CN103551381A - Method for preparing oriented magnetostriction thin plate through columnar crystal plate blank - Google Patents
Method for preparing oriented magnetostriction thin plate through columnar crystal plate blank Download PDFInfo
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- CN103551381A CN103551381A CN201310533010.7A CN201310533010A CN103551381A CN 103551381 A CN103551381 A CN 103551381A CN 201310533010 A CN201310533010 A CN 201310533010A CN 103551381 A CN103551381 A CN 103551381A
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Abstract
The invention discloses a method for preparing an oriented magnetostriction thin plate through a columnar crystal plate blank and belongs to the field of magnetic materials. The material component is (Fe100-x-yGaxAly)100-zMz, wherein x is 10-25, and y is 0-9; M is one or more of B, Nb, Cr, Sn, MnS, NbC, VC and TiC, and z is 0-1.0; the balance is Fe. By combining directional pouring or common pouring with directional solidification, the columnar crystal plate blank with pre-oriented <001> orientation is obtained; a combined process of hot rolling, warm rolling and cold rolling is adopted, the starting temperature and ending temperature of the hot rolling are strictly controlled, and the deformation temperature and rolling reduction of each stage in a rolling deformation process are controlled, so that heat treatment at over recrystallization temperature in the deformation process is avoided, the deformation structure of columnar crystal is remained, and a strong <001> orientation texture along the rolling direction in a final cold rolling plate heat treatment process can be formed; meanwhile, the process flow is simplified, and the method is wide in application prospect.
Description
Technical field
The invention belongs to field of magnetic material, relate to the magnetostriction thin plate preparation method who utilizes the preparation of column crystal slab to there is high preferentially <001> orientation.
Background technology
Ferromagnetism and ferrimagnetic material are when magnetized state changes, and minor variations can occur for the length of himself or volume, and this phenomenon is called magnetostriction.The variation of volume is called volume magnetostriction, and the variation of length is called line magnetostriction.Because volume magnetostriction variation is very little, practical value is not high, and usually said magnetostriction mainly refers to line magnetostriction.
Magnetostriction materials are a kind of as intellectual material, are widely used in transducing, driving and field of sensing technologies.High-power magnetostrictive transducer all has wide practical use in national defence and civilian modern industry field, and its core is exactly big magnetostriction coefficient material.Due to metal material low-resistivity, under action of alternating magnetic field, can generate heat because of eddy-current loss, not only reduce the energy efficiency of device, also likely because of heating, cause material failure.Therefore, high-power magnetostrictive transducer, need to have excellent mechanical performances, can process again sheet high-magnetostriction performance materials simultaneously.Although rare earth ultra-magnetostriction material Tb-Dy-Fe has big magnetostriction performance, fragility is large, is difficult to be processed into thin slice; Although the mechanical properties such as tradition magnetostriction alloy Fe-Ni, Ni, Fe-Al are good, magnetostriction coefficient is low, is difficult to meet high-power requirement.
2000, people (the S.Guruswamy such as U.S. S.Guruswamy, N.Srisukhumbowornchai, A.E.Clark, J.B.Restorff, M.Wun-Fogle.Srong, Ductile, and Low-Field-Magnetostrictive Alloys Based on Fe-Ga, Scripta mater.43 (2000) 239 – 244) reported that Ga substitutes the Al in Fe-Al alloy, obtained Fe-Ga or Fe-Ga-Al alloy, not only there is high Magnetostriction, there is good mechanical performance simultaneously, can meet the requirement of high-power magnetostrictive transducer to material.But Fe-Ga or Fe-Ga-Al alloy, also due to its low-resistivity, also need to be processed into thin slice, could effectively avoid the eddy-current loss of material under alternating magnetic field.Meanwhile, due to magnetostrictive anisotropy, need to have <001> orientation along board rolling direction, the Magnetostriction of guarantee maximum, requires rolling strip to have Gauss or cubic texture conventionally.
Document (N Srisukhumbowornchai, S Guruswamy.Crystallographic textures in rolled and annealed Fe-Ga and Fe-Al alloys.Metall.Mater.Trans.A, 2004,35A:2963) reported in Fe-Ga or Fe-Al alloy and added NbC, by hot rolling, warm-rolling and cold rolling method, prepare magnetostriction thin plate, after high-temperature process, obtained Gauss or cubic texture.Document (S M Na, A B Flatau, Surface-energy-induced selective growth of (001) grains in magnetostrictive ternary Fe – Ga-based alloys, Smart Mater.Struct.21 (2012) 055024) reported and utilized the method that surface can be induced to obtain the Fe-Ga thin plate with strong Gauss's orientation to have compared with high-magnetostriction performance.Chinese patent (CN101465406B) has been announced by adding one or more in B, Nb, Cr, TiC, VC, MnS, AlN, and one or more in S, Sb, Sn, by the control of rolling and Technology for Heating Processing, obtained and there is obvious cube or goss texture, there is the Fe-Ga latten of big magnetostriction performance simultaneously.
