CN105861958B - A kind of inexpensive high magnetic conduction iron-based amorphous and nanocrystalline soft magnetic alloy and preparation method thereof - Google Patents
A kind of inexpensive high magnetic conduction iron-based amorphous and nanocrystalline soft magnetic alloy and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a kind of inexpensive high magnetic conduction iron-based amorphous and nanocrystalline soft magnetic alloy and preparation method thereof, the molecular formula of the magnetically soft alloy is FeaSibBcMdCueNbfM’g, wherein M is Al or Zn, M ' and one or more in Y, Gd or Er, a, b, c, d, e, f, g are mass percent, and span is respectively：79≤a≤88.5,8≤b≤11,0.05≤c≤2,0.8≤d≤1.5,0.7≤e≤2.5,2≤f≤4,0.008≤g≤0.02.The magnetically soft alloy have concurrently high magnetic permeability, high Bs, low-coercivity and it is low-loss on the basis of, production cost is reduced by using cheap Al or Zn parts substitution copper, the content for reducing Nb and doping trace rare-earth metal, the high magnetic conduction iron-based amorphous and nanocrystalline soft magnetic alloy of low cost is obtained by the simple preparation method of technique disclosed by the invention.
Description
Technical field
The invention belongs to magnetically soft alloy material technical field, and in particular to a kind of inexpensive Fe-based amorphous nanometer of high magnetic conduction
Brilliant magnetically soft alloy and preparation method thereof.
Background technology
Soft magnetic materials is a kind of conventional functional material, has been obtained widely in industrial circles such as electric power, motor and electronics
Using.Since 19th century, magnetically soft alloy has obtained significant progress, successively generates electrical pure iron, silicon steel, permalloy, iron
The a series of soft magnetism such as aluminium alloy, sendust, ferrocobalt, soft magnetic ferrite and Fe based amorphous nano magnetically soft alloys closes
Gold.
Iron-based amorphous and nanocrystalline soft magnetic alloy has high resistance, high magnetic permeability, low iron loss and higher saturation flux density,
Since FDAC Yoshizawa in 1988 et al. has found Finemet magnetically soft alloys, Fe-based nanocrystalline magnetically soft alloy obtains
Extensive concern, particularly Finemet alloys are with its excellent soft magnetism combination property, relatively low industrial cost, simple preparation
Condition, it is set to have obtained certain application in electron and electrician industry.But this iron-based amorphous and nanocrystalline soft magnetic alloy and work
The silicon steel commonly used in industry is compared, and still there is a big difference on saturation induction density Bs, therefore, it is necessary to prepares with high saturation magnetic
The nano-crystal soft magnetic alloy of flux density could further meet industrial needs.
In recent years, Fe-Si-B-P-Cu and Fe-Si-B-C-Cu Sol-Gel magnetically soft alloy is successively found that, its
Saturation flux density can reach 1.8T, the saturation flux density of the raising nano-crystal soft magnetic alloy of high degree, still, this conjunction
Fe content is higher in gold, and amorphous formation ability is weaker, and preparation condition requires harsh so that and copper roller rotating speed is higher when getting rid of band, and
Purity requirement to raw material is higher, and this just have impact on its application in the industrial production.There are some researches show substitute Fe-Si- with Nb
P in B-P-Cu, P splashing in process of production, the uniformity enhanced product performance can be avoided, while add after Nb can be with
Improve the inoxidizability of alloy, improve alloy amorphous Forming ability and crystal grain thinning.But Nb price is costly, original be present
The problem of material cost is high, it is unfavorable for industrialized production.CN103924169A is reported on Fe-Si-B-P-Cu-Nb alloys basis
Upper reduction Nb content is simultaneously adulterated micro rare-earth yttrium and is modified, and to reduce production cost, while nanometer crystal alloy product has
There are excellent permeability and low-coercivity, but its saturation induction density Bs (during H=5A/m) is only more than 1.0T or so, still needs to
Further improve.
As can be seen here, a kind of high magnetic conducting nanocrystalline magnetically soft alloy for easily realizing industrialized production is developed, for nanocrystalline
The development and application of magnetically soft alloy is significant.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, it is an object of the invention to propose it is a kind of have into
Point reasonable in design, rare earth element content is relatively low, prepares that handling process is simple and product has the iron-based amorphous nanometer crystalline of high magnetic conduction
Magnetically soft alloy；Another object of the present invention is to the preparation method for the nano-crystal soft magnetic alloy for proposing to have above-mentioned property.
