CN112458350A - Mo2FeB2 cermet material and preparation method thereof - Google Patents
Mo2FeB2 cermet material and preparation method thereof Download PDFInfo
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- CN112458350A CN112458350A CN202011266531.7A CN202011266531A CN112458350A CN 112458350 A CN112458350 A CN 112458350A CN 202011266531 A CN202011266531 A CN 202011266531A CN 112458350 A CN112458350 A CN 112458350A
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- 239000000463 material Substances 0.000 title claims abstract description 71
- 239000011195 cermet Substances 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 53
- 238000005245 sintering Methods 0.000 claims abstract description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000000498 ball milling Methods 0.000 claims abstract description 28
- 229910052580 B4C Inorganic materials 0.000 claims abstract description 22
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 22
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 claims abstract description 22
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 21
- 238000001035 drying Methods 0.000 claims abstract description 21
- 108010038629 Molybdoferredoxin Proteins 0.000 claims abstract description 14
- HBELESVMOSDEOV-UHFFFAOYSA-N [Fe].[Mo] Chemical compound [Fe].[Mo] HBELESVMOSDEOV-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 229910001309 Ferromolybdenum Inorganic materials 0.000 claims abstract description 8
- 238000000227 grinding Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 239000003502 gasoline Substances 0.000 claims description 5
- 238000007731 hot pressing Methods 0.000 claims description 5
- 238000000748 compression moulding Methods 0.000 claims description 4
- 238000000462 isostatic pressing Methods 0.000 claims description 4
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims description 4
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- 238000001513 hot isostatic pressing Methods 0.000 claims description 3
- 229940057995 liquid paraffin Drugs 0.000 claims description 3
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000010977 jade Substances 0.000 claims description 2
- 238000009768 microwave sintering Methods 0.000 claims description 2
- 238000007873 sieving Methods 0.000 claims description 2
- 239000003082 abrasive agent Substances 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 description 13
- 239000002184 metal Substances 0.000 description 13
- 229910010293 ceramic material Inorganic materials 0.000 description 7
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 5
- 238000012216 screening Methods 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000012856 weighed raw material Substances 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910001567 cementite Inorganic materials 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910003470 tongbaite Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/14—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on borides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
- C22C1/053—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor with in situ formation of hard compounds
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a Mo2FeB2 cermet material and a preparation method thereof. The material is prepared from ferromolybdenum powder, boron carbide powder, iron powder, chromium powder, nickel powder and a forming agent, has the characteristics of high hardness, good wear resistance and strong corrosion resistance, and can meet harsh service conditions. The invention also provides a preparation method of the material, which comprises the steps of mixing molybdenum iron powder, boron carbide powder, iron powder, chromium powder, nickel powder and a forming agent, performing ball milling treatment, drying treatment, press forming and sintering to obtain the material.
Description
Technical Field
The invention relates to the field of metal ceramic materials, in particular to a Mo2FeB2 metal ceramic material and a preparation method thereof.
Background
The cermet has the advantages of both metal and ceramic, and has low density, high hardness, high wear resistance, high heat conductivity and no cracking caused by fast cooling or heating. In addition, a ceramic coating with good air tightness, high melting point and poor heat transfer performance is coated on the surface of the metal, and the metal or alloy can be prevented from being oxidized or corroded at high temperature. The metal ceramic not only has the toughness, high thermal conductivity and good thermal stability of metal, but also has the characteristics of high temperature resistance, corrosion resistance, wear resistance and the like of ceramic. Cermets are widely used in the outer shells of rockets, missiles, and supersonic aircraft.
The Mo2FeB2 cermet material has excellent comprehensive performance and can be applied to the fields of wear resistance, high-temperature corrosion resistance and the like. The Chinese invention patent with the application number of 2019105720181 discloses a high-strength and high-toughness Mo2FeB 2-based cermet and a preparation method thereof, wherein Mo powder, FeB powder and Fe powder are used as raw materials, and are subjected to ball milling, drying and pre-sintering in a vacuum furnace to obtain an intermediate reaction product mainly comprising a Mo2FeB2 hard phase; then crushing the obtained intermediate reaction product to obtain intermediate reaction product powder; and then preparing metal ceramic mixed powder by taking the obtained intermediate reaction product powder, Fe powder, Cr powder, Ni powder and graphite powder as raw materials, performing processes of ball milling, mixing, press forming and the like, and finally completing final sintering in a vacuum furnace. According to the technical scheme, ferroboron is used as a boron source, and reacts with pure molybdenum powder as a molybdenum source and iron powder to generate Mo2FeB2, the method is high in cost, secondary mixing is required in the preparation process, the preparation process is complex, and popularization and application of the Mo2FeB2 metal ceramic material are limited.
