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Full-metallic-element Fe-Co-Ni-Mo-Hf amorphous alloy and preparing method thereof

An amorphous alloy and metal element technology, which is 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, low yield, etc., and achieves high saturation magnetization and preparation method. Simple, high-strength effect

Active Publication Date: 2016-11-09
DONGGUAN UNIV OF TECH
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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] The alloy composition expression (atomic number %) is converted into the alloy composition expression (weight %), respectively to the Fe of 99.8% of the purity, the Co of 99.8% of the purity, the Ni of 99.8% of the purity, the Ni of 99.8% of the purity Mo and Hf with a purity of 99.8% were weighed after descaling first, with an accuracy of 0.0001 g, and the total weight of the preparation was 10 grams.

[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 pressure is 0.04Mpa, and the titanium ingot placed in...

Embodiment 2

[0034] Step 1: Prepare and weigh raw materials

[0035] The alloy composition expression (atomic number %) is converted into the alloy composition expression (weight %), respectively to the Fe of 99.9% purity, the Co of 99.9% of purity, the Ni of 99.9% of purity, the Ni of 99.9% of purity Mo and Hf with a purity of 99.9% were weighed after descaling first, the weighing accuracy was 0.0001g, and the total weight of the preparation was 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 the furnace cavity copper crucible is melted for 2 minutes to absorb ...

Embodiment 3

[0042] This embodiment includes the following steps:

[0043] Include the following steps:

[0044] Step 1: Prepare and weigh raw materials

[0045] The alloy composition expression (atomic number %) is converted into the alloy composition expression (weight %), respectively to the Fe of 99.9% purity, the Co of 99.9% of purity, the Ni of 99.9% of purity, the Ni of 99.9% of purity Mo and 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 the master alloy. Under the protection of high-purity argon, the...

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PUM

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Abstract

The invention discloses a full-metallic-element Fe-Co-Ni-Mo-Hf amorphous alloy. The full-metallic-element Fe-Co-Ni-Mo-Hf amorphous alloy is composed of ferromagnetism elements including Fe, Co and Ni and a transition metal element TM. The chemical constituents of the full-metallic-element Fe-Co-Ni-Mo-Hf amorphous alloy can be shown as ((FexCoyNiz)aMobHfc, wherein the sum of a, b and c is 100, a is 70-87 at.%, b is 7-30 at.%, and c is 6-12 at.%; and the sum of x, y and z is 1, the value of x is 0.50-0.60, the value of y is 0.15-0.44, and the value of z is 0-0.32. A full-metallic-element Fe-based amorphous alloy strip prepared through the full-metallic-element Fe-Co-Ni-Mo-Hf amorphous alloy has high bending fracture tenacity, high hardness, relatively high saturation magnetization intensity and good amorphous forming ability. A preparing method is simple, convenient to operate and suitable for industrial production. In addition, the invention further provides the preparing method for 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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IPC IPC(8): C22C45/02C22C1/02
CPCC22C1/02C22C45/02C22C1/11
Inventor 谢春晓钟守炎李胜邓世春
Owner DONGGUAN UNIV OF TECH