CN116555620B - Multielement alloy material and preparation method thereof - Google Patents
Multielement alloy material and preparation method thereof Download PDFInfo
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- 239000000956 alloy Substances 0.000 title claims abstract description 170
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 229910021355 zirconium silicide Inorganic materials 0.000 claims abstract description 27
- WEAMLHXSIBDPGN-UHFFFAOYSA-N (4-hydroxy-3-methylphenyl) thiocyanate Chemical compound CC1=CC(SC#N)=CC=C1O WEAMLHXSIBDPGN-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 19
- 239000012535 impurity Substances 0.000 claims abstract description 17
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 4
- 229910052762 osmium Inorganic materials 0.000 claims abstract description 4
- 229910052709 silver Inorganic materials 0.000 claims abstract description 4
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 4
- 229910052735 hafnium Inorganic materials 0.000 claims abstract description 3
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 124
- 229910001325 element alloy Inorganic materials 0.000 claims description 30
- 230000032683 aging Effects 0.000 claims description 23
- 238000005242 forging Methods 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 16
- 238000005482 strain hardening Methods 0.000 claims description 16
- 238000005266 casting Methods 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 238000003723 Smelting Methods 0.000 claims description 8
- 230000006698 induction Effects 0.000 claims description 8
- 150000002910 rare earth metals Chemical class 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- 229910052684 Cerium Inorganic materials 0.000 claims description 7
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 7
- 229910052758 niobium Inorganic materials 0.000 claims description 6
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 229910052715 tantalum Inorganic materials 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 2
- 229910052706 scandium Inorganic materials 0.000 claims 3
- 238000005260 corrosion Methods 0.000 abstract description 18
- 230000007797 corrosion Effects 0.000 abstract description 18
- 239000000463 material Substances 0.000 abstract description 6
- 239000010949 copper Substances 0.000 description 69
- 229910000881 Cu alloy Inorganic materials 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 230000004580 weight loss Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052746 lanthanum Inorganic materials 0.000 description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/01—Alloys based on copper with aluminium as the next major constituent
-
- 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
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
- C22C32/0078—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only silicides
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
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Abstract
The invention provides a multielement alloy material and a preparation method thereof, wherein the multielement alloy material comprises ：Al 1wt％-5wt％、Mo 3wt％-5wt％、Ag 0.01wt％-0.05wt％、Hf 0.03wt％-0.05wt％、V 0.2wt％-0.5wt％、Os 0.001wt％-0.003wt％、Ta0.01wt％-0.11wt％、Mn 1.2wt％-5wt％、 rare earth elements 0.01 to 0.03wt%, sc 0.01 to 0.03wt%, other elements 0.1 to 0.3wt%, B0.0001 to 0.0005wt%, nano zirconium silicide 0.001 to 0.003wt%, and the balance Cu and impurities. The material has good wear resistance, good mechanical property and excellent fatigue resistance, heat resistance and corrosion resistance.
Description
Technical Field
The invention relates to the technical field of alloy materials, in particular to a multi-element alloy material and a preparation method thereof.
Background
The production and life of human beings are not separated from the metal materials, and along with the continuous improvement of technology, metals and alloys thereof play an increasingly important role in daily life, and are the most important and most applicable materials in the modern industry. The multi-element alloy material is a common metal material and is well known for its advantages such as high hardness and low melting point. The multi-element copper alloy is a typical representative of multi-element alloy materials, has excellent electrical conductivity, thermal conductivity, ductility and processability, and is widely applied in various fields of machinery, electronics, chemical industry, ocean, aviation and the like.
The traditional multielement copper alloy has low strength and poor scouring and corrosion resistance, can not meet the service performance of the emerging field, and especially can meet the occasions of high strength, high electric conduction, heat resistance and corrosion resistance. The multi-element copper alloy materials on the market also have the defects of insufficient wear resistance, mechanical property, fatigue resistance, heat resistance and corrosion resistance to be further improved.
In order to solve the problems, chinese patent publication No. CN104480341B discloses a high-end copper material, in particular to a multi-element microalloyed heat-resistant corrosion-resistant copper alloy and a preparation system thereof, and belongs to the field of alloys. The heat-resistant corrosion-resistant multielement copper alloy comprises the following components in percentage by mass: lanthanum and yttrium accounting for 0.02 percent of the total mass of the alloy, and the balance being copper; wherein the mass ratio of lanthanum to yttrium is 1:1-1:4. The alloy copper material belongs to a high-end product and is widely applied to industries of electric power, electronics, electricity, instruments, aviation, traffic, construction, communication, military and the like. However, the wear resistance and fatigue resistance of the copper alloy material are to be further improved.