Technical scheme：To realize the first above-mentioned purpose, the present invention uses following technical scheme：
A kind of inexpensive high magnetic conduction iron-based amorphous and nanocrystalline soft magnetic alloy, molecular formula FeaSibBcMdCueNbfM’g, its
Middle M is Al or Zn, M ' one or more in Y, Gd or Er, a, b, c, d, e, f, g be mass percent, and span is divided
It is not：79≤a≤88.5,8≤b≤11,0.05≤c≤2,0..8≤d≤1.5,0.7≤e≤2.5,2≤f≤4,0.008≤
g≤0.02。
Preferably, the high saturated magnetic induction Bs of the magnetically soft alloy is 1.632~1.74T.
Preferably, the nanocrystalline structure of the magnetically soft alloy includes noncrystal substrate and nanocrystal phase, described nanometer
Crystal grain is mutually body-centred cubic α-Fe, and its average grain size is less than 15nm, wherein it is preferred that crystallite dimension is 11nm.
As the second object of the present invention, present invention also offers above-mentioned inexpensive high magnetic conduction iron-based amorphous nanometer crystalline is soft
The preparation method of magnetic alloy, comprises the following steps：
(1) raw material ratio：By the Y in pure iron, polysilicon, ferro-boron, fine copper, fine aluminium or pure zinc, ferro-niobium, rare earth metal,
Gd and/or Er carries out dispensing according to the mass percent of each element in the magnetically soft alloy molecular formula, obtains foundry alloy raw material；
(2) foundry alloy raw material melting：By the foundry alloy raw material matched successively according to a small amount of pure iron and ferro-niobium, a small amount of ferro-boron
With Y, Gd and/or Er in a small amount of pure iron, copper and aluminium or copper and zinc, rare earth element, a small amount of ferro-boron and a small amount of pure iron, polysilicon,
Stacked with the order of surplus pure iron in mid-frequency melting furnace from bottom to top, add in mid-frequency melting furnace to enter under atmospheric environment
Row melting, the starting monitor system of mid-frequency melting furnace is 35KW, and 130-140KW is risen to 0.5-2KW/min speed, is closed to female
Golden raw material is completely melt, stops heating, steelmaking slag agent is covered on the alloy solution of melting, slag is dragged for after 5-10min, then
Mid-frequency melting furnace is overturn and repeats melting 3-5 times, the power of subsequent mid-frequency melting furnace is rapidly decreased to originate monitor system, and alloy is molten
The mother alloy ingot of composition uniformity is obtained after liquid solidification；
(3) weight in the Frequency Induction Heating smelting furnace of pocket builder is added after the mother alloy ingot for obtaining step (2) is broken
It is molten, anti-oxidation on the alloy solution of melting is covered in using steelmaking slag agent in reflow process, drags for slag, then by alloy solution
Sprayed coating is on atwirl copper Kun, and with 106 DEG C/s cooldown rate, quickly the obtained amorphous alloy ribbon of band is got rid of in cooling；
(4) amorphous alloy ribbon is put into annealing furnace and carries out annealing, be cooled to after room temperature and both obtain product.
Protected during step (2) or step (3) described melting using steelmaking slag agent covering.In melting
Cheng Zhong, some elements such as Y etc. is oxidized easily, therefore the melting of many non-crystaline amorphous metals is carried out in vacuum environment, increase
Technology difficulty, the present invention are covered on the foundry alloy solution of melting using steelmaking slag agent, i.e. achievable in atmospheric environment
The purpose of anti-oxidation, slag can be dragged for after steelmaking slag agent is covered into 5-10min.
The number of melt back described in step (2) is 3-5 times, and the time of each melting is 45-60min, wherein it is preferred that
Melting 4 times.
Preferably, the width of the amorphous alloy ribbon in the step (3) is 10 ± 1mm, thickness is 36 ± 1 μm.This
Contained trace rare-earth element such as Y, can strengthen the toughness of alloy material, increase the flowing of molten steel in the alloying component of invention
Property.
Preferably, the condition of the annealing in the step (4) is：Inert gas atmosphere isothermal annealing or
Hydrogen reducing atmosphere isothermal annealing.Before inert gas or hydrogen is passed through, vacuum is evacuated to 1 × 10 in annealing furnace-3Pa, it is passed through lazy
Property gas or hydrogen, the pressure in annealing furnace is 0.02-0.05MPa.
