistance and corrosion resistance, can be widely applied to series cutters such as drilling, reaming, milling and the like, and particularly can meet the harsh requirements of manufacturing and using the cutters in nuclear power plants.
Description
Technical Field
The invention relates to a FeCrNiVAl high-entropy alloy for a nuclear power field machining cutter, and a preparation method and application of the FeCrNiVAl high-entropy alloy.
Background
With the increasing requirements of modern advanced manufacturing industry on cutting efficiency and cutting quality, traditional alloys such as Fe-based and Ti-based alloys cannot meet the high requirements of high-speed cutting manufacturing processes, and most of the traditional alloy cutters are prepared by material preparation, carbon-poor alloy powder preparation, sintered matrix preparation, carburizing treatment and step firing, or crushing, mixing, die pressing and sintering. When a traditional alloy cutter is used for cutting experiments related to a nuclear power station, the carbon element is inevitably precipitated, so that the mechanical property and the corrosion resistance of nuclear power stainless steel are greatly affected, and the carbon content range of nuclear power key parts is strictly controlled.
Therefore, the inventor needs to research and design a special alloy, which has the advantages that the traditional alloy does not have, and can simultaneously give consideration to the excellent qualities of high hardness, high wear resistance, high ductility and toughness, and the like.
However, in the manufacturing process for which special alloys are sought, among the manufacturing methods that are employed, unlike the conventional alloys, the commonly used technical methods are arc melting, powder metallurgy, magnetron sputtering, electroplating and chemical vapor deposition. However, the alloys produced by arc melting and powder metallurgy require large amounts of expensive metal powder, which greatly increases the cost. The alloy prepared by magnetron sputtering, electroplating and chemical vapor deposition has limited thickness, so the method is not suitable for the application of cutters.
In view of this, there is a need for further composition optimization and preparation optimization of alloys for tools used in nuclear power plants.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a FeCrNiVAl high-entropy alloy for a nuclear power field machining cutter and a preparation method thereof.
In order to achieve the purpose, the invention adopts the technical scheme that: a FeCrNiVAl high-entropy alloy for a nuclear power field machining cutter comprises the following components in percentage by weight:
18-27% of iron;
16-25% of chromium;
16-26% of vanadium;
6-16% of aluminum;
the balance of nickel.
Preferably, the FeCrNiVAl high-entropy alloy is prepared from 23% of iron, 21% of chromium, 24% of nickel, 21% of vanadium and 11% of aluminum in percentage by weight.
Preferably, the FeCrNiVAl high-entropy alloy is powdery, and the particle size of the FeCrNiVAl high-entropy alloy powder is 100-350 meshes.
Preferably, the FeCrNiVAl high-entropy alloy is in a block shape or a film shape.
Further, the FeCrNiVAl high-entropy alloy is obtained through 3D printing and forming.
The invention also provides a preparation method of the FeCrNiVAl high-entropy alloy for the nuclear power field machining cutter.
In order to achieve the purpose, the invention adopts the technical scheme that: a preparation method of the FeCrNiVAl high-entropy alloy for the nuclear power field machining cutter comprises the following steps:
(1) Preparing materials: preparing metal iron, metal chromium, metal nickel, metal vanadium and metal aluminum according to target components;
(2) Smelting: adding the prepared metal iron, metal chromium, metal nickel, metal vanadium and metal aluminum into a medium-frequency induction furnace, electrifying and heating to melt the metal iron, the metal chromium, the metal nickel, the metal vanadium and the metal aluminum, and discharging the metal iron, the metal chromium, the metal nickel, the metal vanadium and the metal aluminum after the components are adjusted to be qualified in front of the furnace;
(3) Vacuum gas atomization: atomizing the alloy solution obtained in the step (2) to obtain alloy powder, wherein an atomizing medium is argon;
(4) And (3) drying: drying the alloy powder obtained by atomization in the step (3);
(5) Screening: and (5) screening the alloy powder obtained by drying in the step (4) by using a screening machine to screen out the alloy powder with a set required particle size range, namely the required powdery FeCrNiVAl high-entropy alloy.
Preferably, the FeCrNiVAl high-entropy alloy obtained in the step (5) is sent to a 3D printer for molding, and FeCrNiVAl high-entropy alloy in a block shape or a film shape is obtained and used as a raw material for cutter fusion welding.
