CN101775520A - Method for preparing high-performance Cu-Fe deformation in-situ composite material by magnetic field treatment - Google Patents
Method for preparing high-performance Cu-Fe deformation in-situ composite material by magnetic field treatment Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 49
- 229910017827 Cu—Fe Inorganic materials 0.000 title claims abstract description 33
- 239000002131 composite material Substances 0.000 title claims abstract description 31
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 31
- 239000010949 copper Substances 0.000 claims abstract description 38
- 229910052802 copper Inorganic materials 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 34
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 33
- 230000032683 aging Effects 0.000 claims abstract description 22
- 238000005266 casting Methods 0.000 claims abstract description 17
- 238000009749 continuous casting Methods 0.000 claims abstract description 12
- 238000002360 preparation method Methods 0.000 claims abstract description 10
- 238000003723 Smelting Methods 0.000 claims abstract description 9
- 239000000956 alloy Substances 0.000 claims description 57
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 54
- 229910045601 alloy Inorganic materials 0.000 claims description 49
- 229910052742 iron Inorganic materials 0.000 claims description 23
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 20
- 238000005098 hot rolling Methods 0.000 claims description 17
- 229910052799 carbon Inorganic materials 0.000 claims description 14
- 238000005097 cold rolling Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000010791 quenching Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 10
- 230000000171 quenching effect Effects 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 claims description 9
- 229910052727 yttrium Inorganic materials 0.000 claims description 9
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 9
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 8
- 229910052684 Cerium Inorganic materials 0.000 claims description 8
- 229910052796 boron Inorganic materials 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 8
- 150000002910 rare earth metals Chemical class 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 229910052709 silver Inorganic materials 0.000 claims description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 6
- 238000000137 annealing Methods 0.000 claims description 6
- 230000005674 electromagnetic induction Effects 0.000 claims description 6
- 239000004332 silver Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 229910052746 lanthanum Inorganic materials 0.000 claims description 5
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims description 5
- 229910001316 Ag alloy Inorganic materials 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000010946 fine silver Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 claims 2
- 239000006104 solid solution Substances 0.000 abstract description 11
- 239000000835 fiber Substances 0.000 abstract description 6
- 238000007711 solidification Methods 0.000 abstract description 4
- 230000008023 solidification Effects 0.000 abstract description 4
- 230000001737 promoting effect Effects 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 4
- 238000003801 milling Methods 0.000 abstract 2
- 239000013078 crystal Substances 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000009826 distribution Methods 0.000 abstract 1
- 238000005242 forging Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 description 16
- 238000003483 aging Methods 0.000 description 13
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000005275 alloying Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- FZQBLSFKFKIKJI-UHFFFAOYSA-N boron copper Chemical compound [B].[Cu] FZQBLSFKFKIKJI-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 210000001787 dendrite Anatomy 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- 229910052758 niobium Inorganic materials 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000010944 silver (metal) Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910017770 Cu—Ag Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910001257 Nb alloy Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000002001 electrolyte material Substances 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012821 model calculation Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 230000005501 phase interface Effects 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
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- 238000012827 research and development Methods 0.000 description 1
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- 238000010583 slow cooling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
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Abstract
The invention provides a method for preparing a high-performance Cu-Fe deformation in-situ composite material by magnetic field treatment, which is characterized in that the Cu-Fe deformation in-situ composite material in the method is finally prepared into a formed copper material through technical process flows of material proportioning, smelting, casting or continuous casting, magnetic field control solidification, hot forging or hot milling, solid solution treatment, cold milling, cold pulling and magnetic field ageing control. The magnetic field is exerted in the ingot casting solidification process, the solidification of the Cu-Fe deformation in-situ composite material is controlled, Fe dendritic crystals carry out extremely obvious thinning, and the Fe aliquation is reduced, so the material disperses and distributes the uniform and fine Fe fiber phase in a base body after the subsequent cold deformation processing, and the intensity of the material is greatly improved. The magnetic field is exerted in the ageing process treatment process for promoting the Fe separation, increasing the separation amount of Fe particles, reducing the separation phase dimension and promoting the separation phase dispersion distribution, so the conductivity of the material is greatly improved, and the intensity of the material is further improved. The preparation process is simple, and the cost is low. The invention is applicable to the preparation of the high-performance Cu-Fe deformation in-situ composite material or other similar materials.