Disclosure of Invention
The invention aims to solve the technical problem of providing the Mo2FeB2 metal ceramic material aiming at the defects of the Mo2FeB2 metal ceramic material and the preparation technology in the prior art, wherein the material is prepared from molybdenum iron powder, boron carbide powder, iron powder, chromium powder, nickel powder and a forming agent, and has the advantages of high hardness, good wear resistance, high working temperature and good toughness.
The invention also provides a preparation method of the Mo2FeB2 cermet material, which is to mix the raw materials with a forming agent, and obtain the Mo2FeB2 cermet material through ball milling treatment, drying treatment, press forming and sintering. The preparation method has the advantages of few raw material types and reasonable process design, and can be applied to industrial production in a large scale.
The invention also aims to solve another technical problem of providing the Mo2FeB2 metal ceramic material prepared by the Mo2FeB2 metal ceramic material preparation method.
The purpose of the invention is realized by the following technical scheme:
the Mo2FeB2 cermet material is prepared by taking ferromolybdenum powder, boron carbide powder, iron powder, chromium powder and nickel powder as raw materials and a forming agent, wherein the ferromolybdenum powder, the boron carbide powder, the iron powder, the chromium powder and the nickel powder account for the following percentages by weight: 75-83 wt% of molybdenum iron powder, 6-10 wt% of boron carbide powder, 5-10 wt% of iron powder, 1-3 wt% of chromium powder and 1-3 wt% of nickel powder.
Preferably, the percentage of the ferromolybdenum powder, the boron carbide, the iron powder, the chromium powder and the nickel powder is respectively as follows: 75-80 wt% of molybdenum iron powder, 6-10 wt% of boron carbide powder, 5-8 wt% of iron powder, 1-3 wt% of chromium powder and 1-3 wt% of nickel powder.
Further, the forming agent is any one of liquid paraffin, zinc stearate, polyvinyl butyral, polyethylene glycol or rubber gasoline solution.
Further, the mass ratio of the raw material to the forming agent is 1: (0.02-0.05).
The invention also provides a preparation method of the Mo2FeB2 cermet material, which comprises the following steps:
s1, uniformly mixing molybdenum iron powder, boron carbide powder, iron powder, chromium powder, nickel powder and a forming agent to obtain a mixture, and putting the mixture and a ball milling medium into a ball mill for ball milling to obtain a ball grinding material;
s2, drying the ball milling material prepared in the step S1;
s3, sieving the ball milling material dried in the step S2;
s4, pressing and forming the ball grinding material processed in the step S3 to obtain a blank;
s5, placing the blank prepared in the step S4 into a sintering furnace, and sintering and cooling to obtain the Mo2FeB2 cermet material.
Further, in step S1, the ball milling medium is one of absolute ethanol, gasoline, acetone, ethane, carbon tetrachloride or benzene; the grinding ball adopted in the ball mill is any one of a hard alloy ball, a steel ball or a steel jade ball; the ball material ratio is (4-10): 1; in step S1, the grain diameter of the ball grinding material is less than or equal to 1 μm.
Further, in the step S2, drying the ball grinding material by using an air-blast drying oven, wherein the drying temperature is 80-120 ℃, and the drying time is 12-48 hours; in the step S3, the mesh number of the screen is 50-150 meshes.
Further, in step S4, the press molding is compression molding or isostatic pressing, and the pressure is 100-300 MPa.
Further, the sintering in step S5 is any one of hot-pressing sintering, vacuum sintering, hot isostatic pressing sintering, or microwave sintering; the sintering process conditions were as follows:
the first stage is as follows: heating to 200-400 ℃ at the speed of 1-3 ℃/min under the condition that the vacuum degree is 5-10 Pa, and preserving heat for 30-120 min;
and a second stage: preserving the heat for 120-240 min at 900-1100 ℃;
and a third stage: sintering for 30min at 1200-1300 ℃.
A fourth stage: cooling along with the furnace temperature to obtain the Mo2FeB2 cermet material.
The invention carries out staged sintering on the green body formed by pressing, wherein the first stage mainly aims at degreasing, namely removing substances such as forming agents and the like added in the ball milling process, reducing the residue of impurities in the finished product, improving the purity of the product and being beneficial to ensuring the quality of the product.