Therefore, the multi-element alloy material with good wear resistance, good mechanical property and excellent fatigue resistance, heat resistance and corrosion resistance and the preparation method thereof are developed, meet the market demand, have wide market value and application prospect, and have very important significance for promoting the development of the copper alloy material field.
Disclosure of Invention
In view of the above problems, the present invention aims to provide a multi-element alloy material having good wear resistance, good mechanical properties, and excellent fatigue resistance, heat resistance, and corrosion resistance, and a method for preparing the same.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a multi-element alloy material is prepared from the following components, by weight, 0.01-0.03% of ：Al 1wt％-5wt％、Mo 3wt％-5wt％、Ag 0.01wt％-0.05wt％、Hf0.03wt％-0.05wt％、V 0.2wt％-0.5wt％、Os 0.001wt％-0.003wt％、Ta 0.01wt％-0.11wt％、Mn1.2wt％-5wt％、 rare earth elements, 0.01-0.03% of Sc, 0.1-0.3% of other elements, 0.0001-0.0005% of B, 0.001-0.003% of nano zirconium silicide, and the balance Cu and other unavoidable impurities; the impurity content is less than or equal to 0.01wt%.
Preferably, the rare earth element is a mixture formed by mixing Ce, nd and Gd according to the mass ratio of 1 (1-2) (0.8-1.2).
Preferably, the other element is at least one of Nb, co, W, sr, in, ge.
Preferably, the particle size of the nano zirconium silicide is 20-60nm.
Another object of the present invention is to provide a method for preparing the multi-element alloy material, comprising the steps of:
S1, smelting raw materials Cu, al-Cu intermediate alloy, mo-Cu intermediate alloy, ag-Cu intermediate alloy, hf-Cu intermediate alloy, V-Cu intermediate alloy, os-Cu intermediate alloy, ta-Cu intermediate alloy, cu-Mn intermediate alloy, rare earth element-Cu intermediate alloy, cu-Sc intermediate alloy, other element-Cu intermediate alloy and Cu-B intermediate alloy in a vacuum induction furnace, stirring to ensure that alloy components are uniform, doping nano zirconium silicide preheated to 500-600 ℃ into smelted alloy melt, stirring to ensure that the components are uniform, fully standing the stirred alloy melt, and casting to obtain an ingot;
and S2, carrying out hot forging, solution treatment, cold working deformation and aging treatment on the cast ingot prepared in the step S1 in sequence.
Preferably, the casting temperature in step S1 is 1240-1270deg.C.
Preferably, the hot forging temperature in step S2 is 740-950 ℃.
Preferably, the temperature of the solution treatment in the step S2 is 900-960 ℃ and the time is 2-4h.
Preferably, the deformation amount of the cold working deformation in the step S2 is 18-30%.
Preferably, the temperature of the aging treatment in the step S2 is 450-490 ℃ and the aging time is 1-3h.
Compared with the prior art, the invention has the beneficial effects that:
(1) The preparation method of the multi-element alloy material disclosed by the invention can be realized by adopting conventional equipment, the conventional equipment and production line are not required to be modified, the investment is low, the preparation process is simple, the operation is convenient and feasible, the preparation period is short, the yield is high, and the preparation method is suitable for continuous large-scale production.
(2) The invention discloses a multi-element alloy material, which is prepared from the following components, by weight, 0.01-0.03% of ：Al1wt％-5wt％、Mo 3wt％-5wt％、Ag 0.01wt％-0.05wt％、Hf 0.03wt％-0.05wt％、V 0.2wt％-0.5wt％、Os 0.001wt％-0.003wt％、Ta 0.01wt％-0.11wt％、Mn 1.2wt％-5wt％、 rare earth elements, 0.01-0.03% of Sc, 0.1-0.3% of other elements, 0.0001-0.0005% of B, 0.001-0.003% of nano zirconium silicide, and the balance of Cu and other unavoidable impurities; the impurity content is less than or equal to 0.01wt%. Through reasonable selection of the types and the formulas of the components, the components can be matched with each other to act together, so that the multi-component alloy material has the advantages of good wear resistance, good mechanical property, excellent fatigue resistance, excellent heat resistance and excellent corrosion resistance.