The above-mentioned preparation method about magnetostriction thin plate, exists material rolling processing technology complicated, and magnetostriction sheet band orientation is unstable, causes the problems such as magnetic property is not high.
Summary of the invention
The object of this invention is to provide the column crystal strand that a kind of utilization has <001> orientation, by rolling and subsequent heat treatment, obtain and there is obviously the preferentially magnetostriction thin plate process technology of <001> orientation.
The present invention starts to control from continuous casting billet structure, the technique of being combined with directional solidification by directed pouring technology or common cast, acquisition has the hot rolling slab of preferred orientation, then by hot rolling, warm-rolling and cold rolling, controlled rolling temperature and drafts, avoid or reduce the recrystallization in rolling deformation process, the deformed microstructure that retains former preferred orientation column crystal, finally by heat treatment, obtain the rolling strip with preferred orientation, make rolling mill practice process simplification, there is prospects for commercial application.
Utilize column crystal slab to prepare a method for orientation magnetostriction thin plate, alloying component (by atomic percent), is expressed as: (Fe
100-x-yga
xal
y)
100-zm
z, x=10～25 wherein, y=0～9; M is B, Nb, Cr, Sn, MnS, NbC, VC, one or more in TiC, z=0～1.0; Surplus is iron.
The high-performance mangneto thin plate preparation method that stretches, concrete technology flow process is as follows:
There is the preferentially column crystal slab of <001> orientation and choose a kind of realization in following two kinds of methods:
Method one: according to alloying component proportioning; and add appropriate scaling loss; under argon shield, induction melting, to after completely evenly, is poured in proper mold mold bottom chilling; make bottom alloy liquid rapid solidification; remainder high-temperature heating, alloy liquid keeps molten state, and pull promotes column crystal growth downwards; obtain <001> preferred orientation, drawing velocity size 1～20mm/min.
Method two: according to alloying component proportioning, and add appropriate scaling loss, induction melting, to after completely evenly, is poured into common die under argon shield, forms alloy pig.Utilize apparatus for directional solidification, carry out alloy pig remelting, by the size of withdrawing rate, control the column crystal direction of growth, obtain <001> preferred orientation, withdrawing rate is at 0.05～15mm/min.
To thering is the preferentially column crystal slab of <001> orientation, along the column crystal direction of growth, carry out hot rolling, warm-rolling and cold rolling.Slab thickness 5～100mm, can directly be used column crystal slab or from column crystal slab, cut the suitable slab that needs thickness.Strict hot rolling open rolling and the finishing temperature controlled, 950～1200 ℃ of start rolling temperatures, drafts 60～97%, finishing temperature, lower than 850 ℃, is quickly cooled to room temperature; Warm-rolling temperature is at 350～600 ℃, warm-rolling drafts 40～90%; After the pickling of warm-rolling plate, carry out cold rolling, to the thickness needing, between final thickness 0.05～0.5mm.
Strips or plates material involved in the present invention, conventionally recrystallization temperature is not less than 600 ℃, for retaining the deformed microstructure of <001> orientation, in rolling deformation process, without the annealing heat treatment process in any recrystallization temperature, can carry out low temperature (lower than 600 ℃) and reply heat treatment to eliminate part work hardening, or not carry out the heat treatment in any deformation process.
To obtained cold-reduced sheet, high-temperature heat treatment under protective atmosphere, heat treatment temperature between 1050～1300 ℃, finally obtain needed <001> orientation be parallel to roll to magnetostriction thin plate.
Utilize this technique, overcome the weak feature of common rolling magnetostriction thin plate orientation, because whole rolling deformation process does not have recrystallization heat treatment process, the columanar structure with <001> orientation is compressed and elongates in deformation process, according to the hereditary capacity of rolling texture, part <001> orientation crystal grain is retained, increased the ratio of the <001> orientation nucleus in final heat treatment process simultaneously, in final heat treatment process, the further growth of <001> orientation crystal grain, finally can obtain along rolling to the goss texture with strong <001> orientation, cubic texture or both mix texture.
The technique that the present invention pours into a mould by orientation or common cast combines with directional solidification, obtained the column crystal strand of <001> orientation, then by controlled rolling temperature and rolling drafts, avoid the heat treatment in the recrystallization temperature in rolling deformation process, improved the ratio of the <001> orientation nucleus in final rolling strip heat treatment process, strip finally have strong along roll to <001> orientation texture, there is high Magnetostriction.The invention provides a kind of method of preparing the flexible thin plate of high-performance mangneto, along rolling to having strong <001> orientation texture, rolling mill practice is simplified simultaneously, and cost, has wide application prospect.
