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(Ti-Cu-Ni-Zr)-Sn amorphous composite and preparation method thereof

A technology of ti-cu-ni-zr and amorphous composite materials, which is applied in the field of titanium-based amorphous composite materials and its preparation, can solve problems such as weak glass forming ability, eliminate potential safety hazards, suppress the formation of brittle phases, The effect of broadening the prospects for development

Active Publication Date: 2015-12-09
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ti-Cu-Ni metallic glasses can be divided into Cu-rich Ti-Cu-Ni metallic glasses and Ni-rich Ti-Cu-Ni metallic glasses. Cu-rich Ti-Cu-Ni alloys have relatively good Glass forming ability, such as Ti 41.5 Cu 42.5 Ni 7.5 Zr 2.5 f 5 Si 1 、Ti 41.5 Cu 37.5 Ni 7.5 Zr 2.5 f 5 sn 5 Si 1 、Ti 45 Zr 5 Cu 45 Ni 5 、Ti 42.5 Zr 7.5 Cu 45 Ni 5 and Ti 42.5 Zr 7.5 Cu 40 Ni 5 sn 5 , with a maximum diameter of 3-6mm; and Ti 50 Cu 25 Ni 25 Alloys developed on the basis of Cu (relatively low Cu content) have weak glass forming ability, and usually only thin strip samples with a diameter of <2mm can be prepared.

Method used

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  • (Ti-Cu-Ni-Zr)-Sn amorphous composite and preparation method thereof
  • (Ti-Cu-Ni-Zr)-Sn amorphous composite and preparation method thereof
  • (Ti-Cu-Ni-Zr)-Sn amorphous composite and preparation method thereof

Examples

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Embodiment 1

[0024] This embodiment is a (Ti-Cu-Ni-Zr)-Sn based amorphous composite material.

[0025] The (Ti-Cu-Ni-Zr)-Sn series amorphous composite material described in this example is composed of five elements including Ti, Cu, Ni, Zr and Sn, and its atomic percentage is (Ti 45 Cu 39 Ni 11 Zr 5 ) 98 sn 2 , wherein, Ti, Cu, Ni, Zr and Sn are block, and the purity is ≥99.99%.

[0026] The preparation process of the (Ti-Cu-Ni-Zr)-Sn series amorphous composite material proposed in this example is as follows:

[0027] The first step is the surface treatment of raw materials. The weighed Ti, Cu, Ni, Zr and Sn were removed by pickling to remove the surface scale, and then the oil was removed by ultrasonic vibration.

[0028] The second step is to prepare alloy ingots through high vacuum arc melting and suction casting equipment. Using a conventional arc melting method, under the protection of high-purity argon, the surface-treated raw materials were smelted for the first time, with a...

Embodiment 2

[0032] This embodiment is a (Ti-Cu-Ni-Zr)-Sn based amorphous composite material.

[0033] The (Ti-Cu-Ni-Zr)-Sn series amorphous composite material described in this example is composed of five elements including Ti, Cu, Ni, Zr and Sn, and its atomic percentage is (Ti 45 Cu 41 Ni 9 Zr 5 ) 98 sn 2 , wherein, Ti, Cu, Ni, Zr and Sn are block, and the purity is ≥99.99%.

[0034] The preparation process of the (Ti-Cu-Ni-Zr)-Sn series amorphous composite material proposed in this example is as follows:

[0035] The first step is the surface treatment of raw materials. The weighed Ti, Cu, Ni, Zr and Sn were removed by pickling to remove the surface scale, and then the oil was removed by ultrasonic vibration.

[0036] The second step is to prepare alloy ingots through high vacuum arc melting and suction casting equipment. Using a conventional arc melting method, under the protection of high-purity argon, the surface-treated raw materials were smelted for the first time, with a ...

Embodiment 3

[0040] This embodiment is a (Ti-Cu-Ni-Zr)-Sn based amorphous composite material.

[0041] The (Ti-Cu-Ni-Zr)-Sn series amorphous composite material described in this example is composed of five elements including Ti, Cu, Ni, Zr and Sn, and its atomic percentage is (Ti 45 Cu 42.5 Ni 7.5 Zr 5 ) 98 sn 2 , wherein, Ti, Cu, Ni, Zr and Sn are block, and the purity is ≥99.99%.

[0042] The preparation process of this example is as follows:

[0043] The first step is the surface treatment of raw materials. The weighed Ti, Cu, Ni, Zr and Sn were removed by pickling to remove the surface scale, and then the oil was removed by ultrasonic vibration.

[0044]The second step is to prepare alloy ingots through high vacuum arc melting and suction casting equipment. Using a conventional arc melting method, under the protection of high-purity argon, the surface-treated raw materials were smelted for the first time, with a smelting current of 400A and a smelting time of 5 minutes. After ...

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Abstract

The invention relates to a (Ti-Cu-Ni-Zr)-Sn amorphous composite and a preparation method of the (Ti-Cu-Ni-Zr)-Sn amorphous composite. The (Ti-Cu-Ni-Zr)-Sn amorphous composite comprises Ti, Cu, Ni, Zr and Sn, and an atomic percent of the composite is as follows: (Ti[45]Cu[39-42.5]Ni[7.5-11]Zr[5])[98]Sn[2]. The Ti-based amorphous composite with high rupture strength and certain plasticity is obtained by selecting an alloy system free from a toxic element Be, reasonably adjusting an element proportion and adding a little element Sn. The prepared alloy comprises an amorphous phase and a beta-Ti dendritic crystal reinforcing phase, so that the alloy shows superhigh mechanical property matching, the yield strength sigma[y] is greater than or equal to 1310MPa, the compressive strength sigma[bc] is greater than or equal to 2460MPa, and the plastic strain epsilon[p] before rupture is greater than or equal to 9.3%.

Description

technical field [0001] The invention relates to the field of amorphous alloys, in particular to a titanium-based amorphous composite material with ultrahigh strength and certain plasticity and a preparation method thereof. Background technique [0002] Due to its high strength, low density and good corrosion resistance, titanium-based amorphous alloys have very potential application prospects in aviation, aerospace, micro-machines, sports equipment and other fields. However, Ti-based amorphous composites with a critical size greater than 5mm usually contain Be, and Be and its alloys are highly toxic, and can cause cancer if swallowed and inhaled, which greatly limits the application of amorphous composites. Therefore, it is of great significance to obtain Ti-based amorphous composites that do not contain Be and have good glass-forming ability. In recent years, people have developed a series of titanium-based amorphous composite material systems that do not contain Be, such ...

Claims

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Application Information

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IPC IPC(8): C22C45/00C22C1/02
Inventor 李金山李力源贾晨露向林王军寇宏超
Owner NORTHWESTERN POLYTECHNICAL UNIV
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