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Titanium-based amorphous/titanium alloy layered composite material and preparation method thereof

A technology of layered composite materials and amorphous alloys, applied in the direction of metal layered products, chemical instruments and methods, lamination, etc., can solve the problem of difficulty in preparing prefabricated bodies with regular layer and layer arrangement, unfavorable mechanical properties of composite materials, Unable to obtain multi-layer composite materials and other problems, to achieve good chemical compatibility, good physical compatibility, and good interface bonding

Active Publication Date: 2019-11-08
沈阳超能新材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As mentioned above, when the supercooled liquid phase lamination method prepares composite materials, the interface presents mechanical bonding instead of metallurgical bonding, which is not conducive to obtaining high performance; the arc method cannot obtain multilayer composite materials, and the size of the sample is limited
However, when the traditional composite material preparation method, such as vacuum liquid infiltration method, is used to prepare layered composite materials, it is difficult to prepare a prefabricated body with regular layers due to the small thickness and no rigidity of the thin strips, and the layers are easy to interact with each other. Contact, resulting in impregnation, is easy to form closed cavities, which is not conducive to the improvement of the mechanical properties of composite materials

Method used

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  • Titanium-based amorphous/titanium alloy layered composite material and preparation method thereof
  • Titanium-based amorphous/titanium alloy layered composite material and preparation method thereof
  • Titanium-based amorphous/titanium alloy layered composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0045] Prepare 100g of titanium-based master alloy by using arc melting equipment, the composition is: Ti 32.8 Zr 30.2 Ni 5.3 Cu 9 be 22.7 (atomic percent), and then the master alloy was prepared into an amorphous strip of 10 mm×50 μm (width×thickness) in a single-roller stripping device. Cut the amorphous strips to a length of 50 mm, stack them alternately with pure titanium strips (purity greater than 99%), and clamp them in a device to obtain a titanium-based amorphous / pure titanium preform. After vacuum packaging, heating and water quenching, a composite material sample with a size of 50mm×10mm×6.5mm (length×width×thickness) was obtained.

[0046] The process parameters are as follows:

[0047] Vacuum degree: 2×10 -3 Pa;

[0048] Insulation temperature: 865°C;

[0049] Heat preservation time: 180s.

[0050] The microstructure of the composite material is as follows figure 1 As shown, the amorphous phase and Ti are uniformly distributed, and no defects such as hol...

Embodiment 2

[0053] The difference from Example 1 is that the composition of the titanium-based amorphous alloy strip is specifically shown in Table 1, and the rest are the same as in Example 1.

[0054] Table 1 Titanium-based amorphous alloy strip composition

[0055]

[0056]

[0057] The microstructure of the prepared composite material was detected by XRD and SEM. The results showed that the composite material was composed of amorphous phase, α-Ti and β-Ti, and the titanium-based amorphous layer and titanium alloy layer were uniformly arranged, and the interface was free of Formation of defects such as holes.

Embodiment 3

[0059] The difference from Example 1 is that the composition of the titanium alloy strip is specifically shown in Table 2, and the rest are the same as in Example 1.

[0060] Table 2 Titanium alloy strip composition

[0061] serial number Composition (atomic percent) 1 Ti 75 Zr 23 Cu 2

[0062] Characterized by XRD, DSC and SEM detection means, the prepared composite material presents typical interphase distribution characteristics of amorphous layer and titanium alloy layer.

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Abstract

The invention relates to a titanium-based amorphous / titanium alloy layered composite material and a preparation method thereof, belonging to the technical field of metal-based composite materials. Thecomposite material is composed of titanium-based amorphous alloy layers and titanium alloy layers which are alternately arranged to form a layered structure. The layered composite material is prepared through an instant liquid connection method which comprises the following steps: alternately laminating selected titanium-based amorphous ribbons and titanium alloy ribbons so as to prepare a preform, then carrying out melting under heating, and carrying out heat-preserving and water-quenching so as to obtain the titanium-based amorphous alloy / titanium alloy layered composite material. Accordingto the invention, the amorphous phase layers and the titanium alloy layers of the composite material are continuously and uniformly distributed in a dimensional space, and through synergistic deformation and mutual strengthening, strength and plasticity of the material are simultaneously and significantly improved. The composite material provided by the invention has the characteristics of excellent mechanical properties, high specific strength and uniform, controllable microstructure, etc., and has broad application prospects.

Description

technical field [0001] The invention relates to a crystalline / amorphous layered composite material, in particular to a titanium-based amorphous / titanium alloy layered composite material and a preparation method thereof. Background technique [0002] Bulk amorphous alloy is a new type of metastable metal material developed in recent decades. It has unique mechanical, physical and chemical properties, such as high yield strength, high elastic limit, good corrosion resistance and excellent magnetic properties. It has broad application prospects. At present, the developed amorphous alloy systems include La-based, Zr-based, Fe-based, Pd-based, Ti-based, Ni-based and Mg-based alloy systems. Among them, Ti-based amorphous alloys have important application prospects in aerospace, communication electronic instruments and other fields due to their high specific strength and excellent corrosion resistance. [0003] Although amorphous alloys have many excellent properties, their room ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B7/04B32B15/01B32B33/00B32B37/00B32B37/06B32B37/04
CPCB32B7/04B32B15/01B32B33/00B32B37/00B32B37/04B32B37/06B32B2307/54B32B2307/558
Inventor 朱正旺李丹张海峰王爱民李宏付华萌张宏伟李正坤
Owner 沈阳超能新材科技有限公司
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