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Wear-resistant amorphous-dendritic crystal composite material and preparation method thereof

A composite material and amorphous technology, which is applied in the field of wear-resistant amorphous materials, can solve problems such as poor wear resistance and hinder the process, and achieve the effects of making up for the lack of wear resistance, improving wear resistance, and simple operation

Active Publication Date: 2019-06-14
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Titanium-based amorphous composites have excellent mechanical properties and have great potential in engineering applications, but the wear resistance of amorphous composites usually containing dendrite phase is poor, which seriously hinders the process of its practical application

Method used

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  • Wear-resistant amorphous-dendritic crystal composite material and preparation method thereof
  • Wear-resistant amorphous-dendritic crystal composite material and preparation method thereof
  • Wear-resistant amorphous-dendritic crystal composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A wear-resistant amorphous-dendritic composite material Ti 45 Zr 25 Nb 6 Cu 5 be 17 sn 2 The preparation method comprises the following steps:

[0032] S1. Surface treatment of raw materials:

[0033] Clean each elemental element Ti, Zr, Nb, Cu, Be, and Sn (purity ≥ 99.9%) ultrasonically for 20 minutes with ethanol, and dry it with a hair dryer, and then weigh the treated elemental elements: 15.115gTi, 16.003 g Zr, 3.912g Nb, 2.241g Cu, 1.075g Be, 1.674g Sn;

[0034] S2. Alloy smelting: Put the Cu and Sn raw materials treated in S1 into a quartz crucible, then place them in the induction coil of the induction melting furnace, close the furnace door, extract the vacuum and fill it with high-purity argon to 0.05Mpa. At the beginning, use low power to heat to 500°C, keep it warm for 5 minutes so that the molten glass can completely cover the alloy, then increase the power to raise the temperature to 1100°C and keep it for 10 minutes to fully melt the alloy, then turn ...

Embodiment 2

[0040] A wear-resistant amorphous-dendritic composite material Ti 43 Zr 25 Nb 6 Cu 5 be 17 sn 4 The preparation method comprises the following steps:

[0041] S1. Surface treatment of raw materials:

[0042] Clean each elemental element Ti, Zr, Nb, Cu, Be, and Sn (purity ≥ 99.9%) ultrasonically for 20 minutes with ethanol, and dry it with a hair dryer, and then weigh the treated elemental elements: 14.093gTi, 15.615 g Zr, 3.817g Nb, 2.186g Cu, 1.049g Be, 3.267g Sn;

[0043] S2. Alloy smelting: Put the Cu and Sn raw materials treated in S1 into a quartz crucible, then place them in the induction coil of the induction melting furnace, close the furnace door, extract the vacuum and fill it with high-purity argon to 0.05Mpa. At the beginning, use low power to heat to 500°C, keep it warm for 5 minutes so that the molten glass can completely cover the alloy, then increase the power to raise the temperature to 1100°C and keep it for 10 minutes to fully melt the alloy, then tur...

Embodiment 3

[0049] A wear-resistant amorphous-dendritic composite material Ti 41 Zr 25 Nb 6 Cu 5 be 17 sn 6 The preparation method comprises the following steps:

[0050] S1. Surface treatment of raw materials:

[0051] The elemental elements Ti, Zr, Nb, Cu, Be and Sn (purity ≥ 99.9%) were ultrasonically cleaned with ethanol for 20 minutes, and dried with a hair dryer, and then the treated elemental elements were weighed: 13.12gTi, 15.245 g Zr, 3.726g Nb, 2.124g Cu, 1.024g Be, 4.761g Sn;

[0052] S2. Alloy smelting: Put the Cu and Sn raw materials treated in S1 into a quartz crucible, then place them in the induction coil of the induction melting furnace, close the furnace door, extract the vacuum and fill it with high-purity argon to 0.05Mpa. At the beginning, use low power to heat to 500°C, keep it warm for 5 minutes so that the molten glass can completely cover the alloy, then increase the power to raise the temperature to 1100°C and keep it for 10 minutes to fully melt the allo...

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Abstract

The invention discloses a wear-resistant amorphous-dendritic crystal composite material and a preparation method of the wear-resistant amorphous-dendritic crystal composite material, and belongs to the technical field of wear-resistant amorphous materials. The chemical formula of the wear-resistant amorphous-dendritic crystal composite material is Ti47-xZr25Nb6Cu5Be17Snx, wherein x represents thenumber of atoms of the element Sn, and x ranges from 2 to 6. The preparation method comprises the following steps of (1) smelting simple substances Cu and Sn through induction melting to obtain a first intermediate alloy; (2) smelting simple substances Ti, Zr and Be through electric arc smelting to obtain a second intermediate alloy; (3) melting the first intermediate alloy and the second intermediate alloy together through electric arc smelting to form a third intermediate alloy; (4) adding the simple substance Nb into the third intermediate alloy through electric arc smelting to obtain a Ti47-xZr25Nb6Cu5Be17Snx alloy ingot; and (5) melting the alloy ingot and casting the alloy ingot into a plate-shaped copper mold by using turnover casting equipment. The preparation method is easy to carry out, components and structures are uniform, and the friction wear resistance of the obtained amorphous-dendritic crystal composite material is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of wear-resistant amorphous materials, and in particular relates to a wear-resistant amorphous-dendrite composite material and a preparation method thereof. Background technique [0002] Amorphous alloys, also known as metallic glasses, are materials with many novel properties. Amorphous state refers to the arrangement state of long-range disorder and short-range order in the internal atomic structure of a substance. Due to its unique disordered structure, it does not have defects such as dislocations and vacancies in crystalline materials. Therefore, amorphous alloys have excellent Mechanical, physical and chemical properties, such as high strength (about 1 / 50 Young's modulus), high corrosion resistance, excellent magnetic properties and superplasticity at a certain temperature. These excellent physical, chemical and mechanical properties and good forming properties make amorphous alloys have broad applica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C30/04C22C1/03C22C45/10
Inventor 周青任越杜银翟海民王海丰
Owner NORTHWESTERN POLYTECHNICAL UNIV
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