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Element N and O co-doped ti-based amorphous composite and preparation method thereof

A technology of amorphous composite materials and co-doping, which is applied in the field of titanium-based amorphous composite materials and their preparation, and can solve problems such as no performance advantages

Inactive Publication Date: 2016-08-24
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, 1100MPa amorphous composites do not have performance advantages over existing high-strength titanium alloys and some amorphous composites

Method used

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  • Element N and O co-doped ti-based amorphous composite and preparation method thereof
  • Element N and O co-doped ti-based amorphous composite and preparation method thereof
  • Element N and O co-doped ti-based amorphous composite and preparation method thereof

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Embodiment 1

[0036] This embodiment is a titanium-based amorphous composite material co-doped with N and O elements.

[0037] The titanium-based amorphous composite material co-doped with N and O elements described in this implementation example is composed of Ti, Zr, Nb, Cu, Be and doped interstitial elements N and O. The titanium-based amorphous composite material Atomic percent is Ti 48 Zr 20 Nb 12 Cu 5 be 15 , the addition amount of N element is 1000ppm, that is, the mass percentage of N element is 0.1%; the addition amount of O element is 1000ppm, that is, the mass percentage of O element is 0.1%. Among them, Ti, Zr, Nb, Cu, and Be are synthesized by smelting bulk Ti, Zr, Nb, Cu with purity ≥99.99% and bulk Be with purity ≥99%. N elements and O elements are added by adding TiN and TiO during the smelting process 2 Doping is introduced in powder form.

[0038] The specific process of preparing the titanium-based amorphous composite material co-doped with N and O elements propose...

Embodiment 2

[0050] This embodiment is a titanium-based amorphous composite material co-doped with N and O elements.

[0051] The titanium-based amorphous composite material co-doped with N and O elements described in this implementation example is composed of Ti, Zr, Nb, Cu, Be and doped interstitial elements N and O. The titanium-based amorphous composite material Atomic percent is Ti 48 Zr 20 Nb 12 Cu 5 be 15 , the addition amount of N element is 3000ppm, that is, the mass percentage of N element is 0.3%; the addition amount of O element is 2000ppm, that is, the mass percentage of O element is 0.2%. Among them, Ti, Zr, Nb, Cu, and Be are synthesized by smelting bulk Ti, Zr, Nb, Cu with purity ≥99.99% and bulk Be with purity ≥99%. N elements and O elements are added by adding TiN and TiO during the smelting process 2 Doping is introduced in powder form.

[0052] The specific process of preparing the titanium-based amorphous composite material co-doped with N and O elements propose...

Embodiment 3

[0063] This embodiment is a titanium-based amorphous composite material co-doped with N and O elements.

[0064] The titanium-based amorphous composite material co-doped with N and O elements described in this implementation example is composed of Ti, Zr, Nb, Cu, Be and doped interstitial elements N and O. The titanium-based amorphous composite material Atomic percent is Ti 48 Zr 20 Nb 12 Cu 5 be 15 , the addition amount of N element is 10000ppm, that is, the mass percentage of N element is 1%; the addition amount of O element is 2400ppm, that is, the mass percentage of O element is 0.24%. Among them, Ti, Zr, Nb, Cu, and Be are synthesized by smelting bulk Ti, Zr, Nb, Cu with purity ≥99.99% and bulk Be with purity ≥99%. N elements and O elements are added by adding TiN and TiO during the smelting process 2 Doping is introduced in powder form.

[0065] The specific process of preparing the titanium-based amorphous composite material co-doped with N and O elements propose...

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Abstract

The invention relates to an element N and O co-doped ti-based amorphous composite and a preparation method thereof. The ti-based amorphous composite is formed by Ti, Zr, Nb, Cu, Be and doped interstitial elements N and O. The mass of the element N and the mass of the element O are determined according to the total mass of a quasi-molten alloy ingot. The element N and the element O are doped and introduced in the manner of adding TiN and TiO2 powder in the melting process. The adding range of the element N and the element O is controlled, and therefore the dendritic crystal volume fraction of an original Ti48Zr20Nb12Cu5Be15 amorphous composite is not changed, the solution strengthening effect of the element N and the element O in dendritic crystals is utilized, and the obtained element N and O co-doped ti-based amorphous composite has higher yield strength and meanwhile has strong breaking plasticity. Meanwhile, the adding amounts of the element N and the element O are adjusted and controlled, and therefore the mechanical property of the amorphous composite is adjusted, and the proper strength and plasticity are obtained accordingly.

Description

technical field [0001] The invention relates to the field of titanium alloys or amorphous alloys, in particular to a titanium-based amorphous composite material with ultrahigh strength and plastic matching 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, the intrinsic brittleness of amorphous alloys due to highly localized deformation restricts their application as high-strength and tough structural materials. Therefore, the preparation of Ti-based self-grown amorphous composites through second phase reinforcement can solve the problem of room temperature brittleness, and at the same time have the advantages of light weight and high strength of amorphous alloys. In recent years, people have developed some titanium-based amorphous compos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/10C22C1/00
CPCC22C45/10C22C1/11
Inventor 李金山李力源王军寇宏超
Owner NORTHWESTERN POLYTECHNICAL UNIV
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