Accompanying drawing explanation
Fig. 1, directed cast (Fe
83ga
17)
99.9nbC
0.1alloy bar, axially XRD diffracting spectrum.
Fig. 2, Fe
81ga
12al
7oDF figure after rolling that plate hight is warm and finishing dealing with
The specific embodiment
Embodiment 1:
According to (Fe
83ga
17)
99.9(NbC)
0.1alloying component proportioning, adopts directed casting equipment to pour into a mould the alloy slab that thickness is 38mm, drawing velocity 8mm/min.Fig. 1, for the axial XRD diffraction pattern of alloy bar, can find out, alloy bar has significantly preferentially <001> orientation.
Described alloy bar is along the hot rolling of the column crystal direction of growth, 1200 ℃ of start rolling temperatures, and 830 ℃ of finishing temperatures, water-cooled is to room temperature, hot rolling drafts 94%; 500 ℃ of warm-rolling temperature, warm-rolling drafts 80%; Described warm-rolling plate, after pickling, carries out cold rolling at room temperature, and the first reduction in pass 40% is repeatedly cold rolling afterwards, final Cold Rolled Plate Thickness 0.28mm.
Described cold-reduced sheet is under protective atmosphere, and 1200 ℃ of high-temperature heat treatment, finish to gauge plate has strong Gauss's orientation.
Embodiment 2:
According to Fe
81ga
12al
7alloying component proportioning, adopt directed casting equipment to pour into a mould the alloy slab that thickness is 60mm, drawing velocity 6mm/min.From obtaining alloy slab, cut the column crystal slab of thickness 20mm, along the column crystal direction of growth, carry out hot rolling, 1150 ℃ of start rolling temperatures, 750 ℃ of finishing temperatures, air cooling is to room temperature, hot rolling drafts 90%; Described hot rolled plate is at 400 ℃ of warm-rollings, warm-rolling drafts 50%; Described warm-rolling plate, the low temperature recovery heat treatment of 500 ℃, is eliminated part work hardening, then through cold rolling after pickling, and cold rolling the first reduction in pass 50%, repeatedly cold rolling afterwards, final Cold Rolled Plate Thickness 0.15mm.
Described cold-reduced sheet, under protective atmosphere, 1100 ℃ of high-temperature process.Fig. 2 is the ODF figure of heat treatment after completing
can find out, in finish to gauge plate texture component, it is leading that goss texture accounts for, and also has stronger cubic texture simultaneously.
Embodiment 3:
According to (Fe
83ga
19)
99.5b
0.5alloying component proportioning, commonly pours into the strand that 60mm is thick, cuts after 30mm slab from the strand of common cast, adopts apparatus for directional solidification, and drawing velocity 2mm/min, prepares slab.
Slab is along the hot rolling of the column crystal direction of growth, 1100 ℃ of start rolling temperatures, and 800 ℃ of finishing temperatures, air-cooled to room temperature, hot rolling drafts 90%; 450 ℃ of warm-rolling temperature, warm-rolling drafts 80%; Described warm-rolling plate at 500 ℃ after a period of time is replied heat treatment, after surface acid-washing, carry out cold rolling, cold rolling final thickness 0.25mm.
Described cold-reduced sheet, under protective atmosphere, 1150 ℃ of high-temperature heat treatment, finish to gauge plate has strong cube of orientation.
Claims (4)
1. utilize column crystal slab to prepare a method for orientation magnetostriction thin plate, it is characterized in that: before hot rolling open rolling, slab has the columanar structure of <001> preferred orientation, slab thickness 5～100mm; Rolling is carried out along the column crystal direction of growth; Strict hot rolling open rolling and the finishing temperature controlled, 950～1200 ℃ of start rolling temperatures, drafts 60～97%, finishing temperature, lower than 850 ℃, is quickly cooled to room temperature after hot rolling completes; Warm-rolling temperature is at 350～600 ℃, warm-rolling drafts 40～90%; After the pickling of warm-rolling plate, carry out cold rolling, to the thickness needing, between final thickness 0.05～0.5mm.
2. the method for utilizing column crystal slab to prepare orientation magnetostriction thin plate as claimed in claim 1, is characterized in that: orientation magnetostriction sheet alloy composition, by atomic percent, is expressed as: (Fe
100-x-yga
xal
y)
100-zm
z, x=10～25 wherein, y=0～9; M is B, Nb, Cr, Sn, MnS, NbC, VC, one or more in TiC, z=0～1.0; Surplus is iron.
