CN114864211B - Amorphous alloy with high soft magnetic performance and preparation method thereof - Google Patents
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- 229910000808 amorphous metal alloy Inorganic materials 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title abstract description 13
- 239000000956 alloy Substances 0.000 claims abstract description 24
- 230000006698 induction Effects 0.000 claims abstract description 19
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 62
- 229910052786 argon Inorganic materials 0.000 claims description 31
- 239000002245 particle Substances 0.000 claims description 28
- 239000002994 raw material Substances 0.000 claims description 23
- 229910045601 alloy Inorganic materials 0.000 claims description 22
- 239000010949 copper Substances 0.000 claims description 17
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 239000000155 melt Substances 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 8
- 238000005245 sintering Methods 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 8
- 238000000137 annealing Methods 0.000 claims description 6
- 230000010355 oscillation Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 20
- 238000002844 melting Methods 0.000 description 12
- 230000008018 melting Effects 0.000 description 12
- 238000004321 preservation Methods 0.000 description 7
- 238000005303 weighing Methods 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000005307 ferromagnetism Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910008423 Si—B Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000005300 metallic glass Substances 0.000 description 1
- 229910052752 metalloid Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/153—Amorphous metallic alloys, e.g. glassy metals
- H01F1/15325—Amorphous metallic alloys, e.g. glassy metals containing rare earths
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0611—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a single casting wheel, e.g. for casting amorphous metal strips or wires
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/003—Making ferrous alloys making amorphous alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C45/00—Amorphous alloys
- C22C45/02—Amorphous alloys with iron as the major constituent
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/153—Amorphous metallic alloys, e.g. glassy metals
- H01F1/15341—Preparation processes therefor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C2200/00—Crystalline structure
- C22C2200/02—Amorphous
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Abstract
The invention relates to the field of amorphous alloy materials, in particular to an amorphous alloy with high soft magnetic performance and a preparation method thereof, wherein the structural general formula is as follows: fe 55 Cu 28 Bi 10 In 4 Co x (Mo 0.8 Dy 0.2 ) 3‑x Wherein x is 1-2, the saturation magnetic induction of the amorphous alloy system is more than 1.65T, the coercive force is less than 5A/m, and the saturation magnetostriction coefficient is less than 2.5 multiplied by 10 ‑6 The use requirements of industries such as electronic power, information communication and the like can be met.
Description
Technical Field
The invention relates to the field of amorphous alloy materials, in particular to an amorphous alloy with high soft magnetic performance and a preparation method thereof.
Background
Gubanov theoretically predicted that amorphous alloy has ferromagnetism in the early 60 s of the 20 th century, and Duwez et al prepared Fe-P-C amorphous alloy with excellent soft magnetic performance for the first time in 1967, and attracted extensive attention. Chen et al prepared various Fe-based metallic amorphous strips and wires by using a rapid cooling continuous casting roll method in the early 70 s of the 20 th century. In the next twenty years, various Fe-based metals with ferromagnetism are developed successively, wherein a famous Fe-Si-B alloy system is named as "metallic glass", an Fe-based amorphous alloy has increasingly prominent application value in the field of electronic and power with excellent soft magnetic performance, and military and civil fields such as aerospace and navigation show more requirements on soft magnetic performance and high temperature characteristics, and miniaturization, lightweight and industrialization are developed to require that a material has more excellent soft magnetic performance and higher amorphous forming capability, so that development and preparation of an Fe-based amorphous soft magnetic material with good soft magnetic performance and amorphous forming capability have important practical significance for industrial production and industrial promotion, and in order to improve the amorphous forming capability of an Fe-based amorphous alloy, a common method is to dope a metal or metalloid element with a large atomic radius difference with the Fe element, however, the addition of the elements needs to sacrifice iron content, and thus the reduction of the Fe-based amorphous alloy performance is caused.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the technical problems, the invention provides an amorphous alloy with high soft magnetic performance and a preparation method thereof.
The adopted technical scheme is as follows:
the amorphous alloy with high soft magnetic performance has the structural general formula shown in the following atomic percentage:
Fe 55 Cu 28 Bi 10 In 4 Co x (Mo 0.8 Dy 0.2 ) 3-x
wherein x is 1-2.