Preferably, the temperature of the isothermal annealing is 500-550 DEG C, time 0.5-2h.Quick quenching is extremely after annealing
Less than 200 DEG C come out of the stove it is air-cooled to room temperature.
Beneficial effect：Compared with prior art, the present invention has advantages below：
(1) iron-based amorphous and nanocrystalline soft magnetic alloy of the invention is on the basis of Fe-Si-B-Cu-Nb five elements, be with the addition of
Inexpensive Al or Zn and Cu acts synergistically provides position for nanocrystal, and the addition of trace rare-earth element is acted on into one with a small amount of Nb
Step improves nanocrystalline crystallization temperature, improves magnetically soft alloy amorphous formation ability, while suppresses brilliant in nanocrystalline forming process
Grain length is big, has refined crystal grain, and by rational composition design, resulting product has high saturated magnetic induction, low coercive
Power and high magnetic permeability；
(2) present invention reduces expensive Nb and rare earth element content, cost of material to reduce, preparation process condition letter
Single, obtained properties of product uniformity is excellent；
(3) the super chilling technique of present invention use, production process is short, simple production process, the reality compared with conventional metallurgical industry
Production energy-saving is showed.
Embodiment
The present invention is further explained with reference to embodiment.
Embodiment 1Fe82Si10B1.0Al1.2Cu2.3Nb3.5Y0.01Preparation
According to the molecular formula Fe of amorphous and nanocrystalline soft magnetic alloy82Si10B1.0Al1.2Cu2.3Nb3.5Y0.01The quality of middle each element
Percentage carries out dispensing, obtains foundry alloy raw material.By the good foundry alloy raw material of said ratio in mid-frequency melting furnace from bottom to
Top sequentially adds a small amount of pure iron and ferro-niobium, a small amount of ferro-boron and a small amount of pure iron, copper and aluminium, Y, a small amount of ferro-boron and a small amount of pure iron, more
Crystal silicon and surplus pure iron.The starting monitor system of mid-frequency melting furnace is 35KW, and 130- is risen to 0.5-2KW/min speed
140KW, it is completely melt to foundry alloy raw material, stops heating, steelmaking slag agent is covered on the alloy solution of melting, 5-
Slag is dragged for after 10min, then mid-frequency melting furnace is overturn and repeats melting 3-5 times, the power of subsequent mid-frequency melting furnace has been rapidly decreased to
Beginning monitor system, the mother alloy ingot of composition uniformity is obtained after alloy solution solidification.
After mother alloy ingot is crushed, the Frequency Induction Heating melting refusion in the stove of pocket builder is added, is adopted in reflow process
Anti- oxidation on the alloy solution of melting is covered in steelmaking slag agent, drags for slag, is then quickly rotating alloy solution sprayed coating
Copper Kun on, with 106 DEG C/s cooldown rate quickly cooling get rid of band be made amorphous alloy ribbon.Then above-mentioned alloy thin band is put
Enter in vacuum annealing furnace, be evacuated to 1 × 10-3Pa, it is then charged with Ar or N20.02-0.05MPa, 500 DEG C of annealing 2h, annealing
Afterwards it is quick it is sudden be cooled to less than 200 DEG C and come out of the stove air-cooled to room temperature, both obtain product.
Prepared amorphous alloy ribbon is amorphous structure, and strip width is 10 ± 1mm, and thickness of strip is 36 ± 1 μm,
Band flat smooth edge is without breach and burr.The alloy thin band occurs receiving after annealing in amorphous phase matrix
Meter Jing Xiang, this nanometer of crystalline phase is body-centred cubic α-Fe, and the crystallite dimension of nanometer crystalline phase is in 11nm or so.Product is through dc magnetization
Specificity analysis instrument measures, and typical nano-crystal soft magnetic alloy feature, initial permeability μ is presented in magnetization curve0(H=0.04A/m
When) it is 14.2 ten thousand Gs/Oe, Bs=1.71T ((during H=5A/m), coercivity HCFor 0.8A/m, using ac magnetization specificity analysis
Instrument determines the magnetically soft alloy and P is lost in 0.88T, 50Hz0.88/50For 0.037W/kg.
