CN106636984A - Iron-based amorphous alloy - Google Patents
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C45/00—Amorphous alloys
- C22C45/02—Amorphous alloys with iron as the major constituent
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Abstract
The invention provides iron-based amorphous alloy shown in formula (I). The percentage content of atoms of a component a is greater than or equal to 81.0% or is smaller than or equal to 83.0%; the percentage content of atoms of a component b is greater than or equal to 0.5% or is smaller than or equal to 4.5%; the percentage content of atoms of a component c is greater than or equal to 12.5% or is smaller than or equal to 16.0%; the percentage content of atoms of a component d is smaller than or equal to 0.4%; the percentage sum of a, b, c and d is 100%; M is an impurity element, The iron-based amorphous alloy provided by the inveniton has the advantages that the saturation magnetic induction intensity is not less than 1.62T; the iron-based amorphous alloy can be used as iron core materials for manufacturing power transformers, power generators and engines; the formula is FeaSibBcMd (I).
Description
This application claims submitting Patent Office of the People's Republic of China, Application No. 201710060805.9, invention on 01 25th, 2017
A kind of priority of the Chinese patent application of entitled " Fe-based amorphous alloy ".
Technical field
The present invention relates to soft magnetic materials technical field, more particularly to a kind of Fe-based amorphous alloy.
Background technology
Fe-based amorphous band is a kind of new energy-saving material, is prepared using quick chilling solidification production technology, this green wood
Expect for transformer core, compared with traditional silicon steel transformer, magnetic history is relatively easy, so as to transformer is greatly lowered
Open circuit loss, if can also reduce discharging CO, SO, NO for oil-immersed type transformerxDeng pernicious gas, it is referred to as " the green material of 21 century
Material ".
At present, both at home and abroad in the preparation process of amorphous transformer, it is common to use the saturation induction density that is be
The Fe-based amorphous band of 1.56T or so.It is Fe-based amorphous to prepare transformation compared with the saturation induction density of the close 2.0T of silicon steel
Have the shortcomings that volume increases during device.In order to strengthen competitiveness of the Fe-based amorphous material in transformer industry, saturation need to be developed
Fe-based amorphous material of the magnetic induction intensity more than 1.6T.
For the non-crystalline material with high saturated magnetic induction is researched and developed, many years are carried out.It is most representative
Be Allied-Signal companies of the U.S. exploitation a trade mark for Metglas2605Co alloy, the saturation magnetic of this alloy
Induction is reached in 1.8T, but its alloy makes its high cost to apply in the industrial production comprising 18% Co elements.
Hitachi Metals discloses the Fe-Si-B- of a kind of HB1 in the Chinese patent application of Publication No. CN1721563A
C alloy, its saturation induction density refer in preparation process by blowing containing C in 1.64T in its disclosed process conditions
Gas and control the technique of strip surface C element content distribution, this will result directly in its product processes condition and is difficult to control to,
Industrial production stability cannot ensure.
Nippon Steel company discloses a kind of Fe-Si-B-P-C alloys in patent CN1356403A, although its saturation
Magnetic induction intensity reaches 1.75T, but because its Fe too high levels amorphous formation ability is poor, causes the nothing in its industrialized production
Method forms amorphous state, and band magnetic property is poor；Working together, on the one hand it does not mention in the patent the problem added with regard to P element, separately
The addition content of one side P element is larger, and with reference to the actual conditions of current ferrophosphorus industry both at home and abroad, the preparation condition of ferrophosphorus is relative
Extensive, impurity content is too high, it is impossible to reach the use condition of non-crystaline amorphous metal.In preparation process, in a large number using normal condition
Ferrophosphorus can cause band crystallization, partially crisp, and poor-performing after being heat-treated.If carrying out industry chemical conversion using this kind of alloying component to produce,
The link of ferrophosphorus refining must be added, on the one hand increase the complexity of technological process, on the other hand need to improve current smelting water
It is flat, cause industrialized production difficulty to increase.
The content of the invention
Present invention solves the technical problem that be that a kind of Fe-based amorphous alloy is provided, the Fe-based amorphous alloy that the application is provided
With high saturated magnetic induction and amorphous formation ability.
In view of this, this application provides Fe-based amorphous alloy of the one kind as shown in formula (I),
FeaSibBcMd(Ⅰ)；
Wherein, a, b, c and d represent respectively atom the ancient philosophers's content of corresponding component；81.0≤a≤83.0,0.5≤b≤
4.5,12.5≤c≤16.0, d≤0.4, a+b+c+d=100；M is impurity element.