(3) The multielement alloy material disclosed by the invention is compounded with the copper alloy base material by adding the nano zirconium silicide, so that the mechanical property and the wear resistance of the product can be further improved; the comprehensive performance and the performance stability of the prepared alloy material are further improved by reasonably selecting specific technological parameters of hot forging, solution treatment, cold working deformation and aging treatment, so that the service life of the alloy material is effectively prolonged.
Detailed Description
In order to better understand the technical solution of the present invention, the following describes the product of the present invention in further detail with reference to examples.
Example 1
A multi-element alloy material is prepared from the following components in percentage by weight: al 1wt%, mo 3wt%, ag0.01wt%, hf 0.03wt%, V0.2 wt%, os 0.001wt%, ta 0.01wt%, mn 1.2wt%, RE 0.01wt%, sc 0.01wt%, other elements 0.1wt%, B0.0001 wt%, nano zirconium silicide 0.001wt%, and Cu and other inevitable impurities for the rest; the impurity content is less than or equal to 0.01wt%.
The rare earth element is a mixture formed by mixing Ce, nd and Gd according to the mass ratio of 1:1:0.8; the other elements are a mixture formed by mixing Nb, co and W according to a mass ratio of 1:2:3; the grain diameter of the nano zirconium silicide is 20nm.
The preparation method of the multi-element alloy material comprises the following steps:
S1, smelting raw materials Cu, al-Cu intermediate alloy, mo-Cu intermediate alloy, ag-Cu intermediate alloy, hf-Cu intermediate alloy, V-Cu intermediate alloy, os-Cu intermediate alloy, ta-Cu intermediate alloy, cu-Mn intermediate alloy, rare earth element-Cu intermediate alloy, cu-Sc intermediate alloy, other element-Cu intermediate alloy and Cu-B intermediate alloy in a vacuum induction furnace, stirring to ensure that alloy components are uniform, doping nano zirconium silicide preheated to 500 ℃ into smelted alloy melt, stirring to ensure that the components are uniform, fully standing the stirred alloy melt, and casting to obtain an ingot;
and S2, carrying out hot forging, solution treatment, cold working deformation and aging treatment on the cast ingot prepared in the step S1 in sequence.
The casting temperature in the step S1 is 1240 ℃; the hot forging temperature in the step S2 is 740 ℃; the temperature of the solution treatment in the step S2 is 900 ℃ and the time is 2 hours; the deformation amount of the cold working deformation in the step S2 is 18%; the temperature of the aging treatment in the step S2 is 450 ℃, and the aging time is 1h.
Example 2
A multi-element alloy material is prepared from the following components in percentage by weight: al 2wt%, mo 3.5wt%, ag0.02wt%, hf 0.035wt%, V0.3 wt%, os 0.0015wt%, ta 0.04wt%, mn 2wt%, RE 0.015wt%, sc 0.015wt%, other elements 0.15wt%, B0.0002 wt%, nano zirconium silicide 0.0015wt%, and Cu and other inevitable impurities for the rest; the impurity content is less than or equal to 0.01wt%.
The rare earth element is a mixture formed by mixing Ce, nd and Gd according to the mass ratio of 1:1.3:0.9; the other elements are a mixture formed by W, sr, in, ge mixing according to the mass ratio of 1:2:0.1:0.1; the grain diameter of the nano zirconium silicide is 30nm.
The preparation method of the multi-element alloy material comprises the following steps:
S1, smelting raw materials Cu, al-Cu intermediate alloy, mo-Cu intermediate alloy, ag-Cu intermediate alloy, hf-Cu intermediate alloy, V-Cu intermediate alloy, os-Cu intermediate alloy, ta-Cu intermediate alloy, cu-Mn intermediate alloy, rare earth element-Cu intermediate alloy, cu-Sc intermediate alloy, other element-Cu intermediate alloy and Cu-B intermediate alloy in a vacuum induction furnace, stirring to ensure that alloy components are uniform, doping nano zirconium silicide preheated to 530 ℃ into smelted alloy melt, stirring to ensure that the components are uniform, fully standing the stirred and doped alloy melt, and casting to obtain an ingot;
and S2, carrying out hot forging, solution treatment, cold working deformation and aging treatment on the cast ingot prepared in the step S1 in sequence.
The casting temperature in the step S1 is 1250 ℃; the hot forging temperature in the step S2 is 780 ℃; the temperature of the solution treatment in the step S2 is 920 ℃, and the time is 2.5h; the deformation amount of the cold working deformation in the step S2 is 23%; the temperature of the aging treatment in the step S2 is 470 ℃, and the aging time is 1.5h.