Further, x is 1 or 2.
Further, x is 2.
Further, the saturation magnetic induction of the amorphous alloy is more than 1.65T, the coercive force is less than 5A/m, and the saturation magnetostriction coefficient is less than 2.5 multiplied by 10 -6 。
The invention also provides a preparation method of the amorphous alloy with high soft magnetic property, which comprises the following steps:
weighing raw materials according to the proportion in the structural general formula, placing the raw materials into a sintering crucible of a medium-frequency induction furnace, and vacuumizing to 3.2 multiplied by 10 -3 Introducing high-purity argon under Pa for atmosphere protection, adjusting pressure to 0.03-0.05MPa, electrifying to obtain current intensity of 200-300A, melting raw materials repeatedly for 3-5 times to obtain mother alloy ingot, crushing the melted mother alloy ingot into particles with diameter of 5-10mm, cleaning, and dryingAnd (3) drying, remelting the particles in an argon protective atmosphere, spraying the melt onto a copper roller by utilizing the internal and external pressure difference formed by high-pressure airflow after the particles are completely molten, and quickly cooling to obtain the amorphous alloy with high soft magnetic property.
Further, crushing the smelted master alloy ingot into particles with the diameter of 5-10mm, and sequentially carrying out ultrasonic oscillation cleaning on the obtained particles for 20-40min by using acetone and absolute ethyl alcohol.
Further, the rapid cooling is carried out at the speed of 50-100 ℃/min until the temperature is reduced to below 0 ℃, and the temperature is kept for 5-10min and then the room temperature is recovered.
Further, annealing is required after rapid cooling.
Further, the annealing method comprises the following steps:
under the protection of argon, heating to 820-850 ℃, preserving heat for 30-50min, then cooling to 650-700 ℃, preserving heat for 10-30min, and recovering to room temperature.
Further, the annealing method comprises the following steps:
under the protection of argon, heating to 820-850 deg.C at a speed of 20-25 deg.C/min, maintaining for 30-50min, cooling to 650-700 deg.C at a speed of 5-10 deg.C/min, and maintaining for 10-30min to recover to room temperature.
The invention has the beneficial effects that:
the invention provides a structural general formula as follows: fe 55 Cu 28 Bi 10 In 4 Co x (Mo 0.8 Dy 0.2 ) 3-x The iron-based amorphous alloy has higher saturation magnetic induction and lower coercive force, so the inventor changes the structural composition of the iron-based amorphous alloy and obtains the amorphous alloy with better soft magnetic property by adjusting the element composition, and the developed amorphous alloy system has the saturation magnetic induction of more than 1.65T, the coercive force of less than 5A/m and the saturation magnetostriction coefficient of less than 2.5 multiplied by 10 -6 The use requirements of industries such as electronic power, information communication and the like can be met.
Drawings
Fig. 1 is an XRD pattern of the amorphous alloys prepared in examples 1-6 of the present invention, and it can be seen from fig. 1 that the diffraction patterns have no sharp characteristic diffraction peak but only broad diffuse scattering peak, which indicates that the amorphous alloys prepared in the present invention are completely amorphous structures, the alloy atomic arrangement is disordered in a long range, and no obvious crystallized phase exists.
Detailed Description
The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are conventional products which are not indicated by manufacturers and are commercially available.