Preferably, the saturation induction density >=1.62T of the Fe-based amorphous alloy.
Preferably, the atomic percentage conc of the Fe is 81.3≤a≤82.8.
Preferably, the atomic percentage conc of the Fe is 81.5≤a≤82.5.
Preferably, the atomic percentage conc of the Si is 2.5≤b≤4.2.
Preferably, the atomic percentage conc of the B is 13.0≤c≤15.5.
Preferably, the atomic percentage conc of the B is 13.7≤c≤14.7.
Preferably, in the Fe-based amorphous alloy, a=81.5,2.5≤b≤4.5,14.0≤c≤16.0.
Preferably, in the Fe-based amorphous alloy, a=82,3.0≤b≤4.0,14.0≤c≤15.0.
Preferably, in the Fe-based amorphous alloy, 82.3≤a≤82.8,2.5≤b≤4.5,13.0≤c≤15.0.
Preferably, the Fe-based amorphous alloy that composition meets described in any one of claim 1～10 is prepared into into band, then is entered
Row longitudinally magnetic heat treatment, the band after being heat-treated；The temperature of the heat treatment is 300～360 DEG C, and temperature retention time is 60
～120min, magnetic field intensity is 800～1400m/A.
Preferably, the core loss≤0.1800W/kg of the band after the heat treatment, exciting power≤0.2200VA/
Kg, coercivity≤4A/m.
This application provides one kind such as formula FeaSibBcMdShown Fe-based amorphous alloy, it includes Fe, Si, B, wherein Fe
Element, as ferromagnetic element, is the main source of Fe-based amorphous alloy magnetic, to ensure the high-saturation magnetic induction of non-crystaline amorphous metal
Intensity；Si and B is amorphous formation element, and appropriate content just can guarantee that Fe-based amorphous alloy has preferable amorphous formation energy
Power.The application, using the proportioning mode of the high boron of low silicon, makes Fe-based amorphous alloy have high saturation magnetic strength in high Fe content ranges
Answer intensity and amorphous formation ability.
Description of the drawings
Fig. 1 is the XRD spectrum of the embodiment of the present invention and comparative example different-thickness Fe-based amorphous alloy；
Fig. 2 is the embodiment of the present invention and the magnetic property of comparative example and the graph of a relation of heat treatment temperature；
Fig. 3 is the damage curve comparison diagram under the conditions of the 50Hz of the embodiment of the present invention and comparative example.
Specific embodiment
For a further understanding of the present invention, the preferred embodiment of the invention is described with reference to embodiment, but
It should be appreciated that these descriptions are simply to further illustrate the features and advantages of the present invention, rather than to the claims in the present invention
Limit.
The embodiment of the invention discloses Fe-based amorphous alloy of the one kind as shown in formula (I),
FeaSibBcMd(Ⅰ)；
Wherein, a, b, c and d represent respectively atom the ancient philosophers's content of corresponding component；81.0≤a≤83.0,0.5≤b≤
4.5,12.5≤c≤16.0, d≤0.4, a+b+c+d=100；M is impurity element.
According to atomic percentage, its chemical composition expression formula is Fe to the Fe-based amorphous alloy of the applicationaSibBcMd, wherein
M is inevitable impurity element, and the atomic ratio content of wherein a, b, c is respectively：81.0≤a≤83.0,0.5≤b≤4.5,
12.5≤c≤16.0；Remaining is d, d≤0.4.The present invention limits its atomic percentage conc by the above-mentioned element of addition, makes iron
Base noncrystal alloy has preferable comprehensive magnetic energy.
Specifically, Fe elements are ferromagnetic element in the Fe-based amorphous alloy, are the main of Fe-based amorphous alloy magnetic
Source, high Fe contents make Fe-based amorphous alloy have the important leverage of high saturated magnetic induction.The original of Fe described herein
Sub- percentage composition is 81.0～83.0, and in embodiment, the atomic percentage conc of the Fe is 81.3～82.8, more specifically,
The atomic percentage conc of the Fe is 81.5～82.5, more specifically, the atomic percentage conc of the Fe is 81.3,81.45,
81.5th, 81.7,81.85,82.05,82.30,82.42,82.5,82.6,82.65,82.80 or 82.9.The content of the Fe surpasses
Crossing 83.0 can cause the amorphous formation ability of alloy to decline, and increase direct motion difficulty and production cost, be difficult to industrial production.