Description
Technical field
The present invention relates to a kind of method of utilizing magnetic field treatment to prepare the Cu-Fe deformation in-situ composite material, belong to the nonferrous materials technical field.
Background technology
The high strength and high conductivity Cu alloy material is the structure function material with good comprehensive physicals and mechanical property, is widely used in fields such as electronics, information, traffic, the energy, metallurgy, electromechanics.Along with science and technology and development of modern industry, to the demands for higher performance of copper and copper alloy.When the components and parts of making large-scale integrated circuit lead frame, electric railway contact wire, high-strength magneticfield coil, high-voltage switch gear spring piece, microwave tube and aerospace vehicle etc. all require material to keep excellent conductivity, has higher intensity.The high strength and high conductivity Cu alloy material that exploration has good comprehensive physicals and mechanical property has become the hot topic that world today's Cu alloy material develops.
The scholar Bevk of Harvard in 1978 etc. find the Cu-20wt%Nb alloy cast ingot first after a large amount of distortion, and Nb can form the fiber that aligns in the copper matrix, and the intensity of material can surpass 2000MPa, and specific conductivity is near 70%IACS.The fibrous tissue of this class matrix material original position in the material preparation process forms, so be referred to as the deformation copper-based in-situ composite material, its maximum characteristics are to have the intensity of superelevation and good specific conductivity coupling.Follow-up studies show that, the alloy that the Ag of magnesium-yttrium-transition metal Cr, the W of Cu and b.c.c., Mo, V, Fe etc. and f.c.c. forms has similar tissue characteristic and mechanical property, but conductivity of electrolyte materials exists than big-difference with the difference of alloying element kind.Though the research of deformation copper-based in-situ composite material has obtained a large amount of achievements in research so far, existing research concentrates on Cu-Nb and Cu-Ag in-situ composite, and reason is that the intensity and the specific conductivity of Cu-Fe in-situ composite is starkly lower than other material.Yet Nb and Ag are precious metals, and the fusing point of Nb is up to 2648 ℃, and there are bigger non-miscible gap again in liquid Cu and Nb, have therefore limited the technical scale preparation of this class novel material and use.The raw material sources of Cu-Fe are wide by contrast, and the cost of material is low, and the fusing point of Fe is relatively low, and non-miscible gap of liquid Fe and Cu is less, and the Cu-Fe mother alloy is easy to prepare.Therefore, if can improve the intensity and the specific conductivity of Cu-Fe material, it has more development potentiality in technical scale preparation and application facet.
A large amount of experimental studies show: satisfy the Hall-Petch relation between the tensile strength of Cu-X in-situ composite and the fiber spacing: σ=k λ
-1/2, slope k is relevant with the biphase shearing modulus, and the shearing modulus of second phase is high more, and the strengthening effect of material is good more; And the resistivity of material can be according to the shunt circuit Model Calculation
[3]: 1/ ρ
C=f
Cu/ ρ
Cu+ f
X/ ρ
X, f in the formula
CuAnd f
XBe respectively copper matrix and X volume percent mutually.Verhoeven and Karasek point out that the resistance of copper matrix is mainly caused by four kinds of scattering mechanisms: phon scattering, and dislocation scattering, the scattering of phase interface scattering and solid solution impurity, wherein interface scattering and impurity scattering are the principal elements of decision material electric conductivity.The shearing modulus of Fe and Nb is respectively 81.6GPa and 48.3GPa, the specific conductivity of pure Fe and pure Nb is respectively 0.093/ (μ Ω cm) and 0.0693/ (μ Ω cm), thereby, reinforcement and conductive mechanism according to above-mentioned existing deformation copper-based in-situ composite material can be found, Cu-Fe that volume fraction is identical and Cu-Nb are after the equivalent viscous deformation, and the intensity of Cu-Fe and specific conductivity all should be slightly larger than the Cu-Nb with volume.But, studies show that the intensity of Cu-Fe will be lower than Cu-Nb, specific conductivity is then than the low 25-30%IACS of deformation Cu-Nb.Major cause is: (1) Fe fiber thick relatively and in the copper matrix skewness; (2) velocity of diffusion of Fe in the copper matrix is slow under the low temperature, causes in the room temperature lower substrate Fe content considerably beyond its equilibrium solubility; (3) the Fe atom of solid solution in the copper matrix can cause the strong scattering of electronic wave, seriously reduces the specific conductivity of copper matrix.Data shows that the influence of solid solution Fe atom pairs copper matrix specific conductivity reaches 9.2 μ Ω cm/wt%Fe, promptly every dissolving 0.1wt%Fe, and the specific conductivity of copper matrix will reduce 35%IACS, and solid solution is with the under-effected 1%IACS of the Nb that measures to copper matrix specific conductivity.Therefore, analyze theoretically, the Cu-Fe in-situ composite should have better intensity and conductivity, simultaneously with low cost, be a kind of material that development potentiality is arranged very much, the key of research and development is thick, the skewness and too high these two technical barriers of Fe atom residual quantity in the copper matrix that will solve the Fe fiber.
