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Ni-Fe-B-Si-Ta bulk metallic glass

A block metal, ni-fe-b-si-ta technology, applied in the field of new materials, can solve the problems of inability to synthesize bulk metallic glass, arbitrary optimization and complexity, and achieve the effect of improving glass forming ability

Inactive Publication Date: 2009-12-30
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problems to be solved in the present invention are: 1. the lack of arbitrariness and optimization complexity in the composition selection; Ni-Fe-B-Si-Ta Bulk Metallic Glass and Determining the Formation Range of Bulk Metallic Glass and Finding the Best Metallic Glass Composition Alloy

Method used

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  • Ni-Fe-B-Si-Ta bulk metallic glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Example 1 Ni 49.4 Fe 21.1 B 17.7 Si 7.8 Ta 4 Preparation and performance testing of bulk metallic glasses

[0041] Step 1: Weighing of ingredient ratio

[0042] The composition is designed according to the atomic percentage. In the process of weighing the raw materials, the alloy atomic percentage Ni 49.4 Fe 21.1 B 17.7 Si 7.8 Ta 4 Converted to weight percent Ni 55.6 Fe 22.6 B 3.7 Si 4.2 Ta 13.9 , weighing the raw materials of pure metal Ni, Fe, B, Si and Ta with a purity of 99.9% in proportion, for subsequent use;

[0043] Step 2: Alloy ingot melting

[0044] Put the mixture of Ni, Fe, B, Si and Ta according to the above-mentioned composition ratio in the water-cooled copper crucible of the electric arc melting furnace, and use the non-consumable arc melting method to melt under the protection of argon, and repeatedly melt for at least 3 times to obtain an alloy ingot with uniform composition;

[0045] Step 3: Preparation of bulk metallic glass

[004...

Embodiment 2

[0049] Example 2 Ni 45.8 Fe 24.7 B 17.7 Si 7.8 Ta 4 Preparation and performance testing of bulk metallic glasses

[0050] Step 1: Weighing of ingredient ratio

[0051] The composition is designed according to the atomic percentage. In the process of weighing the raw materials, the alloy atomic percentage Ni 45.8 Fe 24.7 B 17.7 Si 7.8 Ta 4 Converted to weight percent Ni 51.7 Fe 26.5 B 3.7 Si 4.2 Ta 13.9 , weighing the raw materials of pure metal Ni, Fe, B, Si and Ta with a purity of 99.9% in proportion, for subsequent use;

[0052] Step 2: Alloy ingot melting

[0053] Step 3: Preparation of bulk metallic glass

[0054] Step two and step three are the same as step two and step three in embodiment one;

[0055] Step 4: Bulk Metallic Glass Structure and Performance Test

[0056] X-ray detection and thermal analysis test are the same as embodiment one, and the thermodynamic parameters recorded are respectively T g =793K, T x =832K, T g / T l =0.611; Vickers har...

Embodiment 3

[0057] Example 3 Ni 42.3 Fe 28.2 B 17.7 Si 7.8 Ta 4 Preparation and performance testing of bulk metallic glasses

[0058] Step 1: Weighing of ingredient ratio

[0059] The composition is designed according to the atomic percentage. In the process of weighing the raw materials, the alloy atomic percentage Ni 42.3 Fe 28.2 B 17.7 Si 7.8 Ta 4 Converted to weight percent Ni 47.9 Fe 30.3 B 3.7 Si 4.2 Ta 13.9 , weighing the raw materials of pure metal Ni, Fe, B, Si and Ta with a purity of 99.9% in proportion, for subsequent use;

[0060] Step 2: Alloy ingot melting

[0061] Step 3: Preparation of bulk metallic glass

[0062] Step two and step three are the same as step two and step three in embodiment one;

[0063] Step 4: Bulk Metallic Glass Structure and Performance Test

[0064] X-ray detection and thermal analysis test are the same as embodiment one, and the thermodynamic parameters recorded are respectively T g =792K, T x =829K, T g / T l =0.601; the Vickers...

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Abstract

The invention relates to Ni-Fe-B-Si-Ta bulk metallic glass which belongs to the technical field of new materials. The Ni-Fe-B-Si-Ta bulk metallic glass comprises elements of Ni, Fe, B, Si and Ta and is formed by adding a little amount of Ta to carry out alloying based on a Ni-B-Si ternary system and using Fe to replace a part of Ni. The general formula of the component forming the bulk metallic glass is NixFeyBzSimTan, wherein the atom percentage x of element Ni is 9.72-71.2 at. percent, the atom percentage y of element Fe is 9.72-71.2 at. percent, the atom percentage z of element B is 9.1-28.5 at. percent, the atom percentage m of element Si is 5.5-9.1 at. percent, and x+y+z+m=n=100 at. percent; and the component of typical bulk metallic glass is Ni45.8Fe24.7B17.7Si7.8Ta4. The invention overcomes the casualness of component selection and develops new Ni-Fe-B-Si-Ta bulk metallic glass; and Fe and Ta respectively carry out replacement for similar components and alloying on the three components to determine the component range and the best component of the bulk metallic glass, and a metal glass stick with the largest diameter of 3mm can be manufactured by the common copper mold suction casting method.

Description

technical field [0001] The invention belongs to the technical field of new materials and relates to a Ni-Fe-B-Si-Ta bulk metallic glass with large glass forming ability, high strength and high corrosion resistance. Background technique [0002] Amorphous metal alloys are a class of 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 the glass forming ability of the alloy, the preparation of this type of material 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-dimensional materials such as powder, thin strip, etc., and its application range is therefore are greatly restricted. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/00C22C45/02C22C45/04
Inventor 王清董闯王英敏朱春雷羌建兵
Owner DALIAN UNIV OF TECH
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