Embodiment 2Fe82Si10B1.0Zn1.2Cu2.3Nb3.5Y 0.01Preparation
According to the molecular formula Fe of amorphous and nanocrystalline soft magnetic alloy82Si10B1.0Zn1.2Cu2.3Nb3.5Y 0.01The matter of middle each element
Measure percentage and carry out dispensing, obtain foundry alloy raw material.By the good foundry alloy raw material of said ratio in mid-frequency melting furnace from bottom
To top sequentially add a small amount of pure iron and ferro-niobium, a small amount of ferro-boron and a small amount of pure iron, copper and zinc, Y, a small amount of ferro-boron and a small amount of pure iron,
Polysilicon and surplus pure iron.The starting monitor system of mid-frequency melting furnace is 30KW, and 130- is risen to 0.5-2KW/min speed
140KW, it is completely melt to foundry alloy raw material, stops heating, steelmaking slag agent is covered on the alloy solution of melting, 5-
Slag is dragged for after 10min, then mid-frequency melting furnace is overturn and repeats melting 3-5 times, the power of subsequent mid-frequency melting furnace has been rapidly decreased to
Beginning monitor system, the mother alloy ingot of composition uniformity is obtained after alloy solution solidification.
After mother alloy ingot is crushed, the Frequency Induction Heating melting refusion in the stove of pocket builder is added, is adopted in reflow process
Anti- oxidation on the alloy solution of melting is covered in steelmaking slag agent, drags for slag, is then quickly rotating alloy solution sprayed coating
Copper Kun on, with 106 DEG C/s cooldown rate quickly cooling get rid of band be made amorphous alloy ribbon.Then above-mentioned alloy thin band is put
Enter in vacuum annealing furnace, be evacuated to 1 × 10-3Pa, it is then charged with H20.02-0.05MPa, 500 DEG C of annealing 2h, after annealing soon
Speed is sudden to be cooled to less than 200 DEG C and comes out of the stove air-cooled to room temperature, both obtains product.
Prepared amorphous alloy ribbon is amorphous structure, and strip width is 10 ± 1mm, and thickness of strip is 36 ± 1 μm,
Band flat smooth edge is without breach and burr.The alloy thin band occurs receiving after annealing in amorphous phase matrix
Meter Jing Xiang, this nanometer of crystalline phase is body-centred cubic α-Fe, and the crystallite dimension of nanometer crystalline phase is in 13nm or so.Product is through dc magnetization
Specificity analysis instrument measures, and typical amorphous soft-magnetic alloy feature, initial permeability μ is presented in magnetization curve0(during H=0.04A/m)
For 13.7 ten thousand Gs/Oe, Bs=1.68T (during H=5A/m), coercivity HCFor 0.9A/m, surveyed using ac magnetization specificity analysis instrument
P is lost in 0.88T, 50Hz in the fixed magnetically soft alloy0.88/50For 0.039W/kg.
Embodiment 3Fe84Si9B1.0Al1.5Cu1.0Nb3.5Y 0.01Preparation
According to the molecular formula Fe of amorphous and nanocrystalline soft magnetic alloy84Si9B1.0Al1.5Cu1.0Nb3.5Y 0.01The matter of middle each element
Measure percentage and carry out dispensing, obtain foundry alloy raw material.By the good foundry alloy raw material of said ratio in mid-frequency melting furnace from bottom
To top sequentially add a small amount of pure iron and ferro-niobium, a small amount of ferro-boron and a small amount of pure iron, copper and aluminium, Y, a small amount of ferro-boron and a small amount of pure iron,
Polysilicon and surplus pure iron.The starting monitor system of mid-frequency melting furnace is 40KW, and 130- is risen to 0.5-2Kw/min speed
140KW, it is completely melt to foundry alloy raw material, stops heating, steelmaking slag agent is covered on the alloy solution of melting, 5-
Slag is dragged for after 10min, then mid-frequency melting furnace is overturn and repeats melting 3-5 times, the power of subsequent mid-frequency melting furnace has been rapidly decreased to
Beginning monitor system, the mother alloy ingot of composition uniformity is obtained after alloy solution solidification.
After mother alloy ingot is crushed, the Frequency Induction Heating melting refusion in the stove of pocket builder is added, is adopted in reflow process
Anti- oxidation on the alloy solution of melting is covered in steelmaking slag agent, drags for slag, is then quickly rotating alloy solution sprayed coating
Copper Kun on, with 106 DEG C/s cooldown rate quickly cooling get rid of band be made amorphous alloy ribbon.Then above-mentioned alloy thin band is put
Enter in vacuum annealing furnace, be evacuated to 1 × 10-3Pa, it is then charged with H20.02-0.05MPa, 550 DEG C of annealing 1.5h, after annealing soon
Speed is sudden to be cooled to less than 200 DEG C and comes out of the stove air-cooled to room temperature, both obtains product.