In recent years, adopt magnetic field to carry out Study on Aging to Cu alloy material a small amount of report is arranged, wherein the paper " the high-intensity magnetic field solid solution aging behavior of Cu-Fe alloy " delivered of " investigation of materials journal " the 23rd the 5th phase of volume carries out different solid solution agings with Cu-15%Fe (massfraction) alloy and handles in high-intensity magnetic field, the ag(e)ing behavio(u)r of research alloy, think in Cu-15%Fe alloy solid solution ageing treatment, to apply high-intensity magnetic field, can promote the nodularization of Fe dendrite; Spheroidization and the slow cooling of high temperature that high-intensity magnetic field quickens Fe dendrite cause Fe dendrite alligatoring effect, influence the pattern of Fe dendrite jointly.But do not see that copper alloy adopts the report of magnetic field treatment when cast or continuous casting and solidifying.
Summary of the invention
The objective of the invention is, the deficiency at existing preparation Cu-Fe deformation in-situ composite material occurs provides a kind of method of utilizing magnetic field treatment to prepare high-performance Cu-Fe deformation in-situ composite material, and the material of preparing not only intensity height but also electrical and thermal conductivity is good.
Technical scheme of the present invention is to separate out by regulation and control solidified structure, increase solid solution, promotion and obtain high-strength highly-conductive Cu-Fe deformation in-situ composite material.
The regulation and control solidified structure is exactly by the control of process of setting and the effect of externally-applied magnetic field are solved nascent mutually thick, the segregation serious problems of Fe, make Fe mutually tiny, be distributed in the copper matrix uniformly, after cold deformation processing, in the copper matrix, form tiny, equally distributed Fe fiber, thereby increase substantially the intensity of material;
Increasing solid solution is that the effect by magnetic field significantly increases the solid solubility of Fe element in the copper matrix in the material solidification process, make material in follow-up timeliness heat treatment process, can separate out Fe strengthening phase how tiny, that disperse distributes, with the intensity of further increase material;
Promoting to separate out is in the ageing treatment process of material, and the effect by magnetic field is effectively separated out the Fe of solid solution, reduces the residual quantity of Fe element in the matrix as far as possible, reaches the purpose of high conduction.
Cu-Fe deformation in-situ composite material of the present invention be by the control of batching, melting, casting or continuous casting, magnetic field solidify, forge hot or hot rolling, solution treatment, cold rolling, cold-drawn, magnetic field control aging technique flow process, obtain the copper material of moulding at last.
The system component of Cu-Fe deformation in-situ composite material of the present invention consists of (by mass percentage):
Iron: 5～18
Silver: 0.01～1.00
Boron: 0.001～0.500
Rare earth or lucium: 0.001～1.000
Copper: surplus
Rare earth in the Cu-Fe deformation in-situ composite material prescription of the present invention is meant metal or alloy or the oxide compound that contains cerium or yttrium or lanthanum element, and lucium is meant alloy or the oxide mixture that contains two kinds or three kinds elements in cerium or yttrium or the lanthanum.
