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Iron based amorphous alloy material and uses thereof

An iron-based amorphous and versatile technology, applied in the field of iron-based amorphous alloy materials and metal materials, can solve the problems of limited popularization and application, high content of precious metals, and high material costs

Inactive Publication Date: 2009-07-29
ADVANCED TECHNOLOGY & MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of material has high precious metal content, high material cost, and limited popularization and application.

Method used

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  • Iron based amorphous alloy material and uses thereof
  • Iron based amorphous alloy material and uses thereof
  • Iron based amorphous alloy material and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0042]There is no particular limitation on the preparation method of the iron-based amorphous material of the present invention. Moreover, those skilled in the art can select an appropriate preparation method according to the specific form of the final material. As mentioned above, the iron-based amorphous material of the present invention can be formed in various forms, including but not limited to powder, strip, rod, wire and bulk material. For each particular form of material there are known methods of preparation in the art. Those skilled in the art can use the above-mentioned known preparation methods for the preparation of the materials in this application, and those skilled in the art can also use appropriate methods other than the above methods to prepare the materials in this application.

[0043] Usually, the criteria for evaluating the ability of amorphous formation include the stable zone range of the supercooled liquid ΔTx=Tx-Tg, the reduced glass transition temp...

Embodiment 1

[0047] Embodiment 1 of the present invention adopts the mode of suction casting of vacuum arc melting copper mold. First, the industrially used pure metals Fe, Cr, Ni, Si and industrially used Cr-C, Fe-B, Fe-P alloys are formulated as raw materials according to the required atomic ratio. Then, the zirconium is arc-melted in an argon protective atmosphere absorbing oxygen, and the pressure of the argon is about one atmosphere. The electric arc furnace is equipped with a suction casting chamber, and the smelted alloy is remelted for copper mold suction casting. After the alloy raw material is injected into the copper mold, Fe with uniform composition is formed. 61 Ni 2 Cr 16 P 7 C 5 B 5 Si 4 Amorphous alloy rods with a diameter of 2 mm.

[0048] In order to verify the microstructure of the alloy rod, the transverse interface of the rod was ground, polished, etched with 5wt% nitric acid alcohol for 12 minutes, and the microstructure of the obtained material was observed u...

Embodiment 2

[0051] The alloy preparation process of embodiment 2 is with reference to embodiment 1, adopts industrially used pure metal Fe, Cr, Ni, Si, Sn and industrially used Fe-B, Fe-P alloy to prepare raw materials according to the required atomic ratio , the preparation composition is Fe 55 Ni 2 Cr 16 P 12 B 10 Si 4 sn 1 of amorphous alloys.

[0052] The alloy was tested as in Example 1. The glass transition temperature (T g ) is 742.5K, the initial crystallization temperature (T x ) is 807.3K, melting point (T m ) is 1250.2K, liquidus temperature (T 1 ) is 1312.8K, the width of the supercooled liquid phase region (ΔT x ) is 64.8K, the approximate glass transition temperature (T rg ) is 0.658, and the parameter γ is 0.393. The above data shows that the alloy in Example 2 has excellent amorphous forming ability

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Abstract

The invention relates to a Fe-based amorphous material, the composition of the material is expressed by atomic ratio as follows: Fe100-a-b-c-d-eNiaCrbPcTdDe, wherein, a is 0.5-8, b is 5-26, c is 3-15, d is 8-20 and e is 0-8; T is one or more of B, C and Si, and D is five or less of Y, V, Zr, Mo, Nb, Cu, Al, Ga, Sn, W and Mn. The material can be in the form of powder, strip, wire and block material.

Description

technical field [0001] The invention mainly relates to the field of metal materials, especially the field of iron-based amorphous alloy materials. Background technique [0002] The main feature of amorphous materials (or amorphous materials) is that the three-dimensional space of atoms is arranged in a topologically disordered manner, and there are no defects such as grain boundaries and stacking faults in the structure. Amorphous alloys mainly have metallic bonds as their structural features, and there is no long-range order, but they maintain short-range order in the range of several lattice constants. This long-range disorder in the structure of amorphous alloys leads to their excellent soft magnetic properties, mechanical properties, and chemical properties. So far, the application of amorphous alloys in magnetic devices has achieved amazing progress and great economic benefits, and the applications in mechanical and chemical aspects have also achieved good results. As...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/02
Inventor 倪晓俊薄希辉卢志超周少雄郭金花吴嘉伟赵新彬郭峰李德仁孙克
Owner ADVANCED TECHNOLOGY & MATERIALS CO LTD
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