Preferably, the powdery FeCrNiVAl high-entropy alloy obtained in the step (5) is subjected to laser additive manufacturing processing to serve as a cutter raw material.
Preferably, in the smelting process in the step (2), a small amount of prepared metal iron, metal chromium, metal nickel, metal vanadium and metal aluminum are added into the medium-frequency induction furnace, smelting is carried out, and then the rest of the ingredients are added into the molten alloy solution as a supplement.
The third purpose of the invention is to provide an application of the FeCrNiVAl high-entropy alloy for the nuclear power field processing cutter in preparation of the cutter.
In order to achieve the purpose, the invention adopts the technical scheme that: feCrNiVAl for nuclear power field machining cutter 0.5 High entropy alloy, feCrNiVAl 0.7 The high-entropy alloy and FeCrNiVAl high-entropy alloy are used for preparing cutters.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. the FeCrNiVAl high-entropy alloy for the nuclear power field processing cutter, and the preparation method and the application thereof provided by the invention are characterized in that FeCrNiVAl high-entropy powder is taken as a raw material, and a laser additive manufacturing or fusion welding means is adopted to synthesize a high-entropy alloy material, so that the differences of thermal expansion coefficients, melting points, elastic moduli and the like among elements can be effectively alleviated, and the differences of the thermal expansion coefficients, the melting points, the elastic moduli and the like in the additive manufacturing process can be reducedThe level of the generated residual stress avoids the precipitation of hard and brittle phases, can meet the manufacturing requirement of the cutter, and manufactures the high-strength high-entropy alloy. By preparing FeCrNiVAl 0.5 High entropy alloy, feCrNiVAl 0.7 The high-entropy alloy and the FeCrNiVAl high-entropy alloy are used for cutters, have higher hardness, wear resistance and corrosion resistance, and can be widely applied to series cutters such as drilling, reaming, milling and the like.
2. As a novel technology for preparing high-entropy alloy, laser additive manufacturing can be used for designing various complex shapes and obtaining formed parts with compact structures, uniform tissues and excellent performance. The high-entropy alloy obtained by additive manufacturing has smaller grain size and uniform element distribution. The high-entropy alloy prepared by using the laser additive greatly improves the aspects of the alloy such as hardness, wear resistance, corrosion resistance and the like. The service life of series of cutters such as drilling, reaming, milling and the like can be prolonged to a certain extent, particularly, because the components of the high-entropy alloy and the preparation process can not be doped with carbon elements, the FeCrNiCuAl high-entropy alloy can meet the requirements of manufacturing and using harsh cutters in a nuclear power station, and when cutting experiments related to the nuclear power station are carried out, the increase of carbon content in sampling abrasive dust can not be caused in the drilling process, so that the components of key parts can be accurately tested, and the reliable performance is ensured.
Drawings
FIG. 1 is FeCrNiVAl of example 1 0.5 Scanning electron microscope pictures of high entropy alloys;
FIG. 2 is FeCrNiVAl of example 1 0.7 Scanning electron microscope pictures of high entropy alloys;
FIG. 3 is a scanning electron microscope image of FeCrNiVAl high entropy alloy of example 1;
FIG. 4 is a scanning electron microscope image of FeCrNiVAl high entropy alloy when the laser power of example 2 is 800W;
FIG. 5 is a scanning electron microscope image of FeCrNiVAl high entropy alloy when the laser power of example 2 is 1000W;
FIG. 6 is a scanning electron microscope image of FeCrNiVAl high entropy alloy when the laser power of example 2 is 1200W;
FIG. 7 is a scanning electron microscope image of FeCrNiVAl high entropy alloy when the laser power of example 2 is 1400W;
FIG. 8 is a scanning electron microscope image of FeCrNiVAl high entropy alloy when the laser power of example 2 is 1600W.
Detailed Description
The technical solution of the present invention is further explained below.
The invention provides a preparation method of a FeCrNiVAl high-entropy alloy for a nuclear power field machining cutter, which comprises the following components in percentage by weight: 18-27% of iron; 16-25% of chromium; 16-26% of vanadium; 6-16% of aluminum; the balance of nickel, which accounts for 19-28%.
The FeCrNiVAl high-entropy alloy is a disordered and disordered high-entropy alloy, has a higher entropy value, and can reduce the energy of a system and improve the stability of the system due to high disorder degree. The FeCrNiVAl high-entropy alloy is used as a cutting tool material, so that the hardness of the cutting tool is improved, the wear resistance of the cutting tool is improved, and the comprehensive performance of the cutting tool is improved.