Example 1:
the high soft magnetic performance amorphous alloy has the following structural general formula:
Fe 55 Cu 28 Bi 10 In 4 Co 2 (Mo 0.8 Dy 0.2 ) 1
the preparation method comprises the following steps:
weighing raw materials according to the proportion in the structural general formula, placing the raw materials into a sintering crucible of a medium-frequency induction furnace, and vacuumizing to 3.2 multiplied by 10 -3 Charging high-purity argon under Pa for atmosphere protection, adjusting pressure to 0.05MPa, electrifying to obtain 300A current intensity, melting raw materials repeatedly for 5 times to obtain a master alloy ingot, crushing the melted master alloy ingot into particles with the diameter of 5-10mm, ultrasonically oscillating and cleaning the obtained particles sequentially with acetone and absolute ethyl alcohol for 30min and drying, remelting the particles in argon protective atmosphere, spraying a melt onto a copper roller with the rotating speed of 55m/s by using the internal and external pressure difference formed by high-pressure argon after complete melting, reducing the temperature to-5 ℃ at the speed of 80 ℃/min, recovering the room temperature after heat preservation for 10min, heating to 850 ℃ at the speed of 25 ℃/min under the protection of argon, reducing the temperature to 680 ℃ at the speed of 10 ℃/min after heat preservation for 40min, and recovering the room temperature at the speed of 20min to obtain the high-soft magnetic amorphous alloy with the saturation magnetic induction of 1.72T, the coercive force of 2.8A/m and the saturation magnetostriction coefficient of 2.42 multiplied by 10 -6 。
Example 2:
the high soft magnetic property amorphous alloy has the following structural general formula:
Fe 55 Cu 28 Bi 10 In 4 Co 2 (Mo 0.8 Dy 0.2 ) 1
the preparation method comprises the following steps:
weighing raw materials according to the proportion in the structural general formula, placing the raw materials into a sintering crucible of a medium-frequency induction furnace, and vacuumizing to 3.2 multiplied by 10 -3 Introducing high-purity argon under Pa for atmosphere protection, adjusting pressure to 0.05MPa, electrifying to obtain current intensity of 300A, repeatedly melting the raw materials for 5 times to obtain a master alloy ingot, crushing the melted master alloy ingot into particles with the diameter of 5-10mm, ultrasonically oscillating and cleaning the obtained particles for 40min by using acetone and absolute ethyl alcohol in sequence, drying, remelting the particles in argon protective atmosphere, spraying a melt onto a copper roller with the rotating speed of 55m/s by using the internal and external pressure difference formed by high-pressure argon after complete melting, reducing the temperature to-5 ℃ at the speed of 100 ℃/min, recovering the room temperature after heat preservation for 10min, heating to 850 ℃ at the speed of 25 ℃/min under the protection of argon, reducing the temperature to 700 ℃ at the speed of 10 ℃/min after heat preservation for 50min, and recovering the room temperature at the temperature for 30min to obtain the amorphous alloy with high soft magnetic performance, wherein the saturation magnetic induction intensity is 1.69T, the coercive force is 3.2A/m, and the saturation magnetostriction coefficient is 2.48 multiplied by 10 -6 。
Example 3:
the high soft magnetic performance amorphous alloy has the following structural general formula:
Fe 55 Cu 28 Bi 10 In 4 Co 2 (Mo 0.8 Dy 0.2 ) 1
the preparation method comprises the following steps:
weighing raw materials according to the proportion in the structural general formula, placing the raw materials into a sintering crucible of a medium-frequency induction furnace, and vacuumizing to 3.2 multiplied by 10 -3 Introducing high-purity argon under Pa for atmosphere protection, adjusting pressure to 0.03MPa, electrifying to obtain current intensity of 200A, melting raw materials repeatedly for 3 times to obtain mother alloy ingot, crushing the melted mother alloy ingot into particles with diameter of 5-10mm, ultrasonically oscillating and cleaning the obtained particles with acetone and absolute ethyl alcohol for 20min in sequence, drying, remelting the particles in argon protective atmosphere, and spraying the melt to a rotating speed of 55m & ltSUB & gt & lt/SUB & gt by using internal and external pressure difference formed by high-pressure argon after complete meltingCooling to-5 ℃ at a speed of 50 ℃/min on a copper roller of s, preserving heat for 5min, then recovering the room temperature, heating to 820 ℃ at a speed of 20 ℃/min under the protection of argon, preserving heat for 30min, then cooling to 650 ℃ at a speed of 5 ℃/min, preserving heat for 10min, and recovering the room temperature to obtain the amorphous alloy with high soft magnetic performance, wherein the saturation magnetic induction intensity of the amorphous alloy is 1.67T, the coercive force is 3.3A/m, and the saturation magnetostriction coefficient is 2.24 multiplied by 10 -6 。
