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B2 phase toughened non-crystal composite and preparation method thereof

A technology of amorphous composite materials and composite materials, applied in the field of B2 phase toughened amorphous composite materials and its preparation, can solve the problems of easy cracks, poor mechanical properties, poor bonding force between the second phase and the amorphous matrix, etc. problems, achieve large elastic limit, excellent mechanical properties, and improve the effect of structural applications

Inactive Publication Date: 2019-02-22
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing technology, the second phase is introduced into the amorphous composite material through the external method. Due to the poor bonding force between the second phase and the amorphous matrix, the defects in the alloy are relatively obvious, and it is easy to produce when compression or stretching occurs. Cracks, so its mechanical properties are not good

Method used

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  • B2 phase toughened non-crystal composite and preparation method thereof
  • B2 phase toughened non-crystal composite and preparation method thereof
  • B2 phase toughened non-crystal composite and preparation method thereof

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Embodiment 1

[0015] The B2 phase toughens the amorphous composite material, and the atomic ratio of the composite material is (ZrCo) 100 Cu 0 .

[0016] The preparation method of the B2 phase toughened amorphous composite material, its specific steps are as follows:

[0017] Will follow (ZrCo) 100 Cu 0 For batching, put the component metals (Zr, Co, Cu with a purity greater than 99.99%) in an electric arc melting furnace for melting. During the melting process, pump to a vacuum of 5×10 -5 Pa, then fill Ar gas with a purity of 99.9999% to an atmospheric pressure, heat the arc melting furnace until the temperature is above the melting point of the alloy (1890°C) and melt evenly, then the alloy is rapidly cooled to room temperature at a cooling rate of 1000K / s, and then the alloy is The ingot is turned over, remelted, and repeated 4 times to obtain the master alloy. After the master alloy is remelted, it is suction-cast into a block through a copper mold (ZrCo) 100 Cu 0 Amorphous compos...

Embodiment 2

[0020] The B2 phase toughens the amorphous composite material, and the atomic ratio of the composite material is (ZrCo) 98 Cu 2 .

[0021] The preparation method of the B2 phase toughened amorphous composite material, its specific steps are as follows:

[0022] Will follow (ZrCo) 98 Cu 2 For batching, put the component metals (Zr, Co, Cu with a purity greater than 99.99%) in an electric arc melting furnace for melting. During the melting process, pump to a vacuum of 5×10 -5 Pa, and then fill Ar gas with a purity of 99.9999% to an atmospheric pressure, heat the arc melting furnace to a temperature above the melting point of the alloy (1890°C) and melt evenly, then the alloy is rapidly cooled to room temperature at a cooling rate of 1000 K / s, and then The alloy ingot is turned over, remelted, and repeated 5 times to obtain the master alloy. After the master alloy is remelted, it is suction-cast into a block through a copper mold (ZrCo) 98 Cu 2 Amorphous composite material ...

Embodiment 3

[0025] The B2 phase toughens the amorphous composite material, and the atomic ratio of the composite material is (ZrCo) 96 Cu 4 .

[0026] The preparation method of the B2 phase toughened amorphous composite material, its specific steps are as follows:

[0027] Will follow (ZrCo) 96 Cu 4 For batching, put the component metals (Zr, Co, Cu with a purity greater than 99.99%) in an electric arc melting furnace for melting. During the melting process, pump to a vacuum of 5×10 -5 Pa, then fill Ar gas with a purity of 99.9999% to an atmospheric pressure, heat the arc melting furnace until the temperature is above the melting point of the alloy (1890°C) and melt evenly, then the alloy is rapidly cooled to room temperature at a cooling rate of 1000K / s, and then the alloy is The ingot is turned over, remelted, and repeated 10 times to obtain the master alloy. After the master alloy is remelted, it is suction-cast into a block through a copper mold (ZrCo) 96 Cu 4 Amorphous composit...

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Abstract

The invention relates to a B2 phase toughened non-crystal composite and preparation method thereof, and belongs to the technical field of non-crystal composites. The atomic ratio of the B2 phase toughened non-crystal composite is (ZrCo)<100-x>Cu<x>, wherein x is 0-8. The preparation method comprises the following steps of preparing materials according to (ZrCo)<100-x>Cu<x>, placing each metal ingredient in an arc melting furnace for melting, and then performing quick cooling on an alloy to room temperature at a cooling speed being 1000 K / s; then overturning alloy ingots, and performing meltingagain for at least four times, so as to obtain a master alloy; and performing remelting on the master alloy, so as to obtain block-shaped (ZrCo)<100-x>Cu<x> non-crystal composites through copper moldsuction molding. According to the preparation method disclosed by the invention, Cu elements in the ZrCoCu alloy are adjusted; and by a water cooled copper mold method, during quick solidification, the ZrCoCu alloy can produce a B2 ( CsCl structure ) CuZr phase and a CoZr phase, and then the plastic toughness of the non-crystal composite can be increased.

Description

technical field [0001] The invention relates to a B2 phase toughened amorphous composite material and a preparation method thereof, belonging to the technical field of amorphous composite materials. Background technique [0002] Due to the special atomic structure of amorphous alloys, compared with traditional crystalline alloys, it has some unique physical, chemical and mechanical properties. Therefore, these characteristics make this material have good application prospects. It is widely used in micro precision devices, military fields, magnetic applications, sporting goods and biomedical materials. Series of excellent mechanical properties, but lack of plasticity is a common problem of most amorphous alloys and amorphous composites. Therefore, the problem of room temperature brittleness has developed into an important bottleneck for the application of BMG materials. In order to improve the room temperature brittleness and room temperature softening of bulk amorphous al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/10C22C1/03
CPCC22C1/03C22C45/10C22C1/11
Inventor 谭军邓攀董权黄瑞李敏张帆王蝶
Owner KUNMING UNIV OF SCI & TECH
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