The FeCrNiVAl high-entropy alloy has the following functions of elements:
iron element: the heat of formation in the high-entropy alloy decreases with increasing molar content of Fe;
chromium element: the ductility and the hardness of the material are improved;
nickel element: the melting point of the solid solution is reduced, and the laser energy is reduced, so that the heat affected zone can be effectively reduced;
vanadium element: refining the structure and the crystal grains and increasing the coarsening temperature of the crystal grains;
aluminum element: improve the oxidation resistance of the alloy and change the crystal structure of the alloy.
The FeCrNiVAl high-entropy alloy can be powdery, the powdery FeCrNiVAl high-entropy alloy can be processed for cutter raw materials by laser additive manufacturing, and the FeCrNiVAl powder is used for forming a high-entropy alloy material in the additive manufacturing process, so that the differences of thermal expansion coefficients, melting points, elastic moduli and the like among elements can be effectively alleviated, the residual stress level of the alloy in the additive manufacturing process can be reduced, the hardness and the wear resistance of the alloy are improved, and the manufacturing requirements of cutters are met.
The FeCrNiVAl high-entropy alloy can also be in a block shape or a film shape after 3D printing and forming, and the block-shaped or film-shaped FeCrNiVAl high-entropy alloy can be used as a cutter raw material.
The invention also provides a preparation method of the FeCrNiVAl high-entropy alloy for the nuclear power field machining cutter, which specifically comprises the following process steps of:
(1) Preparing materials:
adopting metal iron, metal chromium, metal nickel, metal vanadium and metal aluminum as raw materials, and preparing according to target components;
(2) Smelting:
adding the prepared metal iron, metal chromium, metal nickel, metal vanadium and metal aluminum into a medium-frequency induction furnace, and electrifying and heating to melt the metal iron, the metal chromium, the metal nickel, the metal vanadium and the metal aluminum. In the smelting step, a small amount of prepared metal iron, metal chromium, metal nickel, metal vanadium and metal aluminum are added into a medium-frequency induction furnace, smelting is carried out firstly, and then the rest ingredients are added into the molten alloy solution as supplementary materials. When the supplementary material is added, the temperature in the medium frequency induction furnace is controlled at 1500-1550 ℃;
after the smelting is finished, discharging the molten steel after the components in front of the furnace are qualified, and controlling the discharging temperature to be 1450-1500 ℃;
(3) Vacuum gas atomization:
atomizing the alloy solution obtained in the step (2) to obtain alloy powder, wherein the atomizing medium is argon, and the atomizing pressure is 2-10 MPa;
(4) And (3) drying:
drying the alloy powder obtained by atomization in the step (3), wherein a far infrared dryer is adopted in the step, and the drying temperature is 200-250 ℃;
(5) Screening:
and (5) screening the alloy powder obtained by drying in the step (4) by using a screening machine to screen out the alloy powder with the set required particle size range, namely the required powdery FeCrNiVAl high-entropy alloy. Preferably, the particle size of the FeCrNiVAl high-entropy alloy powder is 100-350 meshes, and the high-entropy alloy powder in the particle size range is screened out to be used as finished product powder for later use.
The sources of the raw materials used in the present invention are not limited, and all of them are commercially available.
The powdery FeCrNiVAl high-entropy alloy can be directly made into a material by laser additive manufacturing and processing and is used for a cutter; if the material is prepared by adopting a fusion welding process, the powdery FeCrNiVAl high-entropy alloy needs to be printed and formed in a block shape or a film shape through 3D, and then the FeCrNiVAl high-entropy alloy is welded into a cutter material.
The technical solution of the present invention is further described with reference to the following specific examples:
example 1
(1)FeCrNiVAl 0.5 High entropy alloy
The formula comprises the following components in percentage by weight: 24% of iron, 23% of chromium, 25% of nickel, 22% of vanadium and 6% of aluminum. Adding the prepared metal iron, metal chromium, metal nickel, metal vanadium and metal aluminum into a medium-frequency induction furnace, electrifying and heating to melt the metal iron, the metal chromium, the metal nickel, the metal vanadium and the metal aluminum, and controlling the temperature in the medium-frequency induction furnace to be about 1520 ℃. And discharging after the components are adjusted to be qualified in front of the furnace, wherein the discharging temperature is 1460 ℃.