The Si elements and B element are used as amorphous formation element, and it is non-to be that alloy system can be formed under industrial process conditions
Brilliant necessary condition.The content of Si is 0.5～4.5 in the application, and in embodiment, the content of the Si is 2.5～4.2, more
Specifically, the content of the Si be 2.75,2.8,2.85,3.02,3.1,3.3,3.5,3.7,3.8,3.95,4.0,4.12,
4.2nd, 4.28,4.3,4.45 or 4.5.The atomic percentage conc of Si is less than 0.5, then amorphous formation ability can be caused to decline, and can also
Band magnetic property is caused to decline.The content of B is 12.5～16.0 in the application, and in a particular embodiment, the content of the B is
13.0≤c≤15.5, in a particular embodiment, the content of the B is 13.7≤c≤14.7；In some specific embodiments, institute
State B content be 13.2,13.3,13.5,13.8,13.9,14.0,14.1,14.2,14.5,14.8,14.9,15.1,15.2 or
15.5.The atomic percentage conc of B is more than 16.0, then alloying component deviates eutectic point, and the amorphous formation ability for making alloy declines.
M is impurity element, and its content is certainly more low better, therefore, the application is not specifically limited the content of M, only
Will its≤0.4.
In some specific embodiments, in the amorphous fe-base alloy, a=81.5,2.5≤b≤4.5,14.0≤c≤
16.0；In some specific embodiments, in the Fe-based amorphous alloy, a=82,3.0≤b≤4.0,14.0≤c≤15.0；
In some specific embodiments, in the Fe-based amorphous alloy, 82.3≤a≤82.8,2.5≤b≤4.5,13.0≤c≤15.0.
Therefore, the component and content of the Fe-based amorphous alloy of the application is amorphous from raising magnetic induction intensity, raising respectively
The reasonable combination of difficulty is prepared into ability and reduction, and defines a kind of high saturated magnetic induction Fe-based amorphous alloy.
The preparation method of herein described Fe-based amorphous alloy, comprises the following steps：
According to formula FeaSibBcFe-based amorphous alloy atomic percent dispensing, the raw material after dispensing is carried out into melting, will
Single roller rapid quenching is carried out after liquation heating and heat preservation after melting, iron-based amorphous alloy ribbon material is obtained.
During Fe-based amorphous alloy is prepared, the application employs this area conventional technique means, is prepared for this
Apply for the Fe-based amorphous alloy of concrete composition.For its preparation method is with regard to dispensing and the process of melting, the application is concrete to its
Operational means is not particularly illustrated.In fusion process, the temperature of the melting is 1300～1600 DEG C, the time is 80～
130min.After melting, the application will adopt single roller rapid quenching after the liquation heating and heat preservation after melting, and obtain Fe-based amorphous
Alloy strip steel rolled stock.The temperature of the intensification is preferably 1350～1550 DEG C, and the time of the insulation is preferably 90～120min.It is described
The spray band temperature of single roller rapid quenching is 1350～1450 DEG C, and chill roll linear velocity is 20～30m/s.After single roller rapid quenching, this
Application has obtained iron-based amorphous alloy ribbon material, is completely amorphous state, and its critical thickness is at least 45 μm, and strap toughness compared with
Good, doubling 180 degree is continuous.The amorphous formation ability (GFA) of alloy is referred to and can be obtained amorphous under certain preparation condition
The size of state alloy, size is bigger, and amorphous formation ability is stronger.For amorphous band, critical thickness is exactly that to evaluate its non-
One important indicator of brilliant Forming ability, faces that thickness is bigger, and amorphous formation ability is stronger.For the purpose of the present invention, its critical thickness
At least 45 μm, for the industrialized production of this product has sizable preparation surplus, reduce in its course of industrialization to cold
But the requirement of equipment.For the application of amorphous band, tough fragility is an important application index, because of band answering in next step
With during, need to be sheared, if band fragility is larger, the fragment in shear history can be caused to increase, can seriously be affected iron
The shaping of core and the assembling of transformer.Band of the present invention its toughness preferably, can doubling 180 degree constantly, in follow-up shear history
Produce without fragment.