A Mo2FeB2 cermet material prepared according to the above process.
Compared with the prior art, the invention has the beneficial effects that:
the Mo2FeB2 cermet material is prepared by taking ferromolybdenum powder, boron carbide, iron powder, chromium powder and nickel powder as raw materials and performing mixing, ball milling, drying, screening, molding and sintering, and the preparation method has the advantages of few raw material types and simple preparation process.
According to the invention, the ferromolybdenum powder is used as a molybdenum source, boron carbide is used as a boron source to react with iron and chromium carbide to generate the Mo2FeB2 ternary boride, and compared with the prior art in which ferroboron is used as a boron source to react with molybdenum powder as a molybdenum source and iron to prepare Mo2FeB2, the cost of the raw materials used in the invention is lower.
The Mo2FeB2 cermet material prepared by the method has the characteristics of high hardness, good wear resistance, high working temperature and good toughness, and can meet harsh service conditions.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the following examples, but the scope of the present invention is not limited to the following specific examples.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.
Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by existing methods.
Example 1
The embodiment provides a preparation method of a Mo2FeB2 cermet material, which comprises the following steps:
s1, respectively weighing molybdenum iron powder, boron carbide powder, iron powder, chromium powder and nickel powder, wherein the mass ratio of the molybdenum iron powder to the boron carbide powder to the iron powder to the chromium powder to the nickel powder is 81:8:9: 1: 1; uniformly mixing the weighed raw materials with a forming agent liquid paraffin, wherein the mass ratio of the raw materials to the forming agent is 1:0.02, and obtaining a mixture; putting the mixture and ball milling medium absolute ethyl alcohol into a ball mill for ball milling, wherein the grinding balls used by the ball mill are hard alloy balls, and the ball-to-material ratio is 4: 1; ball milling to obtain ball grinding material with particle size not greater than 1 micron;
s2, putting the ball-milled material prepared in the step S1 into an air-blowing drying oven, and drying for 48 hours at the temperature of 80 ℃;
s3, screening the dried ball-milled material obtained in the step S2, wherein the mesh number of the screen is 150 meshes;
s4, carrying out compression molding on the ball grinding material processed in the step S3 under the pressure of 100MPa to obtain a blank;
s5, carrying out hot-pressing sintering on the green body prepared in the step S4, wherein the sintering process is as follows:
the first stage is as follows: heating to 200-400 ℃ at the speed of 1-3 ℃/min under the condition that the vacuum degree is 5-10 Pa, and preserving heat for 30-120 min;
and a second stage: preserving the heat for 120-240 min at 900-1100 ℃;
and a third stage: sintering for 30min at 1200-1300 ℃.
A fourth stage: cooling along with the furnace temperature to obtain the Mo2FeB2 cermet material.
Example 2
The embodiment provides a preparation method of a Mo2FeB2 cermet material, which comprises the following steps:
s1, respectively weighing molybdenum iron powder, boron carbide powder, iron powder, chromium powder and nickel powder, wherein the mass ratio of the molybdenum iron powder to the boron carbide powder to the iron powder to the chromium powder to the nickel powder is 78:8:10: 2: 2; uniformly mixing the weighed raw materials with a forming agent zinc stearate, wherein the mass ratio of the raw materials to the forming agent is 1:0.03, and obtaining a mixture; putting the mixture and ball milling medium gasoline into a ball mill for ball milling, wherein the grinding balls used by the ball mill are hard alloy balls, and the ball-to-material ratio is 4: 1; ball milling to obtain ball grinding material with particle size not greater than 1 micron;
s2, putting the ball-milled material prepared in the step S1 into an air-blowing drying oven, and drying for 20 hours at the temperature of 90 ℃;
s3, screening the dried ball-milled material obtained in the step S2, wherein the mesh number of the screen is 200 meshes;
s4, carrying out compression molding on the ball grinding material processed in the step S3 under the pressure of 200MPa to obtain a blank;
s5, carrying out hot-pressing sintering on the green body prepared in the step S4, wherein the sintering process is as follows:
heating to 200-400 ℃ at the speed of 1-3 ℃/min under the condition that the vacuum degree is 5-10 Pa, and preserving heat for 30-120 min;
and a second stage: preserving the heat for 120-240 min at 900-1100 ℃;
and a third stage: sintering for 30min at 1200-1300 ℃.
A fourth stage: cooling along with the furnace temperature to obtain the Mo2FeB2 cermet material.