And atomizing the alloy melt to prepare alloy powder, wherein the atomizing medium is argon, and the atomizing pressure is 4MPa. And drying the atomized alloy powder by using a far infrared dryer at the drying temperature of 210 ℃. Then sieving with a sieving machine to obtain a particle size of 100 ～ 350 mesh powder is used as finished powder. The product powder can be directly used as powdered FeCrNiVAl 0.5 The high-entropy alloy is processed by utilizing laser additive manufacturing and is used as a cutter material.
(2)FeCrNiVAl 0.7 High entropy alloy
The formula comprises the following components in percentage by weight: 24% of iron, 22% of chromium, 25% of nickel, 22% of vanadium and 7% of aluminum. Adding the prepared metal iron, metal chromium, metal nickel, metal vanadium and metal aluminum into a medium-frequency induction furnace, electrifying and heating to melt the metal iron, the metal chromium, the metal nickel, the metal vanadium and the metal aluminum, and controlling the temperature in the medium-frequency induction furnace to be about 1520 ℃. And discharging after the components are adjusted to be qualified in front of the furnace, wherein the discharging temperature is 1460 ℃.
And atomizing the alloy melt to prepare alloy powder, wherein the atomizing medium is argon, and the atomizing pressure is 4MPa. After atomization treatment by far infrared dryerAnd (3) drying the alloy powder at the drying temperature of 210 ℃. Then sieving with a sieving machine to obtain a particle size of 100 ～ 350 mesh powder is used as finished powder. The product powder can be directly used as powdered FeCrNiVAl 0.7 The high-entropy alloy is processed by utilizing laser additive manufacturing and is used as a cutter material.
(3) FeCrNiVAl high entropy alloy
The formula comprises the following components in percentage by weight: 23% of iron, 21% of chromium, 24% of nickel, 21% of vanadium and 11% of aluminum. Adding the prepared metal iron, metal chromium, metal nickel, metal vanadium and metal aluminum into a medium-frequency induction furnace, electrifying and heating to melt the metal iron, the metal chromium, the metal nickel, the metal vanadium and the metal aluminum, and controlling the temperature in the medium-frequency induction furnace to be about 1520 ℃. And discharging after the components are adjusted to be qualified in front of the furnace, wherein the discharging temperature is 1460 ℃.
And atomizing the alloy melt to prepare alloy powder, wherein the atomizing medium is argon, and the atomizing pressure is 4MPa. And drying the atomized alloy powder by using a far infrared dryer at the drying temperature of 210 ℃. Then sieving with a sieving machine to obtain a particle size of 100 ～ 350 mesh powder is used as finished powder. The finished powder is directly used as a powdery FeCrNiVAl high-entropy alloy and is processed by laser additive manufacturing to be used as a cutter material.
The high-entropy alloy with different component ratios is subjected to air cooling at room temperature of 625 ℃ for x4x1h, then the Vickers hardness test is carried out, the bottom retention time of the Vickers hardness test is 10s, the test force is 200g, and the test results are as follows:
results of Vickers hardness test
The vickers hardness test results show that: the high-entropy alloy formed by using different component proportions has higher hardness, which shows that the obtained FeCrNiVAl high-entropy alloy still obtains great hardness after tempering, improves the hot hardness and the performance, can be used as a cutter material, and can be widely applied to series cutters such as drilling, reaming, milling and the like.
The fracture toughness tests are carried out on the high-entropy alloy with different component ratios, and the test results are as follows:
fracture toughness test results
The fracture toughness test result shows that the high-entropy alloy with different component ratios has higher bending strength and fracture toughness, so that the FeCrNiVAl high-entropy alloy has higher fracture toughness, effectively prevents crack propagation, can be used as a tool material, and can be widely applied to series tools such as drilling, reaming, milling and the like.
Example 2
The formula comprises the following components in percentage by weight: 23% of iron, 21% of chromium, 24% of nickel, 21% of vanadium and 11% of aluminum. Adding the prepared metal iron, metal nickel, metal vanadium and metal aluminum into a medium-frequency induction furnace, electrifying and heating to melt the metal iron, the metal nickel, the metal vanadium and the metal aluminum, and controlling the temperature in the medium-frequency induction furnace to be about 1520 ℃. And discharging after the components are adjusted to be qualified in front of the furnace, wherein the discharging temperature is 1460 ℃.