Example 4:
the high soft magnetic property amorphous alloy has the following structural general formula:
Fe 55 Cu 28 Bi 10 In 4 Co 2 (Mo 0.8 Dy 0.2 ) 1
the preparation method comprises the following steps:
weighing raw materials according to the proportion in the structural general formula, placing the raw materials into a sintering crucible of a medium-frequency induction furnace, and vacuumizing to 3.2 multiplied by 10 -3 Introducing high-purity argon under Pa for atmosphere protection, adjusting pressure to 0.05MPa, electrifying to obtain current intensity of 200A, repeatedly melting the raw materials for 5 times to obtain a master alloy ingot, crushing the melted master alloy ingot into particles with the diameter of 5-10mm, ultrasonically oscillating and cleaning the obtained particles for 20min by using acetone and absolute ethyl alcohol in sequence, drying, remelting the particles in argon protective atmosphere, spraying a melt onto a copper roller with the rotating speed of 55m/s by using the internal and external pressure difference formed by high-pressure argon after complete melting, reducing the temperature to-5 ℃ at the speed of 100 ℃/min, recovering the room temperature after 5min, heating to 820 ℃ at the speed of 25 ℃/min under the protection of argon, reducing the temperature to 700 ℃ at the speed of 5 ℃/min after 50min, and recovering the room temperature at the speed of 10min to obtain the high-soft magnetic performance amorphous alloy, wherein the saturation magnetic induction intensity is 1.71T, the coercive force is 4.1A/m, and the saturation magnetostriction coefficient is 2.23 x 10 -6 。
Example 5:
the high soft magnetic property amorphous alloy has the following structural general formula:
Fe 55 Cu 28 Bi 10 In 4 Co 1 (Mo 0.8 Dy 0.2 ) 2
the preparation method comprises the following steps:
weighing raw materials according to the proportion in the structural general formula, placing the raw materials into a sintering crucible of a medium-frequency induction furnace, and vacuumizing to 3.2 multiplied by 10 -3 Charging high-purity argon under Pa for atmosphere protection, adjusting pressure to 0.03MPa, electrifying to obtain current intensity of 300A, melting the raw materials repeatedly for 3 times to obtain a master alloy ingot, crushing the melted master alloy ingot into particles with diameter of 5-10mm, ultrasonically oscillating and cleaning the obtained particles sequentially with acetone and absolute ethyl alcohol for 40min and drying, remelting the particles in argon protective atmosphere, spraying a melt onto a copper roller with rotation speed of 55m/s by using internal and external pressure difference formed by high-pressure argon after complete melting, reducing the temperature to-5 ℃ at the speed of 50 ℃/min, recovering the room temperature after heat preservation for 10min, heating to 850 ℃ at the speed of 20 ℃/min under the protection of argon, reducing the temperature to 650 ℃ at the speed of 10 ℃/min after heat preservation for 30min, and recovering the room temperature after heat preservation for 30min to obtain the high-soft magnetic amorphous alloy with saturation magnetic induction of 1.76T, coercive force of 2.6A/m and saturation magnetostriction coefficient of 2.3 × 10T -6 。
Example 6:
the high soft magnetic property amorphous alloy has the following structural general formula:
Fe 55 Cu 28 Bi 10 In 4 Co 2 (Mo 0.8 Dy 0.2 ) 1
the preparation method comprises the following steps:
weighing raw materials according to the proportion in the structural general formula, placing the raw materials into a sintering crucible of a medium-frequency induction furnace, and vacuumizing to 3.2 multiplied by 10 -3 Introducing high-purity argon under Pa for atmosphere protection, adjusting pressure to 0.05MPa, electrifying to obtain current intensity of 300A, melting raw materials repeatedly for 5 times to obtain mother alloy ingot, crushing the melted mother alloy ingot into particles with diameter of 5-10mm, ultrasonically oscillating and cleaning the obtained particles with acetone and absolute ethyl alcohol for 30min and drying, remelting the particles in argon protective atmosphere, spraying the melt onto a copper roller with rotation speed of 55m/s by using internal and external pressure difference formed by high-pressure argon after complete melting, reducing the temperature to-5 ℃ at the speed of 80 ℃/min, preserving heat for 10min, and recovering room temperature to obtain the final productThe obtained amorphous alloy with high soft magnetic performance has the saturation magnetic induction of 1.65T, the coercive force of 5A/m and the saturation magnetostriction coefficient of 2.5 multiplied by 10 -6 。
The above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The amorphous alloy with high soft magnetic performance is characterized by having the following structural general formula:
Fe 55 Cu 28 Bi 10 In 4 Co x (Mo 0.8 Dy 0.2 ) 3-x
wherein x is 1-2.