Example 3
The embodiment provides a preparation method of a Mo2FeB2 cermet material, which comprises the following steps:
s1, respectively weighing molybdenum iron powder, boron carbide powder, iron powder, chromium powder and nickel powder in a mass ratio of 80:7:8:2: 3; uniformly mixing the weighed raw materials with a forming agent polyvinyl butyral, wherein the mass ratio of the raw materials to the forming agent is 1:0.04, and obtaining a mixture; putting the mixture and a ball milling medium acetone into a ball mill for ball milling, wherein the grinding balls used by the ball mill are steel balls, and the ball-to-material ratio is 6: 1; ball milling to obtain ball grinding material with particle size not greater than 1 micron;
s2, putting the ball-milled material prepared in the step S1 into an air-blast drying oven, and drying for 30 hours at the temperature of 100 ℃;
s3, screening the dried ball-milled material obtained in the step S2, wherein the mesh number of the screen is 100 meshes;
s4, isostatic pressing the ball grinding material processed in the step S3 under the pressure of 200MPa to obtain a blank;
s5, carrying out hot-pressing sintering on the green body prepared in the step S4, wherein the sintering process is as follows:
the first stage is as follows: heating to 200-400 ℃ at the speed of 1-3 ℃/min under the condition that the vacuum degree is 5-10 Pa, and preserving heat for 30-120 min;
and a second stage: preserving the heat for 120-240 min at 900-1100 ℃;
and a third stage: sintering for 30min at 1200-1300 ℃.
A fourth stage: cooling with the furnace temperature to obtain the Mo2FeB2 cermet material
Example 4
The embodiment provides a preparation method of a Mo2FeB2 cermet material, which comprises the following steps:
s1, respectively weighing molybdenum iron powder, boron carbide powder, iron powder and chromium powder according to the mass ratio of 83:6:7: 2: 2; uniformly mixing the weighed raw materials with a forming agent polyethylene glycol, wherein the mass ratio of the raw materials to the forming agent is 1:0.05, and obtaining a mixture; putting the mixture and a ball milling medium ethane into a ball mill for ball milling, wherein the grinding balls used by the ball mill are steel balls, and the ball-to-material ratio is 8: 1; ball milling to obtain ball grinding material with particle size not greater than 1 micron;
s2, putting the ball-milled material prepared in the step S1 into an air-blowing drying oven, and drying for 36 hours at the temperature of 110 ℃;
s3, screening the dried ball-milled material obtained in the step S2 to obtain a screen mesh with the mesh number of 120 meshes;
s4, isostatic pressing the ball grinding material processed in the step S3 under the pressure of 260MPa to obtain a blank;
s5, carrying out hot isostatic pressing sintering on the green body prepared in the step S4, wherein the sintering process is as follows:
the first stage is as follows: heating to 200-400 ℃ at the speed of 1-3 ℃/min under the condition that the vacuum degree is 5-10 Pa, and preserving heat for 30-120 min;
and a second stage: preserving the heat for 120-240 min at 900-1100 ℃;
and a third stage: sintering for 30min at 1200-1300 ℃.
A fourth stage: cooling along with the furnace temperature to obtain the Mo2FeB2 cermet material.
The Mo2FeB2 cermet materials prepared in examples 1-5 were subjected to various performance tests, and the results are shown in Table 1:
TABLE 1
| Relative density (%) | Hardness (HRA) | Bending strength (MPa) | |
| Example 1 | 98.8～99.5 | 86.1～89.2 | 1384～1589 |
| Example 2 | 99.2～99.7 | 87.5～90.3 | 1397～1595 |
| Example 3 | 98.9～99.2 | 85.2～88.4 | 1435～1652 |
| Example 4 | 98.7～99.3 | 86.3～893 | 1452～1675 |
It should be understood that the above examples are only for clearly illustrating the technical solutions of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The Mo2FeB2 cermet material is characterized by being prepared by taking ferromolybdenum powder, boron carbide powder, iron powder, chromium powder and nickel powder as raw materials and a forming agent, wherein the ferromolybdenum powder, the boron carbide powder, the iron powder, the chromium powder and the nickel powder account for the following percentages in terms of the total weight of the raw materials: 75-83 wt% of molybdenum iron powder, 6-10 wt% of boron carbide powder, 5-10 wt% of iron powder, 1-3 wt% of chromium powder and 1-3 wt% of nickel powder.
2. The Mo2FeB2 cermet material as claimed in claim 1, wherein the Mo2Fe powder, the B carbide, the Fe powder, the Cr powder and the Ni powder respectively account for: 75-80 wt% of molybdenum iron powder, 6-10 wt% of boron carbide powder, 5-8 wt% of iron powder, 1-3 wt% of chromium powder and 1-3 wt% of nickel powder.