And atomizing the alloy melt to prepare alloy powder, wherein the atomizing medium is argon, and the atomizing pressure is 4MPa. And drying the atomized alloy powder by using a far infrared dryer at the drying temperature of 210 ℃. Then sieving with a sieving machine to obtain a particle size of 100 ～ 350 mesh powder is used as finished powder. The finished powder is directly used as a powdery FeCrNiVAl high-entropy alloy and is used as a material for a cutter in laser additive manufacturing.
In this embodiment, feCrNiVAl high-entropy alloys are prepared by changing laser power, and laser deposition experiments are performed with powers of 800w,1000w,1200w,1400,1600w, respectively, to obtain 5 groups of FeCrNiVAl high-entropy alloys.
The scanning electron microscope pictures of the FeCrNiVAl high-entropy alloy processed under the 5 laser powers are respectively shown in fig. 4, fig. 5, fig. 6, fig. 7 and fig. 8, and it can be seen from the pictures that when the laser power of fig. 6 is 1200W, the combination is good, no obvious crack appears, and the FeCrNiVAl high-entropy alloy has better performance.
The high-entropy alloy with different component ratios is subjected to air cooling at room temperature of 625 ℃ for x4x1h, then the Vickers hardness test bottom retention time is 10s, the test force is 200g, and the test results are as follows:
results of Vickers hardness test
The vickers hardness test results show that: the hardness of the high-entropy alloy formed by using different component proportions is relatively high, which indicates that the obtained FeCrNiVAl high-entropy alloy still obtains relatively high hardness after tempering, the hot hardness is improved, the performance is improved, and the alloy can be used as a cutter material, but we can see that when the laser power is 1200w, the hardness of the obtained material is relatively high, and that the laser power of 1200w is adopted as an optimal parameter for experiments.
The fracture toughness test is carried out on FeCrNiVAl high-entropy alloy obtained under different powers, and the test result is as follows:
fracture toughness test results
The fracture toughness test result shows that the bending strength and the fracture toughness of the high-entropy alloy with different component ratios are relatively high, and the FeCrNiVAl high-entropy alloy obtained has relatively high fracture toughness and can effectively prevent crack propagation, but the bending strength and the fracture toughness of the obtained material are particularly outstanding when the laser power is 1200w, so that the laser power of 1200w is used as the optimal parameter of the experiment.
Example 3
The formula comprises the following components in percentage by weight: 23% of metallic iron, 21% of chromium, 24% of nickel, 21% of vanadium and 11% of metallic aluminum. Adding the prepared metal iron, metal chromium, metal nickel, metal vanadium and metal aluminum into a medium-frequency induction furnace, electrifying and heating to melt the metal iron, the metal chromium, the metal nickel, the metal vanadium and the metal aluminum, and controlling the temperature in the medium-frequency induction furnace to be about 1520 ℃. And discharging after the components are adjusted to be qualified in front of the furnace, wherein the discharging temperature is 1460 ℃.
And atomizing the alloy melt to prepare alloy powder, wherein the atomizing medium is argon, and the atomizing pressure is 4MPa. And drying the atomized alloy powder by using a far infrared dryer at the drying temperature of 210 ℃. Then sieving with a sieving machine to obtain a particle size of 100 ～ 350 mesh powder is used as finished powder.
And (3) feeding the finished product powder into a 3D printer for molding, and molding to obtain the high-entropy alloy block. The joint is melted by laser to obtain FeCrNiVAl high-entropy alloy which is obtained by a laser melting method, and the FeCrNiVAl high-entropy alloy is used for cutter materials, can be widely applied to series cutters such as drilling, reaming, milling and the like, and particularly can meet the harsh requirements of manufacturing and using the cutters in nuclear power stations.
The above-mentioned embodiments are merely illustrative of the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.
Claims (10)
1. A FeCrNiVAl high-entropy alloy for nuclear power field machining cutters is characterized in that: the FeCrNiVAl high-entropy alloy comprises the following components in percentage by weight:
18-27% of iron;
16-25% of chromium;
16-26% of vanadium;
6-16% of aluminum;
the balance of nickel.
