Cuazrbalcmd amorphous alloy composite material with ductile crystal phase and homogenization method of its crystal phase

A composite material and amorphous alloy technology, which is applied in the field of uniform crystal phase in CuaZrbAlcMd amorphous alloy matrix composite material, can solve the problems of crystal phase size and uneven distribution, and achieve excellent tensile plasticity and work hardening performance , the effect of excellent mechanical properties

Inactive Publication Date: 2011-12-21
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of crystal phase size and inhomogeneous distribution in the copper-zirconium-based bulk amorphous alloy composite material toughened by CuZr (B2) phase particles, thereby designing a a Zr b Al c m d The homogenization method of the crystal phase in the amorphous alloy matrix composite material provides an amorphous alloy composite material with uniform crystal phase particle size and distribution, and improves the mechanical properties of the material

Method used

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  • Cuazrbalcmd amorphous alloy composite material with ductile crystal phase and homogenization method of its crystal phase
  • Cuazrbalcmd amorphous alloy composite material with ductile crystal phase and homogenization method of its crystal phase
  • Cuazrbalcmd amorphous alloy composite material with ductile crystal phase and homogenization method of its crystal phase

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1 Cu 47 Zr 47.1 al 5 Ta 0.9 bulk amorphous alloy composites

[0036] Step 1: Ingredients

[0037] According to Cu 47 Zr 47.1 al 5 Ta 0.9 The target composition is prepared by weighing Cu, Zr, Al, and Ta elements to obtain smelting raw materials, and the mass percentage purity of each element is not less than 99.0%;

[0038] Step 2: Smelting Alloy

[0039] Put the smelting raw materials into a vacuum electric arc furnace for smelting, and smelt them evenly under the protective atmosphere of high-purity argon with a mass percentage purity of 99.999% to obtain Cu 47 Zr 47.1 al 5 Ta 0.9 alloy ingot;

[0040] Melting parameters: the vacuum degree of the vacuum electric arc furnace during smelting is 1×10 -2 Pa;

[0041] The melting temperature is 1500°C;

[0042] Melting time is 5min;

[0043] Step 3: Casting of bulk amorphous alloy

[0044] The Cu prepared in step 2 47 Zr 47.1 al 5 Ta 0.9 The alloy ingot is put into the induction furnace of t...

Embodiment 2

[0054] Example 2 Cu 47 Zr 47.1 al 5 W 0.1 bulk amorphous alloy composites

[0055] Step 1: Ingredients

[0056] According to Cu 47 Zr 47.1 al 5 W 0.1 The target composition is prepared by weighing Cu, Zr, Al, and W elements to obtain smelting raw materials, and the mass percentage purity of each element is not less than 99.0%;

[0057] Step 2: Smelting Alloy

[0058] Put the smelting raw materials into a vacuum electric arc furnace for smelting, and smelt them evenly under an argon protective atmosphere with a purity of 99.999% by mass, and then take them out to obtain Cu 47 Zr 47.1 al 5 W 0.1 alloy ingot;

[0059] Melting parameters: the vacuum degree of the vacuum electric arc furnace during smelting is 5×10 -3 Pa;

[0060] The melting temperature is 1800°C;

[0061] Melting time is 4min;

[0062] Step 3: Casting of bulk amorphous alloy

[0063] The Cu prepared in step 2 47 Zr 47.1 al 5 W 0.1 The alloy ingot is put into the induction furnace of the ra...

Embodiment 3

[0071] Example 3 Cu 49 Zr 45 al 5 W 0.6 Nb 0.4 bulk amorphous alloy composites

[0072] Step 1: Ingredients

[0073] According to Cu 49 Zr 45 al 5 W 0.6 Nb 0.4 The target composition is prepared by weighing Cu, Zr, Al, W, and Nb elements to obtain smelting raw materials, and the mass percentage purity of each element is not less than 99.0%;

[0074] Step 2: Smelting Alloy

[0075] Put the smelting raw materials into a vacuum electric arc furnace for smelting, and smelt them evenly under an argon protective atmosphere with a purity of 99.999% by mass, and then take them out to obtain Cu 49 Zr 45 al 5 W 0.6 Nb 0.4 alloy ingot;

[0076] Melting parameters: the vacuum degree of the vacuum electric arc furnace during smelting is 3×10 -3 Pa;

[0077] The melting temperature is 1700°C;

[0078] Melting time is 5min;

[0079] Step 3: Casting of bulk amorphous alloy

[0080] The Cu prepared in step 2 49 Zr 45 Al 5 W 0.6 Nb 0.4 The alloy ingot is put into the i...

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Abstract

The invention discloses a CuaZrbAlcMd amorphous alloy composite material with a ductile crystal phase and a homogenization method for the crystal phase thereof. In CuaZrbAlcMd, a, b, c and d are the molar percentages, 44 <= a <= 50, 44 <= b <= 50, 3 <= c <= 7, 0.05 <= d <= 1.50, and a + b + c + d = 100; and M is one or the combination of more than two of the metals, namely Ta, W, Mo, Nb, Hf and Re. In the invention, the target component alloy is firstly smelted in an arc furnace under the protection of inert atmosphere, then various sizes and shapes of bulk amorphous alloy are prepared by spray casting, suction casting or water quenching and other rapid solidification methods, and the performance analysis is finally carried out on the obtained alloy. The composite material prepared by themethod disclosed by the invention has a structure that ductile crystal phase particles are uniformly distributed on an amorphous alloy matrix, and the crystal phase particles can carry out martensitic phase transformation in a force-deformation process, so that the composite material has significant tensile ductility and work hardening characteristics and other excellent mechanical properties.

Description

technical field [0001] The present invention relates to a kind of method that crystal grain is carried out homogenization, more particularly, refers to a method for Cu a Zr b Al c m d Homogenization of crystalline phases in amorphous alloy matrix composites. Background technique [0002] Bulk amorphous alloys have high yield strength, high hardness, high elastic deformation limit, strong wear resistance, strong corrosion resistance, low elastic modulus and good supercooled liquid phase interval due to their unique atomic arrangement structure. Excellent properties such as processability, so it shows broad application prospects in the fields of aerospace, precision instruments, biomedicine and electronic information. However, the plastic deformation of amorphous alloys at room temperature mainly relies on highly localized shear bands, which exhibit significant room temperature brittleness and strain softening, which limits their applications as structural materials. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/00
Inventor 李然刘增乾张涛
Owner BEIHANG UNIV
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