3. The Mo2FeB2 cermet material as claimed in claim 1, wherein the forming agent is any one of liquid paraffin, zinc stearate, polyvinyl butyral, polyethylene glycol or rubber gasoline solution.
4. The Mo2FeB2 cermet material as claimed in claim 3, wherein the mass ratio of the raw material to the forming agent is 1: (0.02-0.05).
5. A preparation method of the Mo2FeB2 cermet material as defined in any one of claims 1-4, comprising the following steps:
s1, uniformly mixing molybdenum iron powder, boron carbide powder, iron powder, chromium powder, nickel powder and a forming agent to obtain a mixture, and putting the mixture and a ball milling medium into a ball mill for ball milling to obtain a ball grinding material;
s2, drying the ball milling material prepared in the step S1;
s3, sieving the ball milling material dried in the step S2;
s4, pressing and forming the ball grinding material processed in the step S3 to obtain a blank;
s5, placing the blank prepared in the step S4 into a sintering furnace, and sintering and cooling to obtain the Mo2FeB2 cermet material.
6. The method for preparing a Mo2FeB2 cermet material according to claim 5, wherein the ball milling medium in step S1 is one of absolute ethanol, gasoline, acetone, ethane, carbon tetrachloride or benzene; the grinding ball adopted in the ball mill is any one of a hard alloy ball, a steel ball or a steel jade ball; the ball material ratio is (4-10): 1; in step S1, the grain diameter of the ball grinding material is less than or equal to 1 μm.
7. The method for preparing the Mo2FeB2 cermet material as claimed in claim 5, wherein the drying in step S2 is carried out by drying the ball-shaped abrasive material in an air-blast drying oven at 80-120 ℃ for 12-48 hours; in the step S3, the mesh number of the screen is 50-150 meshes.
8. The method for preparing the Mo2FeB2 cermet material as claimed in claim 5, wherein the press forming in step S4 is compression molding or isostatic pressing, and the pressure is 100-300 MPa.
9. The method for preparing a Mo2FeB2 cermet material as claimed in claim 5, wherein the sintering in step S5 is any one of hot pressing sintering, vacuum sintering, hot isostatic pressing sintering or microwave sintering; the sintering process conditions were as follows:
the first stage is as follows: heating to 200-400 ℃ at the speed of 1-3 ℃/min under the condition that the vacuum degree is 5-10 Pa, and preserving heat for 30-120 min;
and a second stage: preserving the heat for 120-240 min at 900-1100 ℃;
and a third stage: sintering for 30min at 1200-1300 ℃.
A fourth stage: cooling along with the furnace temperature to obtain the Mo2FeB2 cermet material.
10. The Mo2FeB2 cermet material prepared by the preparation method of any one of claims 5-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011266531.7A CN112458350A (en) | 2020-11-13 | 2020-11-13 | Mo2FeB2 cermet material and preparation method thereof |
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| CN115786758A (en) * | 2022-11-25 | 2023-03-14 | 西安近代化学研究所 | Mo 2 FeB 2 Preparation method of-TiN-based composite material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106916986A (en) * | 2017-02-22 | 2017-07-04 | 三峡大学 | A kind of inexpensive Mo2FeB2The preparation method of based ceramic metal |
| CN109402480A (en) * | 2018-11-07 | 2019-03-01 | 湖南工业大学 | A kind of WCoB cermet material and preparation method thereof |
-
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- 2020-11-13 CN CN202011266531.7A patent/CN112458350A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106916986A (en) * | 2017-02-22 | 2017-07-04 | 三峡大学 | A kind of inexpensive Mo2FeB2The preparation method of based ceramic metal |
| CN109402480A (en) * | 2018-11-07 | 2019-03-01 | 湖南工业大学 | A kind of WCoB cermet material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 薛瑞萌;银锐明;吴泱;徐凯;皮伟强;: "B_4C制备Mo_2FeB_2金属陶瓷烧结过程中的相变及微观组织的演变过程" * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115786758A (en) * | 2022-11-25 | 2023-03-14 | 西安近代化学研究所 | Mo 2 FeB 2 Preparation method of-TiN-based composite material |
| CN115786758B (en) * | 2022-11-25 | 2024-05-10 | 西安近代化学研究所 | Mo (molybdenum)2FeB2Preparation method of-TiN-based composite material |
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