Example 3
A multi-element alloy material is prepared from the following components in percentage by weight: al 3wt%, mo 4wt%, ag0.035wt%, hf 0.04wt%, V0.35 wt%, os 0.002wt%, ta 0.06wt%, mn 3.8wt%, RE element 0.02wt%, sc 0.02wt%, other elements 0.2wt%, B0.00035 wt%, nano zirconium silicide 0.002wt%, and Cu and other inevitable impurities for the rest; the impurity content is less than or equal to 0.01wt%.
The rare earth element is a mixture formed by mixing Ce, nd and Gd according to the mass ratio of 1:1.5:1; the other elements are a mixture formed by Nb, W, sr, ge mixing according to the mass ratio of 2:1:0.03:0.05; the grain diameter of the nano zirconium silicide is 40nm.
The preparation method of the multi-element alloy material comprises the following steps:
S1, smelting raw materials Cu, al-Cu intermediate alloy, mo-Cu intermediate alloy, ag-Cu intermediate alloy, hf-Cu intermediate alloy, V-Cu intermediate alloy, os-Cu intermediate alloy, ta-Cu intermediate alloy, cu-Mn intermediate alloy, rare earth element-Cu intermediate alloy, cu-Sc intermediate alloy, other element-Cu intermediate alloy and Cu-B intermediate alloy in a vacuum induction furnace, stirring to ensure that alloy components are uniform, doping nano zirconium silicide preheated to 560 ℃ into smelted alloy melt, stirring to ensure that the components are uniform, fully standing the stirred alloy melt, and casting to obtain an ingot;
and S2, carrying out hot forging, solution treatment, cold working deformation and aging treatment on the cast ingot prepared in the step S1 in sequence.
The casting temperature in the step S1 is 1255 ℃; the hot forging temperature in the step S2 is 860 ℃; the temperature of the solution treatment in the step S2 is 940 ℃, and the time is 3 hours; the deformation amount of the cold working deformation in the step S2 is 24%; the temperature of the aging treatment in the step S2 is 470 ℃, and the aging time is 2 hours.
Example 4
A multi-element alloy material is prepared from the following components in percentage by weight: al 4wt%, mo 4.5wt%, ag0.04wt%, hf 0.045wt%, V0.45 wt%, os 0.0025wt%, ta 0.09wt%, mn 4.5wt%, RE 0.025wt%, sc 0.025wt%, other elements 0.25wt%, B0.0004 wt%, nano zirconium silicide 0.0025wt%, and Cu and other inevitable impurities for the rest; the impurity content is less than or equal to 0.01wt%.
The rare earth element is a mixture formed by mixing Ce, nd and Gd according to the mass ratio of 1:1.8:1.1; the other elements are a mixture formed by mixing Nb and Co according to a mass ratio of 3:5; the grain diameter of the nano zirconium silicide is 50nm.
The preparation method of the multi-element alloy material comprises the following steps:
S1, smelting raw materials Cu, al-Cu intermediate alloy, mo-Cu intermediate alloy, ag-Cu intermediate alloy, hf-Cu intermediate alloy, V-Cu intermediate alloy, os-Cu intermediate alloy, ta-Cu intermediate alloy, cu-Mn intermediate alloy, rare earth element-Cu intermediate alloy, cu-Sc intermediate alloy, other element-Cu intermediate alloy and Cu-B intermediate alloy in a vacuum induction furnace, stirring to ensure that alloy components are uniform, doping nano zirconium silicide preheated to 590 ℃ into smelted alloy melt, stirring to ensure that the components are uniform, fully standing the stirred alloy melt, and casting to obtain an ingot;
and S2, carrying out hot forging, solution treatment, cold working deformation and aging treatment on the cast ingot prepared in the step S1 in sequence.
The casting temperature in the step S1 is 1265 ℃; the hot forging temperature in the step S2 is 940 ℃; the temperature of the solution treatment in the step S2 is 950 ℃ and the time is 3.5h; the deformation amount of the cold working deformation in the step S2 is 28%; the temperature of the aging treatment in the step S2 is 485 ℃, and the aging time is 2.5h.
Example 5
A multi-element alloy material is prepared from the following components in percentage by weight: al 5wt%, mo 5wt%, ag0.05wt%, hf 0.05wt%, V0.5 wt%, os 0.003wt%, ta 0.11wt%, mn 5wt%, RE 0.03wt%, sc 0.03wt%, other elements 0.3wt%, B0.0005 wt%, nano zirconium silicide 0.003wt%, cu and other inevitable impurities for the rest; the impurity content is less than or equal to 0.01wt%.