The thickness of iron-based amorphous alloy ribbon material prepared by the application is 23～32 μm, and width is 100～300mm.For non-
For the material of crystal zone, tape thickness is one of the important parameter for affecting its core loss, and this is also that amorphous band is excellent in terms of open circuit loss
In the principal element of silicon steel sheet.The core loss of soft magnetic materials mainly includes three parts：Magnetic hystersis loss, eddy-current loss and residue
Loss.And the size of thickness directly affects the size of eddy-current loss, for magnetic material, whirlpool electricity is occurred at neticdomain wall
Stream, the flowing of vortex flow, in the contrary magnetic flux of the flow direction that each moment can produce with external magnetic field is produced, more in material
Portion, this reverse effect is stronger, causes magnetic induction intensity and magnetic field intensity seriously uneven along sample in cross section.Here it is soft
The effect of the reason for magnetic material will make strip-reduction vortex.But for amorphous band is not more Bao Yuehao, band is thinner
The abrasion of cutter can be increased during the shearing of follow-up iron core, increase band group number, and then improve the cost of iron core.It is comprehensive
Close and consider two above aspect, the selection that the application passes through preparation technology is prepared for the Fe-based amorphous conjunction that thickness is 23～32 μm
Gold ribbon material.At present, the width of band general on market is 142mm, 170mm, 213mm, and the wider preparation of the width of band is difficult
Degree is bigger.
The application is heat-treated after iron-based amorphous alloy ribbon material is obtained, and the temperature of the heat treatment is 300～
360 DEG C, temperature retention time is 60～120min, and magnetic field intensity is 800～1400A/m.Amorphous, nano crystal soft magnetic material magnetic property
In addition to itself alloying component, Technology for Heating Processing is also a key factor to influence factor.In general, can be with by annealing
The stress of amorphous magnetic material is eliminated, coercivity is reduced, magnetic conductivity is improved, excellent magnetic property is obtained.For Fe-based amorphous band
For material, its Technology for Heating Processing mainly includes three parameters：Holding temperature, temperature retention time and magnetic field intensity.Firstly for insulation
Temperature have to be lower than crystallization temperature, once being higher than crystallization temperature, amorphous band can occur crystallization, and magnetic property drastically deteriorates, this
Bright its crystallization temperature of the alloy is respectively less than 500 DEG C.On the premise of less than crystallization temperature, suitable holding temperature interval right and wrong
Crystal zone material obtains the guarantee of fine magnetic property.The research of the application shows：The core loss of band, exciting power and heat treatment
The relation of holding temperature is that this two parameters have the trend for first reducing increasing afterwards, i.e., for this as holding temperature is improved
For bright, when holding temperature is less than 300 DEG C or during more than 360 DEG C, can all there is the phenomenon of penalty, 300～360 DEG C it
Between can obtain qualified magnetic property.Secondly, for temperature retention time, its principle is similar to holding temperature, there is a suitable time zone
Between, temperature retention time is too short or long, the performance that the present invention can not be optimal.Finally, suitable magnetic field intensity is material
Magnetized necessary guarantee.It is that fixed-direction, the magnetic field of fixing intensity promote to the main cause that non-crystalline material carries out magnetic-field annealing
The magnetic domain of material is deflected to magnetic direction, reduces the magnetic anisotropy of material, optimizes soft magnet performance.For the present invention, when
When magnetic field intensity is less than 800A/m, material magnetization process is incomplete, it is impossible to reach optimal effect, as magnetic field intensity ＞ 1400A/
During m, completely, magnetic property will not optimize material magnetization because of the increase of magnetic field intensity, and the difficulty of heat treatment process can be increased on the contrary
And cost.
Core loss P≤the 0.1800W/kg of Fe-based amorphous band of the present invention after annealing, exciting power Pe≤
0.2200VA/kg, coercivity H≤4A/m.Coercivity is an important indicator for evaluating soft magnetic materials performance, and coercivity is less,
Soft magnet performance is better.For the amorphous band of distribution transformer industry is applied to, the parameter for evaluating its magnetic property is mainly wrapped
Containing two parameters：Core loss, exciting power.This two parameters are less, better to the performance of follow-up iron core and transformer.Cause
This, Fe-based amorphous alloy prepared by the application can be applicable on the core material of transformer, engine, generator.
For a further understanding of the present invention, the Fe-based amorphous alloy provided the present invention with reference to embodiment and its preparation
Method is described in detail, and protection scope of the present invention is not limited by the following examples.
By FeaSibBcdMfAlloy composition carry out dispensing, using intermediate frequency smelting furnace by the raw material metal remelting (temperature of melting
It is 80～130min to spend for 1300～1600 DEG C, temperature retention time), molten steel is gone out after the completion of melting to intermediate frequency bottom brickwork, heating and heat preservation
(1350～1550 DEG C are warming up to, be incubated 90～120min) after calmness, (spray band temperature is 1350～1450 using single roller rapid quenching
DEG C, chill roll linear velocity is 20～30m/s) method be prepared for width for 142mm, thickness is 23～28 μm of Fe-based amorphous width
Band.List in table 1 alloying component of example of the present invention and comparative example, saturation induction density value (Bs), exciting power (Pe) with
Core loss (P)；Wherein embodiment 1～15 is the embodiment of the present invention, and comparative example 16,17 is comparative example.
