CN114855054A - Molybdenum-zirconium-based alloy material and preparation method thereof - Google Patents
Molybdenum-zirconium-based alloy material and preparation method thereof Download PDFInfo
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- 239000000956 alloy Substances 0.000 title claims abstract description 51
- KVMWOOXRTBUMIS-UHFFFAOYSA-N molybdenum zirconium Chemical compound [Zr].[Mo].[Mo] KVMWOOXRTBUMIS-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 229910052802 copper Inorganic materials 0.000 claims abstract description 19
- 229910052742 iron Inorganic materials 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims abstract description 3
- 238000005245 sintering Methods 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 17
- 229910052726 zirconium Inorganic materials 0.000 claims description 14
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- 238000007731 hot pressing Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 238000011049 filling Methods 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000009776 industrial production Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000003723 Smelting Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 15
- 239000010949 copper Substances 0.000 description 13
- 238000009702 powder compression Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000007769 metal material Substances 0.000 description 5
- 238000004663 powder metallurgy Methods 0.000 description 4
- 239000006104 solid solution Substances 0.000 description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 4
- 239000010937 tungsten Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 229910001093 Zr alloy Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/04—Alloys based on tungsten or molybdenum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
-
- 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
- C22C1/045—Alloys based on refractory metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a molybdenum-zirconium-based alloy material and a preparation method thereof, belonging to the technical field of alloy smelting, wherein the alloy material is prepared from the following raw materials in percentage by mass with the average particle size of not more than 10 mu m: w16-25%, Cu 2-8%, Fe 4-11%, S3-9%, and the balance of Mo + Zr, wherein the ratio of Mo/Zr is 1.1-2.3, the purity of each component is more than or equal to 99.9%, and the sum of the mass percentages is 100%. The alloy material has excellent comprehensive performance, high temperature resistance, corrosion resistance, wear resistance and other performances, and is very suitable for manufacturing parts such as friction parts, sealing parts, bearing parts and the like in the industrial production field.
Description
Technical Field
The invention relates to the technical field of alloy smelting, in particular to a molybdenum-zirconium-based alloy material and a preparation method thereof.
Background
With the development of social economy, the modern industrial production field puts higher and higher requirements on metal materials, and the metal materials are impacted by high polymer materials and ceramic materials, so that the metal materials are challenged unprecedentedly, and the improvement of the quality of the existing materials and the development of new functions of the metal materials are urgently needed.
The alloy material is a very important metal material, plays an extremely important role in various fields of industrial production, and how to better improve the performance of the alloy material or develop a novel alloy material is a problem of current and future major attention in the field of industrial production.
Disclosure of Invention
The present invention is directed to a molybdenum-zirconium based alloy material and a method for preparing the same, which solves the above-mentioned problems of the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a molybdenum-zirconium base alloy material is prepared from the following raw materials with the average grain diameter not greater than 10 mu m in percentage by mass: w16-25%, Cu 2-8%, Fe 4-11%, S3-9%, and the balance of Mo + Zr, wherein the ratio of Mo/Zr is 1.1-2.3, the purity of each component is more than or equal to 99.9%, and the sum of the mass percentages is 100%.
Preferably, the alloy material is prepared from the following raw materials in percentage by mass: w17%, Cu 3%, Fe 7%, S6%, Zr 24%, and the balance of Mo.
Preferably, the alloy material is prepared from the following raw materials in percentage by mass: w22%, Cu 5%, Fe 9%, S4%, Zr 19%, and the balance of Mo.
Preferably, the alloy material is prepared from the following raw materials in percentage by mass: w20%, Cu 8%, Fe 6%, S8%, Zr 25%, and the balance of Mo.
Preferably, the alloy material is prepared from the following raw materials in percentage by mass: w24%, Cu 4%, Fe 5%, S3%, Zr 21%, and the balance of Mo.
A preparation method of a molybdenum-zirconium-based alloy material comprises the following steps:
step one, respectively weighing raw materials with the average particle size of not more than 10 μm according to the mass percentage, wherein the purity of each component is not less than 99.9 percent, and the sum of the mass percentages is 100 percent;
step two, uniformly mixing the components weighed in the step one by using a powder mixer;
filling the mixture subjected to the mixing treatment in the step two into a forming grinding tool, and performing compression forming by using a powder sample press to obtain a base material;
and step four, sintering the base material obtained in the step three by adopting a vacuum hot-pressing sintering mode, wherein the sintering temperature is 1420-1510 ℃, and obtaining the molybdenum-zirconium-based alloy material.
Preferably, the pressing pressure of the powder press machine in the step three is controlled to be 28-36 MPa.