The rare earth element is a mixture formed by mixing Ce, nd and Gd according to the mass ratio of 1:2:1.2; the other elements are a mixture formed by Nb, co, W, sr, in, ge mixing according to the mass ratio of 1:2:1:0.2:0.1:0.2; the grain diameter of the nano zirconium silicide is 60nm.
The preparation method of the multi-element alloy material comprises the following steps:
S1, smelting raw materials Cu, al-Cu intermediate alloy, mo-Cu intermediate alloy, ag-Cu intermediate alloy, hf-Cu intermediate alloy, V-Cu intermediate alloy, os-Cu intermediate alloy, ta-Cu intermediate alloy, cu-Mn intermediate alloy, rare earth element-Cu intermediate alloy, cu-Sc intermediate alloy, other element-Cu intermediate alloy and Cu-B intermediate alloy in a vacuum induction furnace, stirring to ensure that alloy components are uniform, doping nano zirconium silicide preheated to 600 ℃ into smelted alloy melt, stirring to ensure that the components are uniform, fully standing the stirred alloy melt, and casting to obtain an ingot;
and S2, carrying out hot forging, solution treatment, cold working deformation and aging treatment on the cast ingot prepared in the step S1 in sequence.
The casting temperature in the step S1 is 1270 ℃; the hot forging temperature in the step S2 is 950 ℃; the temperature of the solution treatment in the step S2 is 960 ℃, and the time is 4 hours; the deformation amount of the cold working deformation in the step S2 is 30%; the temperature of the aging treatment in the step S2 is 490 ℃, and the aging time is 3 hours.
Comparative example 1
A multi-element alloy material substantially the same as in example 1, except that Os, V and nano zirconium silicide were not added.
Comparative example 2
A multi-element alloy material substantially the same as in example 1 except that Ta, sc, and other elements were not added.
To further illustrate the unexpected positive technical effects obtained by the products of the embodiments of the present invention, the multi-element alloy materials prepared by the embodiments are subjected to the related performance test, the test results are shown in table 1, and the test method is as follows:
(1) Wear resistance: the friction pair is made of GCr15 ball bearing steel by a WTM-2E friction and wear testing machine, the load is 100g, the friction diameter is 8mm, the rotating speed is 200r/min, and the time is 20min; before the experiment, the surface oxide skin to be ground is firstly ground to expose the surface of a flat sample, the disc horizontally rotates, the sample vertically contacts with the disc through the upper clamp, and the upper clamp and the disc are mutually rubbed and abraded. The wear time is 20min to ensure that a stable wear state is achieved; the mass loss is measured by using a Sartius Micr electronic balance, the change of the weight of the sample in the abrasion process is studied, the weight loss rate is calculated, the abrasion resistance of the material is measured, and the smaller the weight loss rate is, the better the abrasion resistance is.
(2) Tensile strength: the test is carried out by referring to the standard GB/T228-2002 'room temperature tensile test method of metallic materials'.
(3) Corrosion resistance: at 25 ℃, the laboratory simulates a 5% NaCl salt spray corrosion environment to measure the corrosion resistance of the alloy material, and the corrosion resistance is measured by the corrosion resistance rate, so that the smaller the corrosion resistance rate is, the better the corrosion resistance is.
(4) Fatigue resistance: and carrying out constant-amplitude fatigue experiments (maximum load 100MPa and minimum load 20 MPa) on the test piece on a AMSLER HFP-422 high-frequency fatigue experiment machine, and recording and counting the fatigue life.
TABLE 1
| Project | Weight loss rate | Fatigue life | Tensile strength of | Corrosion resistance rate |
| Unit (B) | ％ | Ten thousand times | MPa | mm/a |
| Example 1 | 0.23 | 15.2 | 658 | 0.0066 |
| Example 2 | 0.20 | 15.4 | 669 | 0.0053 |
| Example 3 | 0.15 | 15.9 | 688 | 0.0043 |
| Example 4 | 0.13 | 16.2 | 700 | 0.0036 |
| Example 5 | 0.11 | 16.3 | 715 | 0.0032 |
| Comparative example 1 | 0.34 | 14.5 | 602 | 0.0083 |
| Comparative example 2 | 0.42 | 14.0 | 619 | 0.013 |
As can be seen from Table 1, the multi-element alloy material disclosed in the examples of the present invention has more excellent wear resistance, mechanical properties, fatigue resistance and corrosion resistance than the comparative example product. The addition of Os, V, nano zirconium silicide, ta, sc and other elements can be matched with other components, and is beneficial to improving the performance.