The magnetic property tables of data of the embodiment of the present invention of table 1 and comparative example
Remarks：Adopt during heat treatment for loop sample：Internal diameter 50.5mm, 52.5～54.5mm of external diameter, test condition：
1.35T/50Hz.The temperature being heat-treated in the application is 300～360 DEG C, and temperature retention time is 60～120min, and magnetic field intensity is
800～1400A/m.
As can be seen from the above embodiments, the Fe-based amorphous alloy of the embodiment of the present invention can obtain preferable saturation magnetic strength
Answer intensity, numerical value to be not less than 1.62T, be the normal of 1.56T more than the conventional use of saturation induction density of current power transformer
Advise Fe-based amorphous material (comparative example 16).The raising of saturation induction density can further optimize the design of transformer core, drop
The volume of low transformer, reduces cost.It can also be seen that the alloying component for meeting example of the present invention has preferable magnetic from table 2
Performance, under conditions of 50Hz, 1.35T, the exciting power≤0.2200VA/kg of the iron core after heat treatment, core loss≤
0.1800W/kg, compared with conventional non-crystalline material (comparative example 16), has reached use requirement.
Fig. 2 is exemplary embodiments of the present invention and the magnetic property of comparative example and the graph of a relation of heat treatment temperature, ■ in Fig. 2 (a)
Curve is the exciting power of embodiment 2 and the relation curve of heat treatment temperature, ● curve is the exciting power and heat of embodiment 10
The relation curve for the treatment of temperature, ▲ curve is the exciting power of embodiment 15 and the relation curve of heat treatment temperature,Curve is
The exciting power of comparative example 16 and the relation curve of heat treatment temperature, in Fig. 2 (b) ■ curves for embodiment 2 core loss with
The relation curve of heat treatment temperature, ● curve is the core loss of embodiment 10 and the relation curve of heat treatment temperature, ▲ curve
The relation curve of core loss and heat treatment temperature for embodiment 15,Core loss and heat treatment of the curve for comparative example 16
The relation curve of temperature；As shown in Figure 2, alloy of the present invention at least 20 DEG C, there is stable magnetic within the scope of wider temperature
Can, i.e., the fluctuation of exciting power (Pe) and core loss (P) is in the range of ± 0.01.Compared with the amorphous band of conventional 1.56T,
Its optimum treatment temperature is low at least 20 DEG C, can reduce the temperature requirements to Equipment for Heating Processing, increases Equipment for Heating Processing
Service life, reduces the cost of heat treatment process indirectly.
Fig. 3 be typical case's example of the invention with the 50Hz of comparative example under the conditions of damage curve comparison diagram, ■ curves in Fig. 3
For the damage curve of embodiment 2, ● curve for embodiment 10 damage curve, ▲ curve for embodiment 15 damage curve,
Curve is the iron loss curve of comparative example 16；From the figure 3, it may be seen that alloy of the present invention and conventional Fe-based amorphous contrast, in higher work
Make magnetic it is close under the conditions of, have preferable performance advantage, that is to say, that prepared by the Fe-based amorphous material prepared by alloying component of the present invention
Iron core and transformer can run under the conditions of higher work magnetic is close.
The explanation of above example is only intended to help and understands the method for the present invention and its core concept.It should be pointed out that right
For those skilled in the art, under the premise without departing from the principles of the invention, the present invention can also be carried out
Some improvement and modification, these are improved and modification is also fallen in the protection domain of the claims in the present invention.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope for causing.
Claims (12)
1. Fe-based amorphous alloy of the one kind as shown in formula (I),
FeaSibBcMd(Ⅰ)；
Wherein, a, b, c and d represent respectively atom the ancient philosophers's content of corresponding component；81.0≤a≤83.0,0.5≤b≤4.5,
12.5≤c≤16.0, d≤0.4, a+b+c+d=100；M is impurity element.
2. Fe-based amorphous alloy according to claim 1, it is characterised in that the saturation induction of the Fe-based amorphous alloy
Intensity >=1.62T.
