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fe-b-si bulk amorphous alloy

An amorphous alloy, fe-b-si technology, applied in the field of iron-based bulk amorphous alloy materials, can solve the problems of unfavorable applications, low saturation magnetic induction of alloys, and high price, so as to reduce preparation costs, increase viscosity, The effect of improving the ability to form amorphous

Active Publication Date: 2018-07-03
朗峰新材料(菏泽)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the SENNTIX series of bulk amorphous soft magnetic alloys have excellent performance, the saturation magnetic induction of the alloy is low, and the price of Nb is expensive, which is not conducive to application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Example 1, Fe 72 B 16.7 Si 8.3 Zr 2.5 Cu 0.5 bulk amorphous alloy;

[0043] Step 1, component weighing and alloy ingot melting:

[0044] Will Fe 72 B 16.7 Si 8.3 Zr 2.5 Cu 0.5 Alloy atomic percent composition is converted into mass percent composition, using simple substance or Fe-B alloy as raw material, weighing and batching according to the mass percentage of the alloy, and mixing the weighed raw materials in an electromagnetic induction melting furnace or non-consumable arc melting In the furnace, smelting is carried out under the protection of high-purity argon or nitrogen to obtain an alloy ingot with uniform composition, and the mass loss of the alloy ingot after smelting is less than 1%.

[0045] Step 2, preparation of bulk amorphous samples:

[0046] Put the alloy ingot in a quartz tube, conduct electromagnetic induction melting and heat preservation under the protection of argon or nitrogen, turn on the blow casting device at the quenching temperatu...

Embodiment 2

[0051] Example 2, Fe 70 co 8 B 13.5 Si 6.5 Zr 1.5 f 0.2 Cu 0.3 bulk amorphous alloy;

[0052] Step 1, component weighing and alloy ingot melting:

[0053] Will Fe 70 co 8 B 13.5 Si 6.5 Zr 1.5 f 0.2 Cu 0.3 The atomic percent composition of the alloy is converted into a mass percent composition, using simple substance, Fe-B alloy, sponge Zr or Zr-Hf alloy as raw materials, weighing the ingredients according to the mass percentage of the alloy, and mixing the weighed raw materials in electromagnetic induction melting Furnace or non-consumable arc melting furnace, smelting under the protection of high-purity argon or nitrogen, to obtain alloy ingots with uniform composition, and the mass loss of alloy ingots after smelting is less than 1%.

[0054] Step 2, preparation of bulk amorphous samples:

[0055] First place the alloy ingot in a quartz tube, then conduct induction melting under the protection of argon or nitrogen, and keep it warm, turn on the blow casting de...

Embodiment 3

[0060] Example 3, Fe 63.3 co 5 B 18 Si 8.5 Zr 3 f 0.5 Ta 1.5 Cu 0.2 bulk amorphous alloy;

[0061] Step 1, component weighing and alloy ingot melting:

[0062] Same as Step 1 in Example 2.

[0063] Step 2, the preparation process of the bulk amorphous sample:

[0064] First place the alloy ingot in a quartz tube, then conduct induction melting under the protection of argon or nitrogen, and keep it warm, turn on the blow casting device at the quenching temperature, let the alloy melt spray into the cylindrical water-cooled copper mold cavity, and cool it rapidly Obtained bulk amorphous samples, Fe 63.3 co 5 B 18 Si 8.5 Zr 3 f 0.5 Ta 1.5 Cu 0.2 The critical size of the component alloy to form a bulk amorphous sample is 2.5 mm; or under the protection of argon or nitrogen, the alloy ingot is directly melted by an electric arc, and then sucked into a cylindrical water-cooled copper model cavity under negative pressure, and rapidly cooled to obtain For bulk amorph...

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Abstract

The invention discloses a novel Fe-B-Si massive amorphous alloy. The expression of the alloy is Fe100-a-b-c-d-eCoaBbSicMdCue; M is one or more elements in elements of Zr, Hf, Ta and Ti; a is not bigger than 20 and not smaller than 0; b is not bigger than 20 and not smaller than 10; c is not bigger than 10 and not smaller than 5; d is not bigger than 7 and not smaller than 1; e is not bigger than 1.2 and not smaller than 0.1; the balance is iron; and Fe+Co is not bigger than 78. As such low-cost raw materials as sponge Zr or Zr-Hf alloy are used, the preparation cost of the massive amorphous alloy is largely reduced. A rod massive amorphous sample with a critical size of 1-4 mm can be prepared through the alloy components by a general copper mold casting method. The maximum compression strength of the obtained rod massive amorphous sample can reach 4500 MPa; the maximum saturated magnetic induction strength is 1.6 T; and the coercivity is lower than 2 A / m.

Description

technical field [0001] The invention relates to the fields of structural materials and magnetic functional materials, in particular to an iron-based bulk amorphous alloy material with large amorphous forming ability, high compressive strength, high saturation magnetic induction and low coercive force. Background technique [0002] Iron-based amorphous alloy has excellent mechanical properties and comprehensive soft magnetic properties. Its main features are: high strength and hardness, high saturation magnetic induction, low coercive force, high magnetic permeability and low loss. It has been widely used in the fields of transformer core materials, transformer cores and sensors. At present, the widely studied amorphous soft magnetic alloy materials mainly include: transition group metal-metalloid type amorphous alloy, transition group metal-conventional metal-metalloid type amorphous alloy and transition group metal-rare earth metal-metalloid type amorphous alloy. crystal a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C45/02C21D1/30
CPCC21D1/30C21D2201/03C22C33/003C22C45/02
Inventor 耿遥祥张志杰董闯
Owner 朗峰新材料(菏泽)有限公司