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A kind of all-metal element fe-co-ni-mo-hf amorphous alloy and preparation method thereof

A fe-co-ni-mo-hf, amorphous alloy technology, applied in the field of amorphous alloy material preparation, can solve the problems of high brittleness of Fe-based amorphous alloys, excessive brittleness of materials, and low yield rate, etc., to achieve High saturation magnetization, simple preparation method, high hardness effect

Active Publication Date: 2018-10-26
工大新源(天津)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bending process of Fe-based amorphous alloy strip is usually carried out before heat treatment, which improves the production efficiency, but the excessive brittleness of the material is still a major difficulty encountered in the subsequent production and manufacturing process
Therefore, the defect of high brittleness of Fe-based amorphous alloy makes the process more complicated when it is used to manufacture various iron cores, and the yield rate is not high. The resulting disadvantage of high cost prevents it from replacing silicon steel sheets on a large scale. materials and go to the market, but also restrict its application as a structural material to engineering applications

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment includes the following steps:

[0026] Step 1: Prepare and weigh raw materials

[0027] Convert the alloy chemical composition expression with the subscript as atomic percentage into the alloy composition expression with the subscript as weight percentage, respectively for Fe with a purity of 99.8%, Co with a purity of 99.8%, Ni with a purity of 99.8%, The Mo with a purity of 99.8% and the Hf with a purity of 99.8% are weighed after descaling first, and the weighing is accurate to 0.0001 g, and the total weight of the preparation is 10 g.

[0028] Step 2: Preparation of Fe-Co-Ni-Mo-Hf master alloy

[0029] Put the ingredients in step 1 into the high vacuum electric arc melting furnace, and pre-pump the low vacuum to 10 -1 Pa, and then pumped a high vacuum through the diffusion pump to make the vacuum degree reach 4×10 -3 Above Pa, tungsten electrode argon arc is used to melt the master alloy. Under the protection of high-purity argon gas, the argon pr...

Embodiment 2

[0034] Step 1: Prepare and weigh raw materials

[0035] Convert the alloy chemical composition expression with the subscript as atomic percentage into the alloy composition expression with the subscript as weight percentage, respectively for Fe with a purity of 99.9%, Co with a purity of 99.9%, Ni with a purity of 99.9%, The Mo with a purity of 99.9% and the Hf with a purity of 99.9% are weighed after descaling first, and the weighing is accurate to 0.0001g, and the total weight of the preparation is 15 grams.

[0036] Step 2: Preparation of Fe-Co-Ni-Mo-Hf master alloy

[0037] Put the ingredients in step 1 into the high vacuum electric arc melting furnace, and pre-pump the low vacuum to 10 -1 Pa, and then pumped a high vacuum through the diffusion pump to make the vacuum degree reach 4×10 -3Above Pa. Tungsten electrode argon arc is used to smelt the master alloy. Under the protection of high-purity argon gas, the argon pressure is 0.06Mpa, and the titanium ingot put into t...

Embodiment 3

[0042] This embodiment includes the following steps:

[0043] Include the following steps:

[0044] Step 1: Prepare and weigh raw materials

[0045] Convert the alloy chemical composition expression with the subscript as atomic percentage into the alloy composition expression with the subscript as weight percentage, respectively for Fe with a purity of 99.9%, Co with a purity of 99.9%, Ni with a purity of 99.9%, The Mo with a purity of 99.9% and the Hf with a purity of 99.9% are weighed after first removing scale, and the weighing is accurate to 0.0001g, and the total weight of the preparation is 12 grams;

[0046] Step 2: Preparation of Fe-Co-Ni-Mo-Hf master alloy

[0047] Put the raw materials prepared in step 1 into the high vacuum arc melting furnace, and firstly draw a low vacuum to 10°C with a mechanical pump. -1 Pa, and then pumped a high vacuum through the diffusion pump to make the vacuum degree reach 4×10 -3 Above Pa, tungsten electrode argon arc is used to melt ...

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Abstract

The invention discloses an all-metal element Fe-Co-Ni-Mo-Hf amorphous alloy, which is composed of ferromagnetic elements Fe, Co, Ni and transition metal element TM, and its chemical composition can be expressed as: ((FexCoyNiz) aMobHfc, where a+b+c=100, a is 70‑87at.%, b is 7‑30at.%, c is 6‑12at.%; x+y+z=1, x value is 0.50‑0.60, The y value is 0.15-0.44, and the Z value is 0-0.32. The all-metal element Fe-based amorphous alloy strip made by the present invention has high bending fracture toughness, high hardness, higher saturation magnetization and good amorphous forming ability , and the preparation method is simple, the operation is convenient, and it is suitable for industrial production. In addition, the invention also provides a preparation method of the amorphous alloy.

Description

technical field [0001] The invention relates to the field of preparation of amorphous alloy materials, in particular to an all-metal element Fe-Co-Ni-Mo-Hf amorphous alloy and a preparation method thereof. Background technique [0002] Due to its high strength, high hardness, excellent corrosion resistance and magnetic properties, and low cost, Fe-based amorphous alloy materials have attracted more and more attention from researchers and become a hot spot in the current research on amorphous alloys. At present, except for a small part of the Fe-based amorphous alloys that have been developed, the rest have excellent soft magnetic properties, that is, higher saturation magnetic induction (can reduce the volume of the device), high magnetic permeability, and low coercive force. (improving device efficiency), low loss (reducing device temperature rise), low excitation current and good temperature stability (long-time work from -55°C to 130°C), etc., are used in the manufacture ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C45/02C22C1/02
CPCC22C1/02C22C45/02C22C1/11
Inventor 谢春晓钟守炎李胜邓世春
Owner 工大新源(天津)科技有限公司