Prepared amorphous alloy ribbon is amorphous structure, and strip width is 10 ± 1mm, and thickness of strip is 36 ± 1 μm,
Band flat smooth edge is without breach and burr.The alloy thin band occurs receiving after annealing in amorphous phase matrix
Meter Jing Xiang, this nanometer of crystalline phase is body-centred cubic α-Fe, and the crystallite dimension of nanometer crystalline phase is in 14nm or so.Product is through dc magnetization
Specificity analysis instrument measures, and typical amorphous soft-magnetic alloy feature, initial permeability μ is presented in magnetization curve0(during H=0.04A/m)
For 14.2 ten thousand Gs/Oe, Bs=1.66T (during H=5A/m), coercivity HCFor 1.0A/m, surveyed using ac magnetization specificity analysis instrument
P is lost in 0.88T, 50Hz in the fixed magnetically soft alloy0.88/50For 0.039W/kg.
Embodiment 4Fe81Si10B2.0Al1.5Cu2.0Nb3.5Y 0.01Er0.008Preparation
According to the molecular formula Fe of amorphous and nanocrystalline soft magnetic alloy81Si10B2.0Al1.5Cu2.0Nb3.5Y 0.01Er0.008In each member
The mass percent of element carries out dispensing, obtains foundry alloy raw material.By the good foundry alloy raw material of said ratio in mid-frequency melting furnace
Sequentially added from bottom to top ferro-niobium and a small amount of pure iron, a small amount of ferro-boron and a small amount of pure iron, copper and aluminium, Y and Er, a small amount of ferro-boron and
A small amount of pure iron, polysilicon and surplus pure iron.The starting monitor system of mid-frequency melting furnace is 40KW, with 0.5-2Kw/min speed
130-140KW is risen to, is completely melt to foundry alloy raw material, stops heating, steelmaking slag agent is covered in the alloy solution of melting
On, slag is dragged for after 5-10min, then mid-frequency melting furnace is overturn and repeats melting 3-5 times, the power of subsequent mid-frequency melting furnace drops rapidly
To starting monitor system, the mother alloy ingot of composition uniformity is obtained after alloy solution solidification.
After mother alloy ingot is crushed, the Frequency Induction Heating melting refusion in the stove of pocket builder is added, is adopted in reflow process
Anti- oxidation on the alloy solution of melting is covered in steelmaking slag agent, drags for slag, is then quickly rotating alloy solution sprayed coating
Copper Kun on, with 106 DEG C/s cooldown rate quickly cooling get rid of band be made amorphous alloy ribbon.Then above-mentioned alloy thin band is put
Enter in vacuum annealing furnace, be evacuated to 1 × 10-3Pa, it is then charged with H20.02-0.05MPa, 550 DEG C of annealing 1.5h, after annealing soon
Speed is sudden to be cooled to less than 200 DEG C and comes out of the stove air-cooled to room temperature, both obtains product.
Prepared amorphous alloy ribbon is amorphous structure, and strip width is 10 ± 1mm, and thickness of strip is 36 ± 1 μm,
Band flat smooth edge is without breach and burr.The alloy thin band occurs receiving after annealing in amorphous phase matrix
Meter Jing Xiang, this nanometer of crystalline phase is body-centred cubic α-Fe, and the crystallite dimension of nanometer crystalline phase is in 11nm or so.Product is through dc magnetization
Specificity analysis instrument measures, and typical amorphous soft-magnetic alloy feature, initial permeability μ is presented in magnetization curve0(during H=0.04A/m)
For 15.3 ten thousand Gs/Oe, Bs=1.74T (during H=5A/m), coercivity HCFor 0.8A/m, surveyed using ac magnetization specificity analysis instrument
P is lost in 0.88T, 50Hz in the fixed magnetically soft alloy0.88/50For 0.035W/kg.
Comparative example 1Fe84Si9B1.0Cu3.5Nb3.5Y 0.01Preparation
(the Fe of comparative example 184Si9B1.0Cu3.5Nb3.5Y 0.01) preparation condition substantially with embodiment 1
(Fe82Si10B1.0Al1.2Cu2.3Nb3.5Y 0.01), 1 difference of comparative example 1 and embodiment is：Substituted in comparative example 1 with Cu
Al mass fraction in embodiment 1, the mass fraction shared by Cu are 3.5%.
