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Fe base block amorphous alloy based on Fe-B-Y cluster

A technology of amorphous alloys and clusters, applied in the field of new materials, can solve problems such as difficulty in controlling volatilization of B elements, complex composition selection and optimization, subjectivity and randomness, etc.

Inactive Publication Date: 2006-11-29
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the difficulties of ①complex selection and optimization of components in the multi-component system existing in the prior art, ②relying on the empirical formula of experiments to find the composition of bulk amorphous alloys, which has subjectivity and randomness, and ③B elements in the smelting process It is difficult to control volatilization, and according to the cluster line criterion, a new Fe-based bulk amorphous alloy is developed, and the alloy composition is precisely controlled, and the technical solution of the present invention is specially proposed

Method used

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  • Fe base block amorphous alloy based on Fe-B-Y cluster

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment one, (Fe 68.6 B 25.7 Y 5.7 ) 0.96 Nb 2 Zr 2 Preparation of Bulk Amorphous Alloy and Its Properties Test

[0038] The first step, the weighing of the composition ratio

[0039] The composition is designed according to the atomic percentage. In the process of weighing the raw materials, the alloy atomic percentage (Fe 68.6 B 25.7 Y 5.7 ) 0.96 Nb 2 Zr 2 Converted to weight percent Fe 76.6 B 5.5 Y 10.2 Nb 3.9 Zr 3.8 , Weigh the raw materials of pure metal Fe, B, Y, Nb and Zr with a purity of 99.9% in proportion, and reserve; and add 10% more B in advance to compensate for the volatilization of the alloy during smelting;

[0040] The second step, the smelting of Fe-B master alloy ingot

[0041] First put the weighed mixture of metal Fe and non-metal B in the water-cooled copper crucible of the arc melting furnace, and use the non-consumable arc melting method to smelt under the protection of argon, and first vacuumize to 10 -2 Pa, then filled wit...

Embodiment 2

[0052] Embodiment two, (Fe 74.9 B 18.8 Y 6.3 ) 0.96 Nb 2 Zr 2 Preparation of Bulk Amorphous Alloy and Its Properties Test

[0053] The first step is to weigh the composition ratio

[0054] The composition is designed according to the atomic percentage. In the process of weighing the raw materials, the alloy atomic percentage (Fe 74.9 B 18.8 Y 6.3 ) 0.96 Nb 2 Zr 2 Converted to weight percent Fe 78.4 B 3.8 Y 10.6 Nb 3.6 Zr 3.6 , Weigh the raw materials of pure metal Fe, B, Y, Nb and Zr with a purity of 99.9% in proportion, and reserve; and add 10% more B in advance to compensate for the volatilization of the alloy during smelting;

[0055] The second step, the smelting of Fe-B master alloy ingot

[0056] After vacuuming, the pressure of filling argon is 0.07MPa, and the current density used for melting is 165A / cm 2 , other are all with the second step in the embodiment one (omitted);

[0057] The third step is to check the composition of Fe-B master alloy ingot ...

Embodiment 3

[0065] Embodiment three, (Fe 77.6 B 15.9 Y 6.5 ) 0.96 Nb 2 Zr 2 Preparation of Bulk Amorphous Alloy and Its Properties Test

[0066] The first step, the weighing of the composition ratio

[0067] The composition is designed according to the atomic percentage. In the process of weighing the raw materials, the alloy atomic percentage (Fe 77.6 B 15.9 Y 6.5 ) 0.96 Nb 2 Zr 2 Converted to weight percent Fe 79.3 B 3.2 Y 10.5 Nb 3.5 Zr 3.5 , Weigh the raw materials of pure metal Fe, B, Y, Nb and Zr with a purity of 99.9% in proportion, and reserve; and add 10% more B in advance to compensate for the volatilization of the alloy during smelting;

[0068] The second step, the smelting of Fe-B master alloy ingot

[0069] After vacuuming, the pressure of filling argon is 0.06MPa, and the current density used for melting is 175A / cm 2 , other are all with the second step in the embodiment one (omitted);

[0070] The third step is to check the composition of Fe-B master all...

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Abstract

The invention relates to Fe radical block non-crystal alloy based on F3-B-Y group cluster. It adds 2at.% Nb and 2at.% Zr or Hf or Ti or Mo or Ta on the base of Fe-B-Y ternary system to take micro alloying. The constituent interval is [(Fe12 / 13Y1 / 13)100-xBx]0.96Nb2M2, and x=15-26at.%. The method includes the following steps: mixing, melting in Fe-B internal alloy, taking negative pressure casting absorbing, the argon gas pressure is 0.06-0.08MPa, fusion melting current density is 180-220A / cm2, casting adsorbing current density is 280-310A / cm2, and draught head is 0.04+0.005MPa, the diameter of the block non-crystal is 3mm. The advantages of the invention are that it develops five Fe radical block non-crystal alloys. In the melting process, smelting Fe and B to form internal alloy, the volatilization of B would be avoided.

Description

technical field [0001] The invention relates to an Fe-based Fe-B-Y-Nb-Zr, Fe-B-Y-Nb-Hf, Fe-B-Y-Nb-Ti, Fe-B-Y-Nb with large amorphous forming ability, high strength and magnetic properties - Mo and Fe-B-Y-Nb-Ta system bulk amorphous alloy, belonging to the field of new materials. Background technique [0002] Amorphous metal alloys are a class of metals or alloys with short-range order and long-range disorder structures, and they have high comprehensive mechanical properties and unique physical and chemical properties. However, due to the influence of metal or alloy amorphous forming ability (that is, the ability to form amorphous alloy), the preparation of such materials requires a higher cooling rate, and the general critical cooling rate is 10 5 K / s. In the order of cooling speed from high to low, commonly used quenching technologies include: melt atomization, thin film deposition technology, and copper roller quenching strip technology. The material form is often low-di...

Claims

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Application Information

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IPC IPC(8): C22C45/02C22C1/04B22D18/00
Inventor 董闯王清陈伟荣吴江羌建兵王英敏
Owner DALIAN UNIV OF TECH
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