The above description is only of the preferred embodiments of the present invention, and is not intended to limit the present invention in any way; those of ordinary skill in the art will readily implement the invention as described above; however, those skilled in the art should not depart from the scope of the invention, and make various changes, modifications and adaptations of the invention using the principles disclosed above; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present invention still fall within the scope of the present invention.
Claims (8)
1. A multi-element alloy material is characterized in that the multi-element alloy material is prepared from the following components, by weight, ：Al1wt％-5wt％、Mo 3wt％-5wt％、Ag 0.01wt％-0.05wt％、Hf 0.03wt％-0.05wt％、V 0.2wt％-0.5wt％、Os 0.001wt％-0.003wt％、Ta 0.01wt％-0.11wt％、Mn 1.2wt％-5wt％、, 0.01 to 0.03 weight percent of other rare earth elements except Sc, 0.01 to 0.03 weight percent of Sc, 0.1 to 0.3 weight percent of other elements, 0.0001 to 0.0005 weight percent of B, 0.001 to 0.003 weight percent of nano zirconium silicide, and the balance of Cu and other unavoidable impurities; the impurity content is less than or equal to 0.01wt%; the other element is at least one of Nb, co, W, sr, in, ge; the rare earth elements except Sc are a mixture formed by mixing Ce, nd and Gd according to the mass ratio of 1 (1-2) (0.8-1.2);
the preparation method of the multi-element alloy material comprises the following steps:
Step D1, smelting raw materials of Cu, al-Cu intermediate alloy, mo-Cu intermediate alloy, ag-Cu intermediate alloy, hf-Cu intermediate alloy, V-Cu intermediate alloy, os-Cu intermediate alloy, ta-Cu intermediate alloy, cu-Mn intermediate alloy, rare earth element-Cu intermediate alloy except Sc, cu-Sc intermediate alloy, other element-Cu intermediate alloy and Cu-B intermediate alloy in a vacuum induction furnace, stirring to ensure that the alloy components are uniform, doping nano zirconium silicide preheated to 500-600 ℃ into the smelted alloy melt, stirring to ensure that the components are uniform, fully standing the stirred alloy melt, and casting to obtain an ingot;
and D2, carrying out hot forging, solution treatment, cold working deformation and aging treatment on the cast ingot prepared in the step D1 in sequence.
2. The multi-component alloy material of claim 1, wherein the nano-zirconium silicide has a particle size of 20-60nm.
3. A method of producing a multi-element alloy material according to any one of claims 1 to 2, comprising the steps of:
S1, smelting raw materials Cu, al-Cu intermediate alloy, mo-Cu intermediate alloy, ag-Cu intermediate alloy, hf-Cu intermediate alloy, V-Cu intermediate alloy, os-Cu intermediate alloy, ta-Cu intermediate alloy, cu-Mn intermediate alloy, rare earth element-Cu intermediate alloy except Sc, cu-Sc intermediate alloy, other element-Cu intermediate alloy and Cu-B intermediate alloy in a vacuum induction furnace, stirring to ensure that the alloy components are uniform, doping nano zirconium silicide preheated to 500-600 ℃ into a smelted alloy solution, stirring to ensure that the components are uniform, fully standing the stirred alloy solution, and casting to obtain an ingot;
and S2, carrying out hot forging, solution treatment, cold working deformation and aging treatment on the cast ingot prepared in the step S1 in sequence.
4. A method of producing a multi-component alloy material as claimed in claim 3 wherein the casting temperature in step S1 is 1240-1270 ℃.
5. The method of producing a multi-component alloy material as claimed in claim 3, wherein the hot forging temperature in step S2 is 740 to 950 ℃.
6. The method of producing a multi-element alloy material according to claim 3, wherein the solution treatment in step S2 is performed at a temperature of 900 to 960 ℃ for a time of 2 to 4 hours.
7. A method of producing a multi-element alloy material as claimed in claim 3 wherein the cold working deformation in step S2 is 18 to 30%.
8. The method of producing a multi-element alloy material according to claim 3, wherein the aging treatment in step S2 is performed at a temperature of 450 to 490 ℃ for an aging time of 1 to 3 hours.
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