2. The highly soft magnetic amorphous alloy according to claim 1, wherein x is 1 or 2.
3. The highly soft magnetic amorphous alloy according to claim 1, wherein x is 2.
4. The highly soft magnetic amorphous alloy according to claim 1, wherein the amorphous alloy has a saturation induction of more than 1.65T, a coercivity of less than 5A/m, and a saturation magnetostriction coefficient of less than 2.5 x 10 -6 。
5. A method for preparing the amorphous alloy with high soft magnetic property as defined in any one of claims 1 to 4, wherein the raw materials are weighed according to the proportion in the general formula, placed in a sintering crucible of a medium frequency induction furnace, and vacuumized to 3.2 x 10 -3 Introducing high-purity argon under Pa to perform atmosphere protection, adjusting pressure to 0.03-0.05MPa, and electrifying to obtainMelting the raw materials for 3-5 times to obtain a master alloy ingot at a current intensity of 200-300A, crushing the melted master alloy ingot into particles with the diameter of 5-10mm, cleaning, drying, remelting the particles in an argon protective atmosphere, spraying the melt onto a copper roller by using the internal and external pressure difference formed by high-pressure airflow after the particles are completely melted, and rapidly cooling to obtain the amorphous alloy with high soft magnetic performance.
6. The method for preparing an amorphous alloy having high soft magnetic properties as defined in claim 5, wherein the melted ingot of the master alloy is crushed into particles having a diameter of 5 to 10mm, and the obtained particles are cleaned by ultrasonic oscillation with acetone and absolute ethyl alcohol in sequence for 20 to 40min.
7. The method for preparing an amorphous alloy with high soft magnetic properties according to claim 5, wherein the rapid cooling is performed at a rate of 50-100 ℃/min down to room temperature.
8. The method for preparing an amorphous alloy having high soft magnetic properties according to claim 5, wherein annealing is further required after the rapid cooling.
9. The method for preparing an amorphous alloy with high soft magnetic properties according to claim 8, wherein the annealing method comprises the following steps:
under the protection of argon, heating to 820-850 ℃, preserving heat for 30-50min, then cooling to 650-700 ℃, preserving heat for 10-30min, and recovering to room temperature.
10. The method for preparing an amorphous alloy with high soft magnetic properties according to claim 9, wherein the annealing method comprises the following steps:
under the protection of argon, heating to 820-850 deg.C at a speed of 20-25 deg.C/min, maintaining for 30-50min, cooling to 650-700 deg.C at a speed of 5-10 deg.C/min, and maintaining for 10-30min to recover to room temperature.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61243152A (en) * | 1985-11-29 | 1986-10-29 | Res Inst Iron Steel Tohoku Univ | High magnetic premeability amorphous alloy and its production |
| JP2016094651A (en) * | 2014-11-14 | 2016-05-26 | 株式会社リケン | Soft magnetic alloy and magnetic part |
| CN109778085A (en) * | 2019-03-14 | 2019-05-21 | 安徽智磁新材料科技有限公司 | Amorphous alloy and preparation method thereof with excellent toughness |
| CN114496439A (en) * | 2020-11-12 | 2022-05-13 | Tdk株式会社 | Soft magnetic alloy, magnetic core, and magnetic component |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61243152A (en) * | 1985-11-29 | 1986-10-29 | Res Inst Iron Steel Tohoku Univ | High magnetic premeability amorphous alloy and its production |
| JP2016094651A (en) * | 2014-11-14 | 2016-05-26 | 株式会社リケン | Soft magnetic alloy and magnetic part |
| CN109778085A (en) * | 2019-03-14 | 2019-05-21 | 安徽智磁新材料科技有限公司 | Amorphous alloy and preparation method thereof with excellent toughness |
| CN114496439A (en) * | 2020-11-12 | 2022-05-13 | Tdk株式会社 | Soft magnetic alloy, magnetic core, and magnetic component |
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