CN103060722A - Iron-based amorphous or nanocrystalline soft magnetic alloy and preparation method thereof - Google Patents
Iron-based amorphous or nanocrystalline soft magnetic alloy and preparation method thereof Download PDFInfo
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- CN103060722A CN103060722A CN2011103379228A CN201110337922A CN103060722A CN 103060722 A CN103060722 A CN 103060722A CN 2011103379228 A CN2011103379228 A CN 2011103379228A CN 201110337922 A CN201110337922 A CN 201110337922A CN 103060722 A CN103060722 A CN 103060722A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 229910001004 magnetic alloy Inorganic materials 0.000 title claims abstract description 8
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 44
- 239000000956 alloy Substances 0.000 claims abstract description 44
- 230000005291 magnetic effect Effects 0.000 claims abstract description 17
- 238000000137 annealing Methods 0.000 claims abstract description 16
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims abstract description 9
- 230000005484 gravity Effects 0.000 claims abstract description 5
- 238000002074 melt spinning Methods 0.000 claims abstract description 5
- 239000010955 niobium Substances 0.000 claims description 20
- 239000013078 crystal Substances 0.000 claims description 16
- 239000010949 copper Substances 0.000 claims description 13
- 238000002844 melting Methods 0.000 claims description 12
- 230000008018 melting Effects 0.000 claims description 12
- 229910052750 molybdenum Inorganic materials 0.000 claims description 10
- 239000002159 nanocrystal Substances 0.000 claims description 9
- 230000006698 induction Effects 0.000 claims description 8
- 229910052721 tungsten Inorganic materials 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 229910052758 niobium Inorganic materials 0.000 claims description 7
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 6
- 238000005275 alloying Methods 0.000 claims description 6
- 238000001513 hot isostatic pressing Methods 0.000 claims description 6
- 239000011733 molybdenum Substances 0.000 claims description 6
- 239000007858 starting material Substances 0.000 claims description 6
- 238000007669 thermal treatment Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052796 boron Inorganic materials 0.000 claims description 5
- 239000000470 constituent Substances 0.000 claims description 5
- 235000019628 coolness Nutrition 0.000 claims description 5
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 238000003723 Smelting Methods 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 239000000696 magnetic material Substances 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 230000004907 flux Effects 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 11
- 239000005300 metallic glass Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- -1 ferrophosphorus Inorganic materials 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910017082 Fe-Si Inorganic materials 0.000 description 1
- 229910017133 Fe—Si Inorganic materials 0.000 description 1
- 229910008423 Si—B Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007496 glass forming Methods 0.000 description 1
- 239000012761 high-performance material Substances 0.000 description 1
- XEEYBQQBJWHFJM-RNFDNDRNSA-N iron-60 Chemical group [60Fe] XEEYBQQBJWHFJM-RNFDNDRNSA-N 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000007578 melt-quenching technique Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The invention relates to the technical field of soft magnetic materials, and in particular relates to an iron-based amorphous or nanocrystalline soft magnetic alloy and a preparation method of the iron-based amorphous or nanocrystalline soft magnetic alloy which aim at forming nanocrystalline soft magnetic characteristics and good insulating properties when the hot isostatic pressure is the atmospheric pressure; according to the invention, the components of the alloy can be expressed as FeaSibBcCudNb>Mf; the preparation method of the iron-based amorphous or nanocrystalline soft magnetic alloy comprises the following steps that commercially pure metal raw materials are placed in a gravity intermediate frequency furnace to be smelted so as to obtain a master alloy, an amorphous alloy ribbon is prepared by a single roller melt spinning method and then put in a vacuum annealing furnace, when the hot isostatic pressure is the atmospheric pressure, the annealing temperature is 400 to 550 DEG C. According to the invention, the iron-based amorphous or nanocrystalline has a high saturation magnetic flux density of 1.564T and low coercivity of 1.2A/mm. A prepared nanocrystalline alloy strip has excellent flexibility and can be optionally cut.
Description
Technical field
The present invention relates to the soft magnetic materials technical field, particularly relate to a kind of Fe-based amorphous or nano-crystal soft magnetic alloy and preparation method thereof.