Amorphous alloy ribbon prepared by comparative example 1 is amorphous structure, and strip width is 10 ± 1mm, and thickness of strip is
36 ± 1 μm, band flat smooth edge is without breach and burr.The alloy thin band is after annealing, in amorphous phase matrix
There is nanometer crystalline phase, this nanometer of crystalline phase is body-centred cubic α-Fe, and the crystallite dimension of nanometer crystalline phase is in 15nm or so.Product passes through
DC magnetizing characteristic analyzer measures, and typical amorphous soft-magnetic alloy feature, initial permeability μ is presented in magnetization curve0(H=
During 0.04A/m) it is 12.1 ten thousand Gs/Oe, Bs=1.64T (during H=5A/m), coercivity HCIt is special using ac magnetization for 1.1A/m
P is lost in 0.88T, 50Hz in the property analysis-e/or determining magnetically soft alloy0.88/50For 0.040W/kg.
Comparative example 2Fe81Si10B2.0Al1.5Cu2.0Nb3.5Preparation
(the Fe of comparative example 281Si10B2.0Al1.5Cu2.0Nb3.5) preparation condition substantially with embodiment 4
(Fe81Si10B2.0Al1.5Cu2.0Nb3.5Y 0.01Er0.008), 4 differences of comparative example 2 and embodiment are：Institute in comparative example 2
The product of preparation is free of rare earth element.
Amorphous alloy ribbon prepared by comparative example 2 is amorphous structure, and strip width is 10 ± 1mm, and thickness of strip is
36 ± 1 μm, band flat smooth edge is without breach and burr.The alloy thin band is after annealing, in amorphous phase matrix
There is nanometer crystalline phase, this nanometer of crystalline phase is body-centred cubic α-Fe, and the crystallite dimension of nanometer crystalline phase is in 17nm or so.Product passes through
DC magnetizing characteristic analyzer measures, and typical amorphous soft-magnetic alloy feature, initial permeability μ is presented in magnetization curve0(H=
During 0.04A/m) it is 12.7 ten thousand Gs/Oe, Bs=1.66T (during H=5A/m), coercivity HCIt is special using ac magnetization for 1.4A/m
P is lost in 0.88T, 50Hz in the property analysis-e/or determining magnetically soft alloy0.88/50For 0.065W/kg.
Above description is some optimal modes and other embodiment for implementing the present invention, simply to the skill of the present invention
Explanation example effect is played in art design, and it is not intended to limit the scope of the present invention, and those skilled in the art are not departing from
In the spirit and scope of technical solution of the present invention, modify, equivalent substitution or combination, all should fall in protection scope of the present invention
Within.
Claims (7)
- A kind of 1. inexpensive high magnetic conduction iron-based amorphous and nanocrystalline soft magnetic alloy, it is characterised in that：The molecule of the magnetically soft alloy Formula is FeaSibBcMdCueNbfM’g, wherein M is Zn, and one or more of the M ' in Gd or Er, a, b, c, d, e, f, g are matter Percentage is measured, span is respectively：79≤a≤88.5,8≤b≤11,0.05≤c≤2,1.2≤d≤1.5,0.7≤e≤ 2.5,2≤f≤4,0.008≤g≤0.02.
- 2. inexpensive high magnetic conduction iron-based amorphous and nanocrystalline soft magnetic alloy according to claim 1, it is characterised in that：It is described The high saturated magnetic induction Bs of magnetically soft alloy is 1.632~1.74T.
- 3. inexpensive high magnetic conduction iron-based amorphous and nanocrystalline soft magnetic alloy according to claim 1, it is characterised in that：It is described Magnetically soft alloy includes noncrystal substrate and nanocrystal phase, and described nanocrystal is mutually body-centred cubic α-Fe, its average crystal grain Size is less than 15nm.