3. Fe-based amorphous alloy according to claim 1, it is characterised in that the atomic percentage conc of the Fe is 81.3≤
a≤82.8。
4. Fe-based amorphous alloy according to claim 1, it is characterised in that the atomic percentage conc of the Fe is 81.5≤
a≤82.5。
5. Fe-based amorphous alloy according to claim 1, it is characterised in that the atomic percentage conc of the Si is 2.5≤b
≤4.2。
6. Fe-based amorphous alloy according to claim 1, it is characterised in that the atomic percentage conc of the B is 13.0≤c
≤15.5。
7. Fe-based amorphous alloy according to claim 1, it is characterised in that the atomic percentage conc of the B is 13.7≤c
≤14.7。
8. Fe-based amorphous alloy according to claim 1, it is characterised in that in the Fe-based amorphous alloy, a=81.5,
2.5≤b≤4.5,14.0≤c≤16.0.
9. Fe-based amorphous alloy according to claim 1, it is characterised in that in the Fe-based amorphous alloy, a=82,3.0
≤ b≤4.0,14.0≤c≤15.0.
10. Fe-based amorphous alloy according to claim 1, it is characterised in that in the Fe-based amorphous alloy, 82.3≤a
≤ 82.8,2.5≤b≤4.5,13.0≤c≤15.0.
11. Fe-based amorphous alloys according to any one of claim 1～10, it is characterised in that composition is met into right will
Ask the Fe-based amorphous alloy described in 1～10 any one to be prepared into band, then carry out longitudinally magnetic heat treatment, after being heat-treated
Band；The temperature of the heat treatment is 300～360 DEG C, and temperature retention time is 60～120min, and magnetic field intensity is 800～1400m/
A。
12. Fe-based amorphous alloys according to claim 11, it is characterised in that the iron core of the band after the heat treatment is damaged
Consumption≤0.1800W/kg, exciting power≤0.2200VA/kg, coercivity≤4A/m.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107799258A (en) * | 2016-09-07 | 2018-03-13 | 天津大学 | Cobalt base amorphous magnetically soft alloy material of iron of high saturated magnetic induction and preparation method thereof |
| CN108018504A (en) * | 2017-12-21 | 2018-05-11 | 青岛云路先进材料技术有限公司 | A kind of Fe-based amorphous alloy and preparation method thereof |
| EP3584350A4 (en) * | 2017-07-31 | 2020-03-18 | Qingdao Yunlu Advanced Materials Technology Co., Ltd. | Iron-based amorphous alloy |
| CN110983112A (en) * | 2019-12-30 | 2020-04-10 | 华南理工大学 | Cobalt-based amorphous soft magnetic alloy for precise current detection and preparation method thereof |
| WO2020125094A1 (en) * | 2018-12-17 | 2020-06-25 | 青岛云路先进材料技术股份有限公司 | Iron-based amorphous alloy strip material and method for fabrication thereof |
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| CN103155054A (en) * | 2010-09-09 | 2013-06-12 | 梅特格拉斯公司 | Ferromagnetic amorphous alloy ribbon with reduced surface protrusions, method of casting and application thereof |
| CN104745972A (en) * | 2013-12-27 | 2015-07-01 | 井上明久 | High magnetic flux density soft magnetic amorphous alloy with high ductility and high workability |
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| CN107799258A (en) * | 2016-09-07 | 2018-03-13 | 天津大学 | Cobalt base amorphous magnetically soft alloy material of iron of high saturated magnetic induction and preparation method thereof |
| EP3584350A4 (en) * | 2017-07-31 | 2020-03-18 | Qingdao Yunlu Advanced Materials Technology Co., Ltd. | Iron-based amorphous alloy |
| CN108018504A (en) * | 2017-12-21 | 2018-05-11 | 青岛云路先进材料技术有限公司 | A kind of Fe-based amorphous alloy and preparation method thereof |
| US11970761B2 (en) | 2017-12-21 | 2024-04-30 | Qingdao Yunlu Advanced Materials Technology Co., Ltd. | Iron-based amorphous alloy and preparation method therefor |
| WO2020125094A1 (en) * | 2018-12-17 | 2020-06-25 | 青岛云路先进材料技术股份有限公司 | Iron-based amorphous alloy strip material and method for fabrication thereof |
| CN110983112A (en) * | 2019-12-30 | 2020-04-10 | 华南理工大学 | Cobalt-based amorphous soft magnetic alloy for precise current detection and preparation method thereof |
| CN110983112B (en) * | 2019-12-30 | 2021-11-02 | 华南理工大学 | Cobalt-based amorphous soft magnetic alloy for precise current detection and preparation method thereof |
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