Background technology
Non-crystaline amorphous metal claims again metallic glass, is a kind of novel metastable state functional materials that adopts the ultra-high speed solidification technology to be prepared from, and its atomic arrangement is short range order when solid-state, and long-range is unordered.The singularity of non-crystaline amorphous metal structure has given traditional metal materials inaccessible excellent properties.Such as high hardness, intensity, resistivity and wear-resisting, erosion resistance and the excellent advantages such as soft magnetic performance.The meanwhile development of nanotechnology has also promoted the scientific research development of Material Field.Nano crystal material because of grain-size ultra-fine (with electron wavelength, mean free path etc. be the same order of magnitude), a large amount of atoms is distributed on the interface of crystal grain, thereby shows the performance different with non-crystalline material from the conventional crystal material.Such as high strength, high specific heat and good flow shape ability etc.In recent years, people study and find to utilize the Amorphous Crystallization method can prepare nanometer crystal alloy, because it presents excellent magnetic performance, and become the focus of Modern New magneticsubstance research.
Early 1980s, fritz Gleite H has proposed the concept of nano crystal material and has at first successfully developed the artificial nano crystal, experimental result is found this class solid material, and not only intensity is high, and structure and performance all have singularity, from then on the various countries scientist competitively carries out the research-and-development activity of this novel material, and nanometer crystal alloy is described as " novel material of 21 century ".1988, the people such as Yoshizawa of FDAC metal company at first prepared Fe
0.735Cu
0.01Nb
0.03Si
0.135B
0.09Nanometer crystal alloy, and called after Finemet.This iron-base nanometer crystal alloy has caused countries in the world material scholars' extensive concern with the soft magnetic performance of excellence.This is because the constitutional features of iron-based nano material uniqueness is because nanometer crystal alloy has excellent magnetics and physical and mechanical property concurrently on the other hand on the one hand, thereby is that over-all properties and the development high performance material of new generation that improves material created favourable condition.The characteristics of this non-retentive alloy maximum are to have the reduce power consumption suitable with cobalt base amorphous alloy, high magnetic permeability and close to zero magnetostriction coefficient, its saturation induction density has surpassed other soft magnetic materialss of similar performance simultaneously, reaches about 1.2T.This non-retentive alloy is to add a small amount of Cu and Nb on the basis of traditional Fe-Si-B non-crystaline amorphous metal, get by anneal, a large amount of yardsticks the Fe-Si of 10～15nm uniform crystal particles be distributed among the remaining noncrystal substrate, obtained so-called " nanocrystalline " mechanism.The Main Function of this dvielement is that diffusion is slow, suppress growing up of a-Fe particle, thereby guarantee the nano-scale of crystal grain, also can reduce saturation magnetostriction constant simultaneously, enlarge the thermal treatment warm area, improve fragility and processing performance, Cr also has obvious effect to erosion resistance.
Summary of the invention
Fe-based amorphous goods nano-crystal soft magnetic alloy and preparation method that the object of the invention provides and a kind ofly has excellent magnetic characteristics, the manufacture craft relative cost is lower.
Iron-based of the present invention non-(nanometer) peritectic alloy composition (atomic percent) can be expressed as Fe
aSi
bB
cCu
dNb
eM
f, M is Mo or W or Cr, and a, b, c, d, e, f are atomic percent, and variation range is: 0.6≤a≤0.8,0.05≤b≤0.2,0.05≤c≤0.2,0.01≤d≤0.1,0.01≤e≤0.1,0.05≤f≤0.1, and a+b+c+d+e+f=1.
By control alloy speed of cooling and thermal treatment temp and the time, obtain evenly distribute nanometer crystal alloy in the amorphous collective of the different non-crystaline amorphous metal of microtexture or nanocrystal.By content and the thermal treatment process that changes various elements, control the microtexture of non-(nanometer) peritectic alloy, effectively improve and optimized the comprehensive soft magnetic performance of alloy, low-alloyed material cost is significantly fallen simultaneously.
Element B in the alloy, Cu and Nb part are substituted by in molybdenum, tungsten, the chromium element any one or more, and total alternative amount is no more than 10at%.
Alloy is through after the optimization anneal, the gas saturation induction density be 1.564T or more than, coercive force is 1.2A/m or following.
Iron-based of the present invention non-(nanometer) peritectic alloy is to obtain by Composition Design and certain thermal treatment process.Annealing region is 500 ℃-650 ℃, and the optimum annealing temperature of heterogeneity alloy is slightly different.Be under the normal pressure isothermal annealing 1-6 hour at hot isostatic pressing, then be cooled to 200 ℃ of coolings of coming out of the stove.