2. The FeCrNiVAl high-entropy alloy for the nuclear power field machining cutter is characterized in that: the FeCrNiVAl high-entropy alloy is prepared from 23% of iron, 21% of chromium, 24% of nickel, 21% of vanadium and 11% of aluminum in percentage by weight.
3. The FeCrNiVAl high-entropy alloy for the nuclear power field machining cutter as claimed in claim 1, which is characterized in that: the FeCrNiVAl high-entropy alloy is powdery, and the particle size of the FeCrNiVAl high-entropy alloy powder is 100-350 meshes.
4. The FeCrNiVAl high-entropy alloy for the nuclear power field machining cutter is characterized in that: the FeCrNiVAl high-entropy alloy is in a block shape or a film shape.
5. The FeCrNiVAl high-entropy alloy for the nuclear power field machining cutter is characterized in that: the FeCrNiVAl high-entropy alloy is obtained by 3D printing and forming.
6. The preparation method of the FeCrNiVAl high-entropy alloy for the nuclear power field machining cutter as claimed in claim 1, characterized by comprising the following steps:
(1) Preparing materials: preparing metal iron, metal chromium, metal nickel, metal vanadium and metal aluminum according to target components;
(2) Smelting: adding the prepared metal iron, metal chromium, metal nickel, metal vanadium and metal aluminum into a medium-frequency induction furnace, electrifying and heating to melt the metal iron, the metal chromium, the metal nickel, the metal vanadium and the metal aluminum, and discharging the metal iron, the metal chromium, the metal nickel, the metal vanadium and the metal aluminum after the components are adjusted to be qualified in front of the furnace;
(3) Vacuum gas atomization: atomizing the alloy solution obtained in the step (2) to obtain alloy powder, wherein an atomizing medium is argon;
(4) And (3) drying: drying the alloy powder obtained by atomization in the step (3);
(5) Screening: and (5) screening the alloy powder obtained by drying in the step (4) by using a screening machine to screen out the alloy powder with the set required particle size range, namely the required powdery FeCrNiVAl high-entropy alloy.
7. The method of manufacturing according to claim 6, characterized in that: and (3) feeding the FeCrNiVAl high-entropy alloy obtained in the step (5) into a 3D printer for molding to obtain a block-shaped or film-shaped FeCrNiVAl high-entropy alloy serving as a raw material required by the cutter.
8. The method of claim 6, wherein: and (4) processing the powdery FeCrNiVAl high-entropy alloy obtained in the step (5) by using laser additive manufacturing to obtain a cutter raw material.
9. The method of claim 6, wherein: in the smelting process of the step (2), a small amount of prepared metal iron, metal chromium, metal nickel and metal vanadium are firstly added into the medium-frequency induction furnace, and then the metal aluminum is smelted firstly, and then the rest of the ingredients are added into the molten alloy solution as a supplementary material.
10. The FeCrNiVAl high-entropy alloy for the nuclear power field machining tool as claimed in any one of claims 1 to 5, can be used for products in the series of drilling, reaming and milling.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105755324A (en) * | 2016-03-02 | 2016-07-13 | 北京理工大学 | High-entropy alloy with high strength and toughness and preparation method thereof |
| CN108193088A (en) * | 2017-12-29 | 2018-06-22 | 北京理工大学 | A kind of precipitation strength type AlCrFeNiV system high-entropy alloys and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105755324A (en) * | 2016-03-02 | 2016-07-13 | 北京理工大学 | High-entropy alloy with high strength and toughness and preparation method thereof |
| CN108193088A (en) * | 2017-12-29 | 2018-06-22 | 北京理工大学 | A kind of precipitation strength type AlCrFeNiV system high-entropy alloys and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| HAILI YAO等: "High strength and ductility AlCrFeNiV high entropy alloy with hierarchically heterogeneous microstructure prepared by selective laser melting", 《JOURNAL OF ALLOYS AND COMPOUNDS》, vol. 813, pages 1 - 8 * |
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Country or region after: China Address after: 215000 136 aigehao Road, Weitang Town, Xiangcheng District, Suzhou City, Jiangsu Province Applicant after: D & M SUZHOU PREC CUTTING TOOLS Co.,Ltd. Address before: 215000 136 aigehao Road, Weitang Town, Xiangcheng District, Suzhou City, Jiangsu Province Applicant before: D&M (SUZHOU) PRECISION CUTTING TOOLS CO.,LTD. Country or region before: China |