Cu-Fe deformation in-situ composite material of the present invention is by the following steps preparation, as shown in drawings:
1, batching: requirement according to chemical composition, will meet electrolytic copper, pure iron or iron containing alloy, the fine silver of prescription quality per-cent or contain silver alloys, boron-containing alloy, rare earth metal or lucium or contain rare earth alloy and mix, obtain batching;
2, melting: the batching that will prepare is put into intermediate frequency electromagnetic induction furnace or other smelting furnace, copper alloy smelting technology fusing routinely;
3, cast or continuous casting: the molten metal that will melt pours into and obtains pouring into a mould ingot casting (as accompanying drawing 2) in water-cooled punching block, graphite mo(u)ld or other mould; Or on continuous caster, obtain the continuous casting ingot casting;
4, magnetic field control is solidified: apply the AC magnetic field that magneticstrength is 0.01-10T in the process of setting of ingot casting;
5, forge hot or hot rolling: above-mentioned ingot casting is put into heat treatment furnace, be heated to a certain temperature in 500 ℃～1000 ℃ of intervals, be incubated 1～5 hour, forge hot or hot rolling on conventional hot rolls then makes it reach distortion more than 20%;
6, solution treatment: the alloy after forge hot or the hot rolling is packed in the heat treatment furnace, be heated to a certain temperature in 900 ℃～1050 ℃ of intervals, be incubated 0.2～5 hour, carry out quench treatment then;
7, cold rolling: the alloy after will quenching carries out the deformation process more than 20%;
8, annealing: with a certain temperature of the alloy after cold rolling between 200 ℃～700 ℃, be incubated 0.1～3 hour, cold with stove;
9, cold-drawn: the alloy after the anneal is carried out the deformation process of multi-pass more than 20%.
10, magnetic field control ageing treatment: it is that the 0.1-10T uniform magnetic field carries out ageing treatment that alloy is put into magneticstrength, and temperature is 200 ℃～600 ℃ a certain intervals, is incubated 1～24 hour.
The present invention is applicable to the preparation of high-performance Cu-Fe deformation in-situ composite material or analogous material.
Description of drawings
Fig. 1 is preparation technology's flow process of high-performance Cu-Fe deformation in-situ composite material of the present invention
Fig. 2 is the mould in magnetic field
Picture in picture number is: (1) magneticfield coil; (2) cast or mould for continuous casting; B: field direction
Embodiment
Provide following examples in conjunction with content of the present invention:
(1) batching: material chemical composition (mass percent) is got: iron: 8, silver 0.05, boron 0.05, cerium 0.01, residue are copper, starting material use pure iron, fine silver, boron copper alloy, metallic cerium, electrolytic copper, the alloying ingredient method is calculated various raw-material add-ons routinely, obtains batching;
(2) melting: the batching that will prepare is put into the intermediate frequency electromagnetic induction furnace, copper alloy smelting technology fusing routinely 25 minutes;
(3) cast: the molten metal that will melt pours in the graphite mo(u)ld;
(4) magnetic field control is solidified: apply the AC magnetic field that magneticstrength is 0.2T in the process of setting of ingot casting;
(5) hot rolling: above-mentioned cast ingot casting is put into heat treatment furnace, be heated to 880 ℃, be incubated 3 hours, hot rolling on conventional hot rolls then makes it reach 50% distortion;
(6) solution treatment: the alloy after the hot rolling is packed in the heat treatment furnace, be heated to 950 ℃, be incubated 1 hour, cooling fast in the cold water of quenching then;
(7) cold rolling: the alloy after will quenching carries out 80% deformation process;
(8) annealing: with the alloy after cold rolling, be heated to 300 ℃, be incubated 0.5 hour, cold with stove;
(9) cold-drawn: the alloy after will handling carries out the deformation process of multi-pass 80%;
(10) magnetic field control ageing treatment: it is that the uniform magnetic field of 0.5T carries out ageing treatment that alloy is put into magneticstrength, and temperature is 450 ℃, is incubated 1 hour;
The Cu alloy material that makes at last.
