Iron-based amorphous magnetically soft alloy with uniform element distribution and preparation method thereof

An iron-based amorphous alloy and iron-based amorphous technology, which can be used in magnetic materials, magnetic objects, electrical components, etc., and can solve the problems of uneven distribution, high alloy cost, and low saturation magnetization.

Active Publication Date: 2014-10-01
ADVANCED TECHNOLOGY & MATERIALS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In summary, the soft magnetic properties of amorphous soft magnetic alloys have been improved to varying degrees by adjusting the alloy composition and preparation process, but there are still obvious defects in general: the saturation magnetization is still not very high, especially It is impossible to achieve high saturation magnetization and low coercive force at the same time; the composition of the alloy contains one or more of noble metal elements such as Nb, Zr, Co, Ni,

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  • Iron-based amorphous magnetically soft alloy with uniform element distribution and preparation method thereof
  • Iron-based amorphous magnetically soft alloy with uniform element distribution and preparation method thereof
  • Iron-based amorphous magnetically soft alloy with uniform element distribution and preparation method thereof

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Example Embodiment

[0047] The three key steps of the single-roll melt rapid quenching method described in the preparation method of the present invention are: A melting alloy step, figure 1 The crucible shown in Figure 1 is used to complete the melting of the alloy; in the B spin-off step, the molten alloy solution in the crucible is thrown out by the nozzle under high vacuum and argon protective atmosphere. figure 1 Middle nozzle and crucible system to complete; C cooling step is used to cool the alloy solution coming out of the nozzle to form an amorphous ribbon, which is figure 1 The quenched roller is completed.

[0048] figure 1 It is a common equipment for the single-roll melt rapid quenching method of the present invention, which includes a crucible 3; an induction heating coil 4 arranged outside the crucible; a nozzle 8 arranged at the bottom of the crucible 3 for spraying molten alloy liquid 5 in the crucible; The quenching roller 6 arranged under the nozzle 8 is used to form an amorphous ri...

Example Embodiment

[0049] Example 1

[0050] Fe in the iron-based amorphous alloy of the present invention a Si b B c P d M e A group of different alloy samples were prepared in the range of composition. The composition of the samples is shown in Table 1. The alloys with serial numbers 1-9 and 22-25 are examples of the present invention (in the single-roll quenching method for preparing amorphous ribbons) It is prepared under the conditions of evacuated and filled with argon gas), and the alloy with the serial number 10-21 is the comparative example of the present invention (the alloy composition does not contain M element, the specific operation of the single-roll quenching method for preparing amorphous ribbon The conditions are shown in Table 1). The alloy No. 26 adopts the alloy composition of the present invention but is prepared in the atmospheric atmosphere in the step of preparing the amorphous strip by the single-roll quenching method. The performance test results of each iron-based amorph...

Example Embodiment

[0062] Example 2

[0063] Fe in the iron-based amorphous alloy of the present invention a Si b B c P d M e A group of different alloy samples were prepared in the range of composition. The composition of the samples is shown in Table 2. The alloys with sample numbers 27-45 and 49-58 are charged by vacuum in the single-roll quenching method for preparing amorphous ribbons. The preparation is carried out under argon conditions, and the alloys numbered 46-48 and 59-64 are prepared in an atmosphere in the step of preparing amorphous ribbons by a single-roll quenching method. The preparation method is the same as in Example 1. The various properties of samples 27-64 are tested by the same test method as in Example 1. The measured results are shown in Table 2.

[0064] It can be seen from the sample analysis results of this embodiment that: 1) the alloy strip structure of all samples of this embodiment are completely amorphous; 2) all samples of this embodiment have excellent soft magne...

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Abstract

The invention discloses an iron-based amorphous magnetically soft alloy with uniform element distribution and a preparation method thereof. The expression of the alloy is FeaSibBcPdMe, a, b, c, d and e in the expression represent the atomic percent contents of corresponding components respectively, and meet the following conditions: a is not less than 70 and not greater than 84, b is not less than 2 and not greater than 10, c is not less than 5 and not greater than 18, d is not less than 0.001 and not greater than 8, e is not less than 0.0001 and not greater than 2.5, a+b+c+d+e=100%, and M is one or more of C, N, Sn, Ge, Ga, Al, S, Te, Be, Pb, Mg and Cu. The amorphous strip prepared from the alloy under a high vacuum and argon shield has the characteristic of uniform element distribution, particularly solves the problem of non-uniform distribution of element P in the amorphous alloy, has excellent magnetically soft performance, and is suitable for transformers, engines, power generators, magnetic sensors and the like.

Description

technical field [0001] The invention relates to the field of amorphous soft magnetic materials, in particular to an iron-based amorphous soft magnetic alloy with uniform element distribution and a preparation method thereof, which also has high thermal stability and high saturation magnetic induction, and is suitable for transformers, engines, power generation machines and magnetic sensors, etc. Background technique [0002] Soft magnetic alloy material is a kind of magnetic functional material developed earlier by human beings. It has excellent soft magnetic properties such as high saturation magnetic induction, high magnetic permeability, low loss, and low coercive force. Since its initial appearance and development, it has experienced electrical pure iron, electrical steel, permalloy, Fe-Co alloy, soft ferrite, and Fe-based amorphous and nanocrystalline alloys. In practical applications, the traditional electrical steel has a large loss, and the saturation magnetization ...

Claims

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Application Information

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IPC IPC(8): C22C45/02H01F1/147
Inventor 周少雄向睿董帮少张广强李宗臻
Owner ADVANCED TECHNOLOGY & MATERIALS CO LTD
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