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Cu-M-O amorphous alloy and preparation method thereof

An amorphous alloy, cu-m-o technology, applied in the field of new materials, can solve the problems of reducing the strength, plasticity and thermal stability of amorphous alloys, increasing the process flow and production costs, etc., achieving excellent room temperature toughness, reducing production costs, The effect of simple process

Pending Publication Date: 2019-11-26
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of rare earth elements often reduces the strength, plasticity and thermal stability of these amorphous alloys, and correspondingly increases the process and production costs

Method used

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  • Cu-M-O amorphous alloy and preparation method thereof
  • Cu-M-O amorphous alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1 (Cu 75 m 25 ) 99.5 o 0.5 (M=Zr) amorphous

[0023] Step 1. Weighing and preparing alloys in proportion:

[0024] Put the atomic percentage composition (Cu 75 Zr 25 ) 99.5 o 0.5 Converted into weight percentage components, using sponge Zr (>99%), industrial pure Cu (>99.5%) and CuO / Cu 2 O (99.9%, the oxygen component in the alloy is composed of CuO / Cu 2 O provides, hereinafter the same) as raw material, calculates, weighs and prepares composition (Cu 75 Zr 25 ) 99.5 o 0.5 alloy.

[0025] Step 2. Preparation of alloy ingots by non-consumable arc melting method

[0026] Mix the raw materials and place them in a water-cooled copper crucible of a non-consumable arc melting furnace, then evacuate to 10Pa, fill in an industrial pure Ar atmosphere of 0.01MPa for melting, and the working current of the arc melting is 100; then put the alloy ingot up and down Flip over and repeat the smelting for 3 times to obtain an alloy ingot with uniform compositio...

Embodiment 2

[0030] Example 2Cu 65 m 35 and (Cu 65 m 35 )95 o 5 (M=Zr) Amorphous Thick Ribbon and Comparison of Thermal Stability

[0031] Step 1, prepare atomic percentage composition Cu 65 Zr 35 and (Cu 65 Zr 35 ) 95 o 5 Alloy:

[0032] Same as Step 1 in Embodiment 1.

[0033] Step 2, preparation of Cu 65 Zr 35 and (Cu 65 Zr 35 ) 95 o 5 Alloy ingot

[0034] The raw materials are mixed respectively and placed in a water-cooled copper crucible of a non-consumable arc melting furnace, then evacuated to 100Pa, filled with an industrial pure Ar atmosphere of 0.10MPa for melting, and the working current of the arc melting is 200A; then the alloy ingot Flip up and down, repeat smelting like this for 5 times, and obtain an alloy ingot with uniform composition. The weight loss of the alloy before and after smelting is less than 5 / 1000. 65 Zr 35 The weight loss of alloy ingot before and after smelting is 4 / 1000, and the preparation of Cu 65 Zr 35 The weight loss of the alloy ...

Embodiment 3

[0038] Embodiment 3 (Cu 25 m 75 ) 85 o 15 (M=Zr) amorphous

[0039] Step 1, atomic percent composition (Cu 25 Zr 75 ) 85 o 15 Alloy preparation:

[0040] Same as Step 1 in Embodiment 1.

[0041] Step two, (Cu 25 Zr 75 ) 85 o 15 Alloy ingot preparation

[0042] The raw materials are mixed respectively and placed in a water-cooled copper crucible of a non-consumable arc melting furnace, then evacuated to 50Pa, filled with an industrial pure Ar atmosphere of 0.05MPa for melting, and the working current of the arc melting is 150A; then the alloy ingot Flip up and down, and repeat the smelting process 3 times to obtain an alloy ingot with uniform composition. The weight loss of the alloy before and after smelting is 13 / 1000.

[0043] Step three, (Cu 25 Zr 75 ) 85 o 15 Preparation of Amorphous Strips

[0044] The alloy ingots prepared in step 2 are crushed and put into quartz tubes respectively, and the diameter of the nozzle of the quartz tube is about 1.2mm. Pu...

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Abstract

The invention discloses a Cu-M-O amorphous alloy and a preparation method thereof. The Cu-M-O amorphous alloy comprises Cu, M and O elements; oxygen is used as alloy components; the chemical formula is (Cu100-aMa)100-bOb, wherein a and b are atomic percentages, a is not smaller than 25 and not bigger than 75, and b is not smaller than 0.5 and not bigger than 15; M=Zr1-x-yTixHfy; x is not smaller than 0 and not bigger than 1; and y is not smaller than 0 and not bigger than 1. The preparation method uses Cu, M and CuO / Cu2O as raw materials, and can prepare complete-amorphous-state alloy strips with thicknesses of 10-500 microns under low vacuum through a non-self-consumption arc smelting method and a copper mold throwing strip quick quenching technology. The acknowledge of people about the effect on amorphous alloy formation by oxygen is broken through; oxygen is used as structural components for developing an oxygen-contained complete amorphous alloy to achieve theoretical and practicalvalues; the alloy preparation dose not need high vacuum, and is convenient and efficient; and the used raw materials are general industrial pure metal and compounds, so that the material production cost is low.

Description

technical field [0001] The invention belongs to the technical field of new materials, and relates to a Cu-M-O amorphous alloy and a preparation method thereof, in particular to a Cu-M-O (M=Zr 1-x-y Ti x f y , 0≤x≤1, 0≤y≤1) amorphous and preparation method thereof. Background technique [0002] Amorphous alloys are a new class of metastable materials developed in the 1960s. It is a kind of special alloy with long-range disorder and short-range order structure, and has unique properties unmatched by traditional crystalline metal materials, such as high strength and low modulus, high corrosion resistance, and viscous flow in the supercooled liquid phase region. And precision processing characteristics, and excellent hydrogen transport performance. Amorphous alloy materials have become an important research direction in the fields of condensed matter physics and materials science. [0003] Theoretically, as long as the cooling rate is fast enough, any alloy melt can avoid c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/00
CPCC22C45/001C22C1/11
Inventor 王英敏羌建兵魏明玉徐日升
Owner DALIAN UNIV OF TECH