Preparation method of the present invention at first prepares amorphous alloy ribbon by melt-quenching method, obtains nano structured alloy by these non-crystaline amorphous metal Annealing Crystallizations again.Concrete preparation method is as follows:
The first step is not less than the starting material such as 99.5% technically pure iron, fine copper, pure niobium, pure silicon, ferro-boron, tungsten, molybdenum according to Fe with purity according to mass percent
aSi
bB
cCu
dNb
eM
fAlloying constituent with the atomic percentage conc weigh batching; Place melting in the gravity intermediate frequency furnace, melting atmosphere is normal atmospheric, and furnace pressure is normal pressure; Melting electric current 200A-500A; Each mother alloy melt back 3-6 time, each smelting time is 30-120 minute, to guarantee the homogeneity of alloying constituent;
Second step, the resulting mother alloy of melting is broken, use melt spinning to prepare thickness and be about 20-40 μ m, width and be the amorphous alloy ribbon of 5-150mm.
The 3rd step, put into amorphous alloy ribbon horizontal or ground formula annealing furnace, temperature is transferred to 500 ℃-650 ℃, be under the normal pressure isothermal annealing 1-6 hour at hot isostatic pressing, then be cooled to 200 ℃ of coolings of coming out of the stove.
The atomic percent of each element is iron 60～80at% in the non-crystaline amorphous metal, silicon 5～20at%, boron 5～20at%, copper 1～10at%, niobium 1～10at%, the 0.1～10.0at% such as molybdenum, tungsten, chromium.The subtle change of composition can cause the optimum annealing temperature of non-crystaline amorphous metal to change between 500 ℃ to 650 ℃.
The Fe for preparing according to the method described above
aSi
bB
cCu
dNb
eM
f(M is Mo or W or Cr etc.) non-(nanometer) peritectic alloy has good comprehensive soft magnetic performance, its saturation induction density B
SFor 1.564T or more than, coercive force H
cBe 1.2A/m or following.Among the present invention, the saturation induction density of material adopts vibrating sample magnetometer (VSM) test, and coercive force adopts DC B-H go-and-return measurement instrument to record.
The present invention is applicable to transformer, generator, mutual inductor, Magnetic Sensor, high frequency electric source etc.The present invention is take the soft magnetic performance mechanism of non-(nanometer) peritectic alloy and alloy glass forming ability principle as instructing, at Fe
0.735Cu
0.01Nb
0.03Si
0.135B
0.09Do suitable composition adjustment on the basis of alloy, do not reducing its to improve magnetism of material can prerequisite under, adopting industrial horizontal or ground formula annealing furnace is to heat-treat under the normal pressure at hot isostatic pressing, greatly reduces the development cost of alloy; The microtexture that content by changing various alloying elements and thermal treatment process are controlled this new iron-based non-retentive alloy, thus optimize its performance, and high saturated magnetic induction, low-coercivity are lower.
Description of drawings
For further specifying content of the present invention, below in conjunction with embodiment the present invention is done a detailed description, wherein:
Fig. 1 is Fe of the present invention
aSi
bB
cCu
dNb
eM
fThe magnetics parameter detecting report of non-crystaline amorphous metal;
Fig. 2 is Fe of the present invention
aSi
bB
cCu
dNb
eM
fThe magnetics parameter detecting report of nanometer crystal alloy;
Embodiment
Embodiment 1:
(1) starting material such as technically pure iron, fine copper, pure niobium, pure silicon, ferro-boron, ferrophosphorus, molybdenum that purity are not less than 99.5% (mass percent) are pressed Fe
0.735Si
0.135B
0.09Cu
0.01Nb
0.03-xM
x(x=0.005～0.015) ingredient composition;
(2) starting material that clean up are put into the melting of gravity intermediate frequency furnace and prepared homogeneous chemical composition ground mother alloy ingot;
(3) the resulting mother alloy of melting is broken, use melt spinning to prepare thickness and be about 30 μ m, width and be the amorphous alloy ribbon of 100mm;
(4) adopting horizontal or ground formula annealing furnace, temperature is transferred to 500 ℃-650 ℃, is under the normal pressure isothermal annealing 1-6 hour at hot isostatic pressing, then is cooled to 200 ℃ of coolings of coming out of the stove.