Tensile strength 〉=710MPa
Specific conductivity: 〉=60%IACS
(1) batching: material chemical composition (mass percent) is got: iron: 10, silver 0.08, boron 0.05, yttrium 0.05, residue are copper, starting material use pure iron, contain silver alloys, boron copper alloy, metallic yttrium, electrolytic copper, the alloying ingredient method is calculated various raw-material add-ons routinely, obtains batching;
(2) melting: the batching that will prepare is put into the intermediate frequency electromagnetic induction furnace, copper alloy smelting technology fusing routinely 25 minutes;
(3) cast: the molten metal that will melt pours in the water-cooled punching block;
(4) magnetic field control is solidified: apply the AC magnetic field that magneticstrength is 0.5T in the process of setting of ingot casting;
(5) forge hot: above-mentioned pouring cast part is put into heat treatment furnace, be heated to 900 ℃, be incubated 3 hours, hot rolling on conventional hot rolls then makes it reach 40% distortion;
(6) solution treatment: the alloy after the hot rolling is packed in the heat treatment furnace, be heated to 980 ℃, be incubated 1 hour, cooling fast in the cold water of quenching then;
(7) cold rolling: the alloy after will quenching carries out 80% deformation process;
(8) annealing: with the alloy after cold rolling, be heated to 350 ℃, be incubated 0.5 hour, cold with stove;
(9) cold-drawn: the alloy after will handling carries out the deformation process of multi-pass 80%;
(10) magnetic field control ageing treatment: it is that the uniform magnetic field of 1T carries out ageing treatment that alloy is put into magneticstrength, and temperature is 470 ℃, is incubated 1 hour;
The Cu alloy material that makes at last.
Tensile strength: 〉=815MPa
Specific conductivity: 〉=58%IACS
Embodiment 3
(1) batching: material chemical composition (mass percent) is got: iron: 12, silver 0.1, boron 0.1, lanthanum 0.08, residue are copper, starting material use iron containing alloy, contain silver alloys, boron copper alloy, metallic yttrium, electrolytic copper, the alloying ingredient method is calculated various raw-material add-ons routinely, obtains batching;
(2) melting: the batching that will prepare is put into the intermediate frequency electromagnetic induction furnace, copper alloy smelting technology fusing routinely 25 minutes;
(3) cast: the molten metal that will melt pours in the graphite mo(u)ld;
(4) magnetic field control is solidified: apply the AC magnetic field that magneticstrength is 0.8T in the process of setting of ingot casting;
(5) forge hot: above-mentioned pouring cast part is put into heat treatment furnace, be heated to 930 ℃, be incubated 3 hours, hot rolling on conventional hot rolls then makes it reach 40% distortion;
(6) solution treatment: the alloy after the hot rolling is packed in the heat treatment furnace, be heated to 1000 ℃, be incubated 1 hour, cooling fast in the cold water of quenching then;
(7) cold rolling: the alloy after will quenching carries out 80% deformation process;
(8) annealing: with the alloy after cold rolling, be heated to 490 ℃, be incubated 0.5 hour, cold with stove;
(9) cold-drawn: the alloy after will handling carries out the deformation process of multi-pass 80%;
(10) magnetic field control ageing treatment: it is that the uniform magnetic field of 0.1T carries out ageing treatment that alloy is put into magneticstrength, and temperature is 490 ℃, is incubated 1.5 hours;
The Cu alloy material that makes at last.
Tensile strength: 〉=920MPa
Specific conductivity: 〉=56%IACS
Embodiment 4
(1) batching: material chemical composition (mass percent) is got: iron: 15, silver 0.1, boron 0.12, the alloy 0.12 that contains two kinds of elements of yttrium and cerium, residue are copper, starting material use pure iron, fine silver, boron copper alloy, contain alloy, the electrolytic copper of two kinds of elements of yttrium and cerium, the alloying ingredient method is calculated various raw-material add-ons routinely, obtains batching;
(2) melting: the batching that will prepare is put into the intermediate frequency electromagnetic induction furnace, copper alloy smelting technology fusing routinely 25 minutes;
(3) continuous casting: continuous casting on horizontal caster;
(4) magnetic field control is solidified: apply the AC magnetic field that magneticstrength is 0.5T in the process of setting of continuous casting ingot casting;
(5) forge hot: above-mentioned pouring cast part is put into heat treatment furnace, be heated to 950 ℃, be incubated 3 hours, hot rolling on conventional hot rolls then makes it reach 40% distortion;
(6) solution treatment: the alloy after the hot rolling is packed in the heat treatment furnace, be heated to 1000 ℃, be incubated 1 hour, cooling fast in the cold water of quenching then;
(7) cold rolling: the alloy after will quenching carries out 85% deformation process;
(8) annealing: with the alloy after cold rolling, be heated to 500 ℃, be incubated 0.5 hour, cold with stove;
(9) cold-drawn: the alloy after will handling carries out the deformation process of multi-pass 80%;
(10) magnetic field control ageing treatment: it is that the uniform magnetic field of 1T carries out ageing treatment that alloy is put into magneticstrength, and temperature is 500 ℃, is incubated 2 hours;
The Cu alloy material that makes at last.
