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Preparation method of low-oxygen-content Zr-based bulk amorphous alloy

An amorphous alloy, low oxygen content technology, applied in the field of low oxygen content Zr-based bulk amorphous alloy preparation, can solve the problems such as the increase in the volume occupied by the crystal phase and the decrease in the amorphous forming ability of the Zr-based alloy, and the composition can be achieved. Control, improve and stabilize performance, prevent gasification

Active Publication Date: 2021-12-03
CHANGZHOU STREAM LIQUID METAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the increase of oxygen content, the volume occupied by its crystal phase will increase, so that the amorphous formation ability of Zr-based alloys will be significantly reduced.

Method used

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  • Preparation method of low-oxygen-content Zr-based bulk amorphous alloy
  • Preparation method of low-oxygen-content Zr-based bulk amorphous alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. Ingredients

[0026] Accurately weigh Zr52.5kg, Cu17.9kg, Ni14.6kg, Al10kg, Ti5kg.

[0027] 2. Melting operation

[0028] 1) Feed the raw materials in such a way that the large pieces are close to the inner wall of the crucible, and the small pieces are close to the center of the crucible;

[0029] 2) Close the furnace cover, turn on the vacuum pump, and pump the vacuum of the melting furnace to within 5Pa;

[0030] 3) Set the power of the melting furnace to 30KW, supply electricity to heat up, and when the metal in the crucible starts to melt, increase the power to 60KW for melting;

[0031] 4) Melt until splashing occurs, reduce the power to 10KW, turn off the vacuum pump, and fill the furnace with argon to increase the vacuum pressure of the furnace to 200Pa;

[0032] 5) Put the amorphous alloy into the crucible for vacuum melting, the melting temperature is 950°C, and use Al, Ti, Ca, Y composite twisted wire, and feed the crucible twice through the sealed wire...

Embodiment 2

[0037] 1. Ingredients

[0038] Accurately weigh Zr52.5kg, Cu17.9kg, Ni14.6kg, Al10kg, Ti5kg.

[0039] 2. Melting operation

[0040] 1) Feed the raw materials in such a way that the large pieces are close to the inner wall of the crucible, and the small pieces are close to the center of the crucible;

[0041] 2) Close the furnace cover, turn on the vacuum pump, and pump the vacuum of the melting furnace to within 5Pa;

[0042] 3) Set the power of the melting furnace to 50KW, supply electricity to heat up, and when the metal in the crucible starts to melt, increase the power to 80KW for melting;

[0043] 4) Melt until splashing occurs, reduce the power to 30KW, turn off the vacuum pump, and fill the furnace with argon to increase the vacuum pressure of the furnace to 500Pa;

[0044] 5) Put the amorphous alloy into the crucible for vacuum melting, the melting temperature is 1300°C, and use Al, Ti, Ca, Y composite twisted wire, and feed the crucible twice through the sealed wir...

Embodiment 3

[0049] 1. Ingredients

[0050] Accurately weigh Zr52.5kg, Cu17.9kg, Ni14.6kg, Al10kg, Ti5kg.

[0051] 2. Melting operation

[0052] 1) Feed the raw materials in such a way that the large pieces are close to the inner wall of the crucible, and the small pieces are close to the center of the crucible;

[0053] 2) Close the furnace cover, turn on the vacuum pump, and pump the vacuum of the melting furnace to within 5Pa;

[0054] 3) Set the power of the melting furnace to 40KW, supply electricity to heat up, and when the metal in the crucible starts to melt, increase the power to 70KW for melting;

[0055] 4) Melt until splashing occurs, reduce the power to 20KW, turn off the vacuum pump, and fill the furnace with argon to increase the vacuum pressure of the furnace to 400Pa;

[0056] 5) Put the amorphous alloy into the crucible for vacuum melting, the melting temperature is 1150°C, and use Al, Ti, Ca, Y composite twisted wire, and feed the crucible twice through the sealed wir...

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Abstract

The invention discloses a preparation method of a low-oxygen-content Zr-based bulk amorphous alloy. The oxygen content in the Zr-based amorphous alloy is reduced by adding a twisted wire composite wire. The oxygen content in the Zr-based amorphous alloy is controlled and reduced by utilizing the special twisted wire composite wire (Al, Ti, Ca and Y composite twisted wire), the composite twisted wire is prevented from being gasified and removed by forming a composite deoxidized product through an oxidation reaction in a solution through a reasonable control process, so that the low-oxygen content control of the Zr-based bulk amorphous alloy is realized, the process is high in operability, controllable in component and suitable for industrial production, compared with a traditional smelting and deoxidizing process, the Zr-based bulk amorphous alloy is low in oxygen content and high in amorphous forming capacity, the performance of the Zr-based amorphous alloy is improved and stabilized, and industrial application and popularization can be achieved.

Description

technical field [0001] The invention belongs to the field of amorphous alloy preparation, in particular to a method for preparing a Zr-based block amorphous alloy with low oxygen content. Background technique [0002] Amorphous alloy, also known as metallic glass or liquid metal, is a new type of metal material developed in the 1950s and 1960s by using advanced rapid quenching metallurgy technology and new alloy composition design concepts. Order, short-range ordered microstructure characteristics, and there are no defects such as dislocations, grain boundaries, and stacking faults, so it has high hardness, high strength, large elastic strain limit, low elastic modulus, and wear and tear resistance. Corrosion and other excellent mechanical and physical and chemical properties. Amorphous alloys have shown important application value in aerospace, information communication, micro-electromechanical, and daily life, and have attracted widespread attention. [0003] At present,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/10
CPCC22C45/10C22C1/11
Inventor 王艳林周青峰申曦王自东郭文文陈晓华
Owner CHANGZHOU STREAM LIQUID METAL CO LTD
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