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A kind of large plastic Zrcuagalbe series bulk metallic glass and preparation method thereof

A metallic glass and large plasticity technology, which is applied in the field of large plastic ZrCuAgAlBe bulk metallic glass and its preparation, can solve the problems of difficulty in obtaining amorphous alloys and slowing down of cooling speed, so as to improve plastic deformation ability and reduce shear The effect of resistance and high hardness

Active Publication Date: 2016-07-27
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the same conditions, as the sample size increases, the cooling rate slows down, making it difficult to obtain large-sized amorphous alloys

Method used

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  • A kind of large plastic Zrcuagalbe series bulk metallic glass and preparation method thereof
  • A kind of large plastic Zrcuagalbe series bulk metallic glass and preparation method thereof
  • A kind of large plastic Zrcuagalbe series bulk metallic glass and preparation method thereof

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preparation example Construction

[0030] The preparation method of the present invention comprises the following steps:

[0031] 1) Put Zr, Cu, Ag, Al, and Be metal raw materials in the first copper boat of the arc melting furnace according to the ratio of 46-58.5: 18.08-31.43: 4.6-8.36: 4.4-14.8: 4.13-7.5, Zr , Cu, Ag, Al, and Be metal raw materials have a mass purity of 99% to 99.999%; in addition, the Zr ingot is placed in the second copper boat of the arc melting furnace, and the quality of the Zr ingot is the same as that of Zr, Cu, Ag, Al, The ratio of the total mass of Be metal raw materials is 1:2 to 1:5;

[0032] 2) Vacuumize the arc melting furnace until the pressure in the furnace is 3×10 -3 Pa, and then fill the arc melting furnace with 98% Ar gas by volume until it is equal to the external atmospheric pressure;

[0033] 3) The Zr ingot in the second copper boat of the melting arc melting furnace consumes oxygen for 1-2 minutes, and the melting temperature is at least 2000 degrees Celsius;

[00...

Embodiment 1

[0042]1) Put Zr, Cu, Ag, Al, and Be metal raw materials in the first copper boat of the arc melting furnace according to the ratio of 46:30.14:8.36:8:7.5, Zr, Cu, Ag, Al, Be metal raw materials The respective mass purity is 99.9%, 99.95%, 99.999%, 99.8%, 99%; in addition, the Zr ingot is placed in the second copper boat of the electric arc melting furnace, and the quality of the Zr ingot is the same as that of Zr, Cu, Ag, Al, The total mass ratio of Be metal raw materials is 1:2;

[0043] 2) Vacuumize the arc melting furnace until the pressure in the furnace is 3×10-3Pa, and then fill the arc melting furnace with Ar gas with a volume percentage of 98% until it is equal to the external atmospheric pressure;

[0044] 3) The Zr ingot in the second copper boat of the melting arc melting furnace consumes oxygen for 1 minute, and the melting temperature is at least 2000 degrees Celsius;

[0045] 4) Then smelt the Zr, Cu, Ag, Al, and Be metal raw materials in the first copper boat o...

Embodiment 2

[0050] 1) Put Zr, Cu, Ag, Al, Be metal raw materials in the first copper boat of the arc melting furnace according to the ratio of 54.1:25.62:7.11:6.8:6.37, Zr, Cu, Ag, Al, Be metal raw materials The respective mass purity is 99.9%, 99.95%, 99.999%, 99.8%, 99%; in addition, the Zr ingot is placed in the second copper boat of the electric arc melting furnace, and the quality of the Zr ingot is the same as that of Zr, Cu, Ag, Al, The total mass ratio of Be metal raw materials is 1:4;

[0051] 2) Vacuumize the arc melting furnace until the pressure in the furnace is 3×10-3Pa, and then fill the arc melting furnace with Ar gas with a volume percentage of 98% until it is equal to the external atmospheric pressure;

[0052] 3) The Zr ingot in the second copper boat of the melting arc melting furnace consumes oxygen for 1.5 minutes, and the melting temperature is at least 2000 degrees Celsius;

[0053] 4) Then smelt the Zr, Cu, Ag, Al, Be metal raw materials in the first copper boat ...

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Abstract

The invention discloses high-plasticity ZrCuAgAlBe bulk metal glass and a preparation method thereof. The high-plasticity ZrCuAgAlBe bulk metal glass has the structural formula: [Zr46Cu30.14Ag8.36Al8Be7.5](100-x)(Zr100-yMy)x. The preparation method comprises the steps of placing all metal raw materials into an arc-melting furnace; placing a Zr ingot into the arc-melting furnace, and charging Ar gas after evacuating; melting the Zr ingot in the arc-melting furnace to consume oxygen; then, melting all the metal raw materials to obtain an alloy melt, or opening a bottom vacuum valve to absorb all the metal raw materials into a copper mould, and completely cooling to obtain the high-plasticity ZrCuAgAlBe bulk metal glass. The bulk metal glass disclosed by the invention is favorable in plasticity, relatively high in glass forming capacity, high in strength and hardness and favorable in thermal stability, wear resistance and corrosion resistance so as to have wide application prospects, and the maximum size of a completely-amorphous alloy rod is about 6mm.

Description

technical field [0001] The invention relates to a metallic glass and a preparation method thereof, in particular to a large plastic ZrCuAgAlBe-based bulk metallic glass and a preparation method thereof. Background technique [0002] Metallic glass refers to a new type of alloy material with disordered structure at the atomic scale. Among them, the atoms are combined by metal bonds, while the atomic combination in traditional amorphous oxide glasses is covalent bonds. Therefore, metallic glasses have some special properties of metal materials. And because it does not have grain boundaries, dislocations and long-range order of atomic arrangement, it has excellent properties different from crystalline metal materials, such as high strength and hardness, large elastic limit, good wear resistance and corrosion resistance Performance, excellent magnetic properties and other physical and chemical properties. Due to its unique properties, it has been widely used in many fields suc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/02C22C45/10
Inventor 蒋建中金建彪曹庆平张东武马毅
Owner ZHEJIANG UNIV
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