3. the column crystal slab that utilizes as claimed in claim 1 is prepared the method that is orientated magnetostriction thin plate, it is characterized in that: there is the column crystal slab of preorientation <001> orientation, choose a kind of realization in following two kinds of methods:
Method one: according to alloying component proportioning, and add appropriate scaling loss, under argon shield, induction melting, to after completely evenly, is poured in proper mold mold bottom chilling, make bottom alloy liquid rapid solidification, remainder high-temperature heating, alloy liquid keeps molten state, and pull promotes column crystal growth downwards, obtain <001> preferred orientation, drawing velocity size 1～20mm/min;
Method two: according to alloying component proportioning, and add appropriate scaling loss, induction melting, to after completely evenly, is poured into common die under argon shield, forms alloy pig; Utilize apparatus for directional solidification, carry out alloy pig remelting, by the size of withdrawing rate, control the column crystal direction of growth, obtain <001> preferred orientation, withdrawing rate is at 0.05～15mm/min.
4. the column crystal slab that utilizes as claimed in claim 1 is prepared the method that is orientated magnetostriction thin plate, it is characterized in that: in rolling deformation process, without heat treatment process more than any recrystallization temperature, employing is lower than the low temperature recovery heat treatment of 600 ℃, or do not carry out the heat treatment in any deformation process.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104711475A (en) * | 2015-03-30 | 2015-06-17 | 北京科技大学 | Fe-Ga-Al alloy strip with high magnetostrictive properties and preparation method thereof |
| CN105543672A (en) * | 2016-02-23 | 2016-05-04 | 东北大学 | Method for optimizing non-oriented high silicon steel cold-rolled sheet pattern |
| CN107739801A (en) * | 2017-10-10 | 2018-02-27 | 北京科技大学 | The method that one kind prepares Fe Ga (Al) magnetostriction strip in razor-thin using tertiary recrystallization |
Citations (4)
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|---|---|---|---|---|
| JPH0437442A (en) * | 1990-06-01 | 1992-02-07 | Aichi Steel Works Ltd | Apparatus for producing magnetostrictive material |
| JPH06184709A (en) * | 1992-12-16 | 1994-07-05 | Tdk Corp | Magnetostorictive material and manufacture thereof |
| WO2006094251A2 (en) * | 2005-03-03 | 2006-09-08 | University Of Utah Technology Commercialization Office | Magnetostrictive fega alloys |
| CN101654759A (en) * | 2008-08-19 | 2010-02-24 | 北京麦格东方材料技术有限公司 | Magnetostrictive material and preparation method thereof |
-
2013
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0437442A (en) * | 1990-06-01 | 1992-02-07 | Aichi Steel Works Ltd | Apparatus for producing magnetostrictive material |
| JPH06184709A (en) * | 1992-12-16 | 1994-07-05 | Tdk Corp | Magnetostorictive material and manufacture thereof |
| WO2006094251A2 (en) * | 2005-03-03 | 2006-09-08 | University Of Utah Technology Commercialization Office | Magnetostrictive fega alloys |
| CN101654759A (en) * | 2008-08-19 | 2010-02-24 | 北京麦格东方材料技术有限公司 | Magnetostrictive material and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| N. SRISUKHUMBOWORNCHAI等: "Crystallographic Textures in Rolled and Annealed Fe-Ga and Fe-Al Alloys", 《METALLURGICAL AND MATERIALS TRANSACTIONS A》, vol. 35, 30 September 2004 (2004-09-30), pages 2963 - 2970, XP019694812 * |
| 丁雨田等: "定向凝固Fe81Ga19合金的组织和磁致伸缩性能", 《兰州理工大学学报》, vol. 37, no. 2, 30 April 2011 (2011-04-30), pages 1 - 4 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104711475A (en) * | 2015-03-30 | 2015-06-17 | 北京科技大学 | Fe-Ga-Al alloy strip with high magnetostrictive properties and preparation method thereof |
| CN104711475B (en) * | 2015-03-30 | 2016-08-24 | 北京科技大学 | A kind of Fe-Ga-Al alloy strip steel rolled stock of high-magnetostriction performance and preparation method thereof |
| CN105543672A (en) * | 2016-02-23 | 2016-05-04 | 东北大学 | Method for optimizing non-oriented high silicon steel cold-rolled sheet pattern |
| CN105543672B (en) * | 2016-02-23 | 2017-10-31 | 东北大学 | A kind of method for optimizing the high silicon steel cold-reduced sheet template of No yield point |
| CN107739801A (en) * | 2017-10-10 | 2018-02-27 | 北京科技大学 | The method that one kind prepares Fe Ga (Al) magnetostriction strip in razor-thin using tertiary recrystallization |
| CN107739801B (en) * | 2017-10-10 | 2019-03-15 | 北京科技大学 | A method of Fe-Ga (Al) magnetostriction strip in razor-thin is prepared using tertiary recrystallization |
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| CN103551381B (en) | 2015-07-15 |
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