The Fe for preparing according to the method described above
0.735Si
0.135B
0.09Cu
0.01Nb
0.03-xM
xThe saturation induction density B of (x=0.005～0.015) non-(nanometer) peritectic alloy
s=1.564T or more than, coercive force H
c=1.2A/m or following.
Embodiment 2:
(1) starting material such as technically pure iron, fine copper, pure niobium, pure silicon, ferro-boron, ferrophosphorus, molybdenum that purity are not less than 99.5% (mass percent) are pressed Fe
0.735Si
0.135Cu
0.01B
0.09-xNb
0.03-yM
X+y(x=0.005～0.015, y=0.005～0.015) ingredient composition;
(2) starting material that clean up are put into the melting of gravity intermediate frequency furnace and prepared homogeneous chemical composition ground mother alloy ingot;
(3) the resulting mother alloy of melting is broken, use melt spinning to prepare thickness and be about 30 μ m, width and be the amorphous alloy ribbon of 100mm;
(4) adopting horizontal or ground formula annealing furnace, temperature is transferred to 500 ℃-650 ℃, is under the normal pressure isothermal annealing 1-6 hour at hot isostatic pressing, then is cooled to 200 ℃ of coolings of coming out of the stove.The Fe for preparing according to the method described above
0.735Si
0.135Cu
0.01B
0.09-xNb
0.03-yM
X+yThe saturation induction density B of (x=0.005～0.015, y=0.005～0.015) non-(nanometer) peritectic alloy
s=1.564T or more than, coercive force H
c=1.2A/m or following.
Claims (5)
1. a Fe-based amorphous or nano-crystal soft magnetic alloy is characterized in that this alloying constituent is Fe
aSi
bB
cCu
dNb
eM
f, M is Mo or W or Cr, and a, b, c, d, e, f are atomic percent, and variation range is: 0.6≤a≤0.8,0.05≤b≤0.2,0.05≤c≤0.2,0.01≤d≤0.1,0.01≤e≤0.1,0.05≤f≤0.1, and a+b+c+d+e+f=1.
2. Fe-based amorphous or nanometer crystal alloy according to claim 1 it is characterized in that element nb part in the alloy by any or multiple replacement in Mo, W, the Cr element, and total alternative amount is no more than 10at%.
3. Fe-based amorphous or nanometer crystal alloy according to claim 1 is characterized in that the high saturated magnetic induction of 1.564T and the low-coercivity of 1.2A/mm.
4. the preparation method of Fe-based amorphous or nanometer crystal alloy according to claim 1 is characterized in that:
The first step is not less than the starting material such as 99.5% technically pure iron, fine copper, pure niobium, pure silicon, ferro-boron, tungsten, molybdenum according to Fe with purity according to mass percent
aSi
bB
cCu
dNb
eM
fAlloying constituent with the atomic percentage conc weigh batching; Place melting in the gravity intermediate frequency furnace, melting atmosphere is normal atmospheric, and furnace pressure is normal pressure; Melting electric current 200A-500A; Each mother alloy melt back 3-6 time, each smelting time is 30-120 minute, to guarantee the homogeneity of alloying constituent;
Second step, the resulting mother alloy of melting is broken, use melt spinning to prepare thickness and be about 20-40 μ m, width and be the amorphous alloy ribbon of 5-150mm.
The 3rd step, put into amorphous alloy ribbon horizontal or ground formula annealing furnace, temperature is transferred to 500 ℃-650 ℃, be under the normal pressure isothermal annealing 1-6 hour at hot isostatic pressing, then be cooled to 200 ℃ of coolings of coming out of the stove.