Tensile strength: 〉=950MPa
Specific conductivity: 〉=54%IACS
Claims (5)
1. method of utilizing magnetic field treatment to prepare high-performance Cu-Fe deformation in-situ composite material, it is characterized in that, in the described method Cu-Fe deformation in-situ composite material be by the control of batching, melting, cast or continuous casting, magnetic field solidify, forge hot or hot rolling, solution treatment, cold rolling, cold-drawn, magnetic field control aging technique flow process, obtain the copper material of moulding at last, its step of preparation process is as follows:
(1) batching: requirement according to chemical composition, will meet electrolytic copper, pure iron or iron containing alloy, the fine silver of prescription quality per-cent or contain silver alloys, boron-containing alloy, rare earth metal or lucium or contain rare earth alloy and mix, obtain batching;
(2) melting: the batching that will prepare is put into intermediate frequency electromagnetic induction furnace or other smelting furnace, copper alloy smelting technology fusing routinely;
(3) cast or continuous casting: the molten metal that will melt pours in water-cooled punching block, graphite mo(u)ld or other mould and to obtain pouring into a mould ingot casting; Or on continuous caster, obtain the continuous casting ingot casting;
(4) magnetic field control is solidified: apply the AC magnetic field that magneticstrength is 0.01-10T in the process of setting of ingot casting;
(5) forge hot or hot rolling: above-mentioned ingot casting is put into heat treatment furnace, be heated to a certain temperature in 500 ℃～1000 ℃ of intervals, be incubated 1～5 hour, forge hot or hot rolling on conventional hot rolls then makes it reach distortion more than 20%;
(6) solution treatment: the alloy after forge hot or the hot rolling is packed in the heat treatment furnace, be heated to a certain temperature in 900 ℃～1050 ℃ of intervals, be incubated 0.2～5 hour, carry out quench treatment then;
(7) cold rolling: the alloy after will quenching carries out the deformation process more than 20%;
(8) annealing: with a certain temperature of the alloy after cold rolling between 200 ℃～700 ℃, be incubated 0.1～3 hour, cold with stove;
(9) cold-drawn: the alloy after the anneal is carried out the deformation process of multi-pass more than 20%.
(10), magnetic field control ageing treatment: alloy is put into magnetic field carry out ageing treatment, temperature is 200 ℃～600 ℃ a certain intervals, is incubated 1～24 hour.
2. a kind of method of utilizing magnetic field treatment to prepare high-performance Cu-Fe deformation in-situ composite material according to claim 1, it is characterized in that the system component of Cu-Fe deformation in-situ composite material of the present invention consists of (by mass percentage): iron: 5～18; Silver: 0.01～1.00; Boron: 0.001～0.500; Rare earth or lucium: 0.001～1.000; Copper: surplus.
3. a kind of method of utilizing magnetic field treatment to prepare high-performance Cu-Fe deformation in-situ composite material according to claim 1, it is characterized in that, rare earth in the described method in the Cu-Fe deformation in-situ composite material prescription is meant metal or alloy or the oxide compound that contains cerium or yttrium or lanthanum element, and lucium is meant alloy or the oxide mixture that contains two kinds or three kinds elements in cerium or yttrium or the lanthanum.
4. a kind of method of utilizing magnetic field treatment to prepare high-performance Cu-Fe deformation in-situ composite material according to claim 1 is characterized in that, applies the AC magnetic field that magneticstrength is 0.01-10T in the process of setting of described ingot casting.
5. a kind of method of utilizing magnetic field treatment to prepare high-performance Cu-Fe deformation in-situ composite material according to claim 1 is characterized in that, described alloy is put into magnetic field, and to carry out the magneticstrength of ageing treatment be the uniform magnetic field of 0.1～10T.
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