- 4. a kind of preparation method of inexpensive high magnetic conduction iron-based amorphous and nanocrystalline soft magnetic alloy according to claim 1, It is characterized in that：Comprise the following steps：(1) raw material ratio：By the Gd in pure iron, polysilicon, ferro-boron, fine copper, pure zinc, ferro-niobium, rare earth metal and/or Er according to The mass percent of each element carries out dispensing in the magnetically soft alloy molecular formula, obtains foundry alloy raw material；(2) foundry alloy raw material melting：The foundry alloy raw material matched according to a small amount of pure iron and ferro-niobium, a small amount of ferro-boron and is lacked successively Measure pure iron, copper and aluminium or copper and Gd and/or Er, a small amount of ferro-boron and a small amount of pure iron, polysilicon and surplus in zinc, rare earth element The order of pure iron stacks in mid-frequency melting furnace from bottom to top, adds in mid-frequency melting furnace and is melted under atmospheric environment Refining, the starting monitor system of mid-frequency melting furnace is 35kW, and 130-140kW is risen to 0.5-2kW/min speed, former to foundry alloy Material is completely melt, stops heating, steelmaking slag agent is covered on the alloy solution of melting, slag is dragged for after 5-10min, then by The upset of frequency smelting furnace repeats melting 3-5 times, and the power of subsequent mid-frequency melting furnace is rapidly decreased to originate monitor system, and alloy solution coagulates Gu the mother alloy ingot of composition uniformity is obtained after；(3) the Frequency Induction Heating melting refusion in the stove of pocket builder, weight are added after the mother alloy ingot for obtaining step (2) is broken Anti- oxidation on the alloy solution of melting is covered in using steelmaking slag agent during molten, slag is dragged for, then by alloy solution sprayed coating On atwirl copper Kun, with 106 DEG C/s cooldown rate, quickly the obtained amorphous alloy ribbon of band is got rid of in cooling；(4) amorphous alloy ribbon is put into annealing furnace and carries out annealing, be cooled to after room temperature and both obtain product.
- 5. the preparation method of inexpensive high magnetic conduction iron-based amorphous and nanocrystalline soft magnetic alloy according to claim 4, it is special Sign is：The width of amorphous alloy ribbon in the step (3) is 10 ± 0.1mm, and thickness is 36 ± 1 μm.
- 6. the preparation method of inexpensive high magnetic conduction iron-based amorphous and nanocrystalline soft magnetic alloy according to claim 4, it is special Sign is：The condition of annealing in the step (4) is：Inert gas atmosphere isothermal annealing or hydrogen reducing Atmosphere isothermal annealing.
- 7. the preparation method of the inexpensive high magnetic conduction iron-based amorphous and nanocrystalline soft magnetic alloy according to claim 4 or 6, its It is characterised by：The temperature of the isothermal annealing is 500-550 DEG C, time 0.5-2h.
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| CN107309408B (en) * | 2017-06-28 | 2019-04-05 | 黄毅 | The method that low cost produces high permeability amorphous nanocrystalline alloy band |
| JP7043877B2 (en) * | 2018-02-21 | 2022-03-30 | Tdk株式会社 | Soft magnetic alloys and magnetic parts |
| CN109295385A (en) * | 2018-08-31 | 2019-02-01 | 江西大有科技有限公司 | A kind of low-loss nanometer crystal alloy soft magnetic materials and preparation method thereof |
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| JP7318218B2 (en) * | 2019-01-30 | 2023-08-01 | セイコーエプソン株式会社 | Soft magnetic powders, dust cores, magnetic elements and electronic devices |
| JP7326777B2 (en) * | 2019-03-11 | 2023-08-16 | Tdk株式会社 | Soft magnetic alloys and magnetic parts |
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| CN112281060B (en) * | 2020-10-21 | 2022-07-01 | 江苏大磁纳米材料有限公司 | Tube sealing hydrogenation heat treatment annealing process |
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| CN113025906A (en) * | 2021-03-05 | 2021-06-25 | 江西大有科技有限公司 | Iron-based nanocrystalline alloy material and manufacturing method thereof |
| CN114672742B (en) * | 2022-03-02 | 2023-02-28 | 宁波辰磁电子科技有限公司 | Nanocrystalline alloy magnetic core and preparation method thereof |
| CN115323250B (en) * | 2022-08-19 | 2023-05-26 | 安徽中环软磁科技有限公司 | Preparation process of amorphous nanocrystalline magnetic material |
| CN116344142B (en) * | 2023-03-08 | 2023-12-19 | 国网智能电网研究院有限公司 | Iron-based nanocrystalline magnetically soft alloy and preparation method and application thereof |
| CN117884622B (en) * | 2024-03-14 | 2024-06-14 | 朗峰新材料启东有限公司 | Soft magnetic high-entropy amorphous nanocrystalline powder and preparation method thereof |
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