A kind of preparation method of Zr-based bulk amorphous alloy with low oxygen content

A technology of amorphous alloys and low oxygen content, which is applied in the field of preparation of low oxygen content Zr-based bulk amorphous alloys, can solve the problems of increased volume occupied by crystal phases, decreased ability of Zr-based alloys to form amorphous, etc. control, improve and stabilize performance, and prevent gasification

Active Publication Date: 2022-06-24
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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  • A kind of preparation method of Zr-based bulk amorphous alloy with low oxygen content
  • A kind of preparation method of Zr-based bulk amorphous alloy with low oxygen content

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. Smelting operation

[0028] 1) The raw materials are fed in a manner 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, open the vacuum pump, and pump the vacuum degree of the melting furnace to within 5Pa;

[0030] 3) The power of the melting furnace is set to 30KW, the temperature is increased by power supply, and when the metal in the crucible begins to melt, the power is increased to 60KW for melting;

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

[0032] 5) Add the amorphous alloy into the crucible for vacuum smelting, the smelting temperature is 950 ° C, and use Al, Ti, Ca, Y composite stra...

Embodiment 2

[0037] 1. Ingredients

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

[0039] 2. Smelting operation

[0040] 1) The raw materials are fed in a manner 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, open the vacuum pump, and pump the vacuum degree of the melting furnace to within 5Pa;

[0042] 3) The power of the melting furnace is set to 50KW, the temperature is increased by power supply, and when the metal in the crucible begins to melt, the power is increased to 80KW for melting;

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

[0044] 5) Add the amorphous alloy into the crucible for vacuum smelting, the smelting temperature is 1300 ℃, and use Al, Ti, Ca, Y composite stranded ...

Embodiment 3

[0049] 1. Ingredients

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

[0051] 2. Smelting operation

[0052] 1) Feed the raw materials in a manner that the bulk material is close to the inner wall of the crucible, and the small material is close to the center of the crucible;

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

[0054] 3) The power of the melting furnace is set to 40KW, the temperature is increased by power supply, and when the metal in the crucible begins to melt, the power is increased to 70KW for melting;

[0055] 4) Melt until sputtering occurs, reduce the power to 20KW, turn off the vacuum pump, and at the same time fill the furnace with argon gas to increase the vacuum pressure value of the furnace body to 400Pa;

[0056] 5) Add the amorphous alloy into the crucible for vacuum smelting, the smelting temperature is 1150 ℃, and use Al, Ti, Ca, Y composite str...

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Abstract

The invention discloses a method for preparing Zr-based bulk amorphous alloy with low oxygen content. The oxygen content in the Zr-based amorphous alloy is reduced by adding skeined composite wires. Use a special twisted wire composite wire (Al, Ti, Ca, Y composite twisted wire) to control and reduce the oxygen content in the Zr-based amorphous alloy, and prevent the gasification of the composite twisted wire through a reasonable control process. Oxidation reaction, forming composite deoxidation products and removing them, so as to realize the control of low oxygen content of Zr-based bulk amorphous alloys. This process has strong operability and controllable components. The alloy has low oxygen content and strong amorphous forming ability, which is beneficial to improving and stabilizing the properties of the Zr-based amorphous alloy, and can be popularized and applied industrially.

Description

technical field [0001] The invention belongs to the field of amorphous alloy preparation, in particular to a preparation method of a Zr-based bulk amorphous alloy with low oxygen content. Background technique [0002] Amorphous alloys, also known as metallic glass or liquid metal, are a new type of metal material developed in the 1950s and 1960s using advanced rapid quench metallurgy technology and new alloy composition design concepts. order, short-range ordered microstructure features, 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 resistance, resistance Excellent mechanical and physical and chemical properties such as corrosion. Amorphous alloys have shown important application value in aerospace, information communication, micro-electromechanical, and daily life, and have attracted widespread attention. [0003] At present, the Zr-based...

Claims

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Application Information

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Patent Type & Authority Patents(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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