5. such as the preparation method of claim 1,2,3,4 described Fe-based amorphous or nanometer crystal alloys, it is characterized in that by control alloy speed of cooling and thermal treatment temp and time, obtain nano crystal structure different can free cutting nanometer crystal alloy.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104451465A (en) * | 2014-12-24 | 2015-03-25 | 江苏奥玛德新材料科技有限公司 | Preparation method of iron-based amorphous nanocrystalline soft magnetic alloy for industrial production |
| CN104802042A (en) * | 2015-04-24 | 2015-07-29 | 天津理工大学 | Method for improving initial permeability and alternating-current magnetic property of amorphous magnetically-soft alloy |
| CN106917042A (en) * | 2017-01-22 | 2017-07-04 | 中国科学院宁波材料技术与工程研究所 | A kind of high frequency high magnetic flux density Fe-based nanocrystalline magnetically soft alloy and preparation method thereof |
| CN107245673A (en) * | 2017-06-15 | 2017-10-13 | 河北工业大学 | Iron-based amorphous nanometer crystalline thin strip magnet and its preparation method and application method |
| CN107309408A (en) * | 2017-06-28 | 2017-11-03 | 黄毅 | The method of the high permeability amorphous nanocrystalline alloy band of low cost production |
| CN107365950A (en) * | 2017-07-24 | 2017-11-21 | 广东咏旺新材料科技有限公司 | Fe Si B Nb Cu are Fe-based amorphous/nanocrystalline magnetically soft alloy material and preparation and Technology for Heating Processing |
| CN109295401A (en) * | 2018-12-11 | 2019-02-01 | 广东工业大学 | A new type of iron-based amorphous nanocrystalline soft magnetic alloy and preparation method thereof |
| CN114927303A (en) * | 2022-06-07 | 2022-08-19 | 中国科学院宁波材料技术与工程研究所 | Nanocrystalline magnetic core, nanocrystalline inductor and preparation method thereof |
| WO2022227425A1 (en) * | 2021-04-25 | 2022-11-03 | 安泰非晶科技有限责任公司 | Amorphous alloy strip and preparation method therefor |
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Cited By (13)
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| CN104451465B (en) * | 2014-12-24 | 2016-06-29 | 江苏奥玛德新材料科技有限公司 | A kind of preparation method for industrial iron-based amorphous and nanocrystalline soft magnetic alloy |
| CN104451465A (en) * | 2014-12-24 | 2015-03-25 | 江苏奥玛德新材料科技有限公司 | Preparation method of iron-based amorphous nanocrystalline soft magnetic alloy for industrial production |
| CN104802042A (en) * | 2015-04-24 | 2015-07-29 | 天津理工大学 | Method for improving initial permeability and alternating-current magnetic property of amorphous magnetically-soft alloy |
| CN106917042A (en) * | 2017-01-22 | 2017-07-04 | 中国科学院宁波材料技术与工程研究所 | A kind of high frequency high magnetic flux density Fe-based nanocrystalline magnetically soft alloy and preparation method thereof |
| CN107245673A (en) * | 2017-06-15 | 2017-10-13 | 河北工业大学 | Iron-based amorphous nanometer crystalline thin strip magnet and its preparation method and application method |
| CN107245673B (en) * | 2017-06-15 | 2018-12-07 | 河北工业大学 | Iron-based amorphous nanometer crystalline thin strip magnet and its preparation method and application method |
| CN107309408B (en) * | 2017-06-28 | 2019-04-05 | 黄毅 | The method that low cost produces high permeability amorphous nanocrystalline alloy band |
| CN107309408A (en) * | 2017-06-28 | 2017-11-03 | 黄毅 | The method of the high permeability amorphous nanocrystalline alloy band of low cost production |
| CN107365950A (en) * | 2017-07-24 | 2017-11-21 | 广东咏旺新材料科技有限公司 | Fe Si B Nb Cu are Fe-based amorphous/nanocrystalline magnetically soft alloy material and preparation and Technology for Heating Processing |
| CN107365950B (en) * | 2017-07-24 | 2019-03-19 | 广东咏旺新材料科技有限公司 | Fe-Si-B-Nb-Cu is Fe-based amorphous/nanocrystalline magnetically soft alloy material and preparation and heat treatment process |
| CN109295401A (en) * | 2018-12-11 | 2019-02-01 | 广东工业大学 | A new type of iron-based amorphous nanocrystalline soft magnetic alloy and preparation method thereof |
| WO2022227425A1 (en) * | 2021-04-25 | 2022-11-03 | 安泰非晶科技有限责任公司 | Amorphous alloy strip and preparation method therefor |
| CN114927303A (en) * | 2022-06-07 | 2022-08-19 | 中国科学院宁波材料技术与工程研究所 | Nanocrystalline magnetic core, nanocrystalline inductor and preparation method thereof |
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