Preferably, the vacuum pressure of the vacuum condition in the fourth step is 5.5X 10 -5 ～1.0×10 -4 Pa。
Compared with the prior art, the invention has the beneficial effects that: the molybdenum-zirconium-based alloy material selects W with high hardness, high density, strong plasticity and small thermal expansion coefficient, a powder metallurgy adhesive Cu, Fe suitable for powder metallurgy and alloy material preparation, S capable of reacting with metal to form sulfide lubricating phase, Zr with corrosion resistance, good plasticity and good sintering performance, and Mo with high hardness, small thermal expansion coefficient and improved wear resistance and heat resistance to carry out vacuum hot-pressing sintering, wherein the average grain size of the components is not more than 10 mu m. During sintering, iron is dissolved into tungsten in a solid solution mode to form a solid solution phase, copper improves the fluidity of an alloy melt, sulfur reacts with metal to generate a solid lubricant, and the addition of tungsten, molybdenum and zirconium remarkably improves the strength, corrosion resistance and heat resistance of the alloy. The material obtained after sintering has excellent comprehensive performance, high temperature resistance, corrosion resistance, wear resistance and other performances, and is very suitable for manufacturing parts such as friction parts, sealing parts, bearing parts and the like.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The weighed alloy material is prepared from the following raw materials in percentage by mass: w17%, Cu 3%, Fe 7%, S6%, Zr 24% and the balance of Mo; uniformly mixing the weighed components by using a powder mixer, filling the mixed mixture into a forming grinding tool, and performing compression forming by using a powder compression machine to obtain a base material, wherein the compression pressure of the powder compression machine is controlled at 28 MPa; sintering the obtained base material in a vacuum hot-pressing sintering mode, wherein the vacuum pressure under the vacuum condition is 5.5 multiplied by 10 -5 ～1.0×10 -4 Pa, and the sintering temperature is 1420 ℃, thus obtaining the molybdenum-zirconium-based alloy material.
Example 2
The weighed alloy material is prepared from the following raw materials in percentage by mass: w22% and Cu 5%Fe 9%, S4%, Zr 19% and the balance of Mo; uniformly mixing the weighed components by using a powder mixer, filling the mixed mixture into a forming grinding tool, and performing compression forming by using a powder compression machine to obtain a base material, wherein the compression pressure of the powder compression machine is controlled at 30 MPa; sintering the obtained base material in a vacuum hot-pressing sintering mode, wherein the vacuum pressure under the vacuum condition is 5.5 multiplied by 10 -5 ～1.0×10 -4 Pa, and the sintering temperature is 1450 ℃, thus obtaining the molybdenum-zirconium-based alloy material.
Example 3
The weighed alloy material is prepared from the following raw materials in percentage by mass: w20%, Cu 8%, Fe 6%, S8%, Zr 25% and the balance of Mo; uniformly mixing the weighed components by using a powder mixer, filling the mixed mixture into a forming grinding tool, and performing compression forming by using a powder compression machine to obtain a base material, wherein the compression pressure of the powder compression machine is controlled at 33 MPa; sintering the obtained base material in a vacuum hot-pressing sintering mode, wherein the vacuum pressure under the vacuum condition is 5.5 multiplied by 10 -5 ～1.0×10 -4 Pa, and the sintering temperature is 1480 ℃, thus obtaining the molybdenum-zirconium-based alloy material.
Example 4
The weighed alloy material is prepared from the following raw materials in percentage by mass: w24%, Cu 4%, Fe 5%, S3%, Zr 21% and the balance of Mo; uniformly mixing the weighed components by using a powder mixer, filling the mixed mixture into a forming grinding tool, and performing compression forming by using a powder compression machine to obtain a base material, wherein the compression pressure of the powder compression machine is controlled at 36 MPa; sintering the obtained base material in a vacuum hot-pressing sintering mode, wherein the vacuum pressure under the vacuum condition is 5.5 multiplied by 10 -5 ～1.0×10 -4 Pa, and the sintering temperature is 1510 ℃, thus obtaining the molybdenum-zirconium-based alloy material.
The four groups of examples 1 to 4 are tested, the expansion coefficient is measured by using a ws-sdt-2000 metal linear expansion coefficient measuring instrument, the room temperature tensile test of the molybdenum-zirconium alloy is carried out on an Instron5948 mechanical property testing system, and the molybdenum-zirconium alloy sheet is made into a tensile sample, and the size of the tensile sample is as follows:length x width x thickness equal to 6 x 3 x 0.5mm 3 The radius of the transition circle is 3mm, the total length is 25mm, and the tensile strain rate is as follows: 1.5X 10 -3 s -1 And measuring the length change of the sample marker by using a video extensometer in the test process.
The physical and mechanical properties and the frictional wear properties of the molybdenum-zirconium based alloy material are shown in tables 1 and 2 respectively.
TABLE 1 physical and mechanical Properties of a Mo-Zr based alloy
TABLE 2 Friction-ABRASION PROPERTIES OF MOLYBDENUM-ZIRCONIUM-BASED ALLOY MATERIAL
| Temperature of | Coefficient of friction | Wear rate x 10 -14 ，m 3 /(N·m) | Elongation percentage% |
| 25 | 0.32～0.51 | 1.83～3.86 | 13.4 |
| 400 | 0.26～0.42 | 1.05～2.67 | 14.2 |
| 600 | 0.20～0.35 | 0.78～2.13 | 14.9 |
| 800 | 0.11～0.26 | 0.32～1.97 | 15.8 |
The molybdenum-zirconium-based alloy material selects W with high hardness, high density, strong plasticity and small thermal expansion coefficient, a powder metallurgy adhesive Cu, Fe suitable for powder metallurgy and alloy material preparation, S capable of reacting with metal to form sulfide lubricating phase, Zr with corrosion resistance, good plasticity and good sintering performance, and Mo with high hardness, small thermal expansion coefficient and improved wear resistance and heat resistance to carry out vacuum hot-pressing sintering, wherein the average grain size of the components is not more than 10 mu m. During sintering, iron is dissolved into tungsten in a solid solution mode to form a solid solution phase, copper improves the fluidity of an alloy melt, sulfur reacts with metal to generate a solid lubricant, and the addition of tungsten, molybdenum and zirconium remarkably improves the strength, corrosion resistance and heat resistance of the alloy. The material obtained after sintering has excellent comprehensive performance, high temperature resistance, corrosion resistance, wear resistance and other performances, and is very suitable for manufacturing parts such as friction parts, sealing parts, bearing parts and the like.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. A molybdenum-zirconium base alloy material is prepared from the following raw materials with the average grain diameter not greater than 10 mu m in percentage by mass: w16-25%, Cu 2-8%, Fe 4-11%, S3-9%, and the balance of Mo + Zr, wherein the ratio of Mo/Zr is 1.1-2.3, the purity of each component is more than or equal to 99.9%, and the sum of the mass percentages is 100%.
2. A molybdenum-zirconium based alloy material according to claim 1, wherein: the alloy material is prepared from the following raw materials in percentage by mass: w17%, Cu 3%, Fe 7%, S6%, Zr 24%, and the balance of Mo.
3. A molybdenum-zirconium based alloy material according to claim 1, wherein: the alloy material is prepared from the following raw materials in percentage by mass: w22%, Cu 5%, Fe 9%, S4%, Zr 19%, and the balance of Mo.
4. A molybdenum-zirconium based alloy material according to claim 1, wherein: the alloy material is prepared from the following raw materials in percentage by mass: w20%, Cu 8%, Fe 6%, S8%, Zr 25%, and the balance of Mo.
5. A molybdenum-zirconium based alloy material according to claim 1, wherein: the alloy material is prepared from the following raw materials in percentage by mass: w24%, Cu 4%, Fe 5%, S3%, Zr 21%, and the balance of Mo.
6. A method for producing a molybdenum-zirconium based alloy material according to claim 1, comprising the steps of:
step one, respectively weighing raw materials with the average particle size of not more than 10 μm according to the mass percentage, wherein the purity of each component is not less than 99.9 percent, and the sum of the mass percentages is 100 percent;
step two, uniformly mixing the components weighed in the step one by using a powder mixer;
filling the mixture subjected to the mixing treatment in the step two into a forming grinding tool, and performing compression forming by using a powder sample press to obtain a base material;
and step four, sintering the base material obtained in the step three by adopting a vacuum hot-pressing sintering mode, wherein the sintering temperature is 1420-1510 ℃, and obtaining the molybdenum-zirconium-based alloy material.
7. The method for producing a molybdenum-zirconium-based alloy material according to claim 6, characterized in that: and the pressing pressure of the powder pressing machine in the third step is controlled to be 28-36 MPa.
8. The method for producing a molybdenum-zirconium-based alloy material according to claim 6, characterized in that: the vacuum pressure of the vacuum condition in the fourth step is 5.5X 10 -5 ～1.0×10 -4 Pa。
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| CN202210520154.8A CN114855054A (en) | 2022-05-13 | 2022-05-13 | Molybdenum-zirconium-based alloy material and preparation method thereof |
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|---|---|---|---|---|
| JP2002173732A (en) * | 2000-11-29 | 2002-06-21 | Univ Qinghua | High entropy multicomponent alloy |
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| GB201515340D0 (en) * | 2014-08-28 | 2015-10-14 | MTU Aero Engines AG | Creep and Oxidation-Resistant Molybdenum Superalloy |
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| CN111270171A (en) * | 2020-03-09 | 2020-06-12 | 西南交通大学 | Nano-carbon reinforced Mo-Cu-Zr composite material and preparation method thereof |
| CN113981293A (en) * | 2021-10-29 | 2022-01-28 | 承德天大钒业有限责任公司 | Aluminum-molybdenum-zirconium intermediate alloy and preparation method thereof |
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2022
- 2022-05-13 CN CN202210520154.8A patent/CN114855054A/en active Pending
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Application publication date: 20220805 |