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Method for manufacturing multi-layer amorphous alloy and crystal metal composite structure through diffusion welding

An amorphous alloy and diffusion welding technology, which is applied in welding equipment, non-electric welding equipment, metal processing equipment, etc., can solve the problems of limited application value of materials, poor shear resistance, and high brittleness of amorphous alloy materials, and achieve Ease of popularization and use, enhanced toughness, and improved shear resistance

Inactive Publication Date: 2013-01-23
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the defects of the prior art, the object of the present invention is to provide a method for preparing a composite structure of multi-layer amorphous alloy and crystalline metal by diffusion welding, aiming at solving the problems of high brittleness and shear resistance of the amorphous alloy material existing in the existing method. The problem of poor cutting ability and limited application value of materials

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  • Method for manufacturing multi-layer amorphous alloy and crystal metal composite structure through diffusion welding
  • Method for manufacturing multi-layer amorphous alloy and crystal metal composite structure through diffusion welding

Examples

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Effect test

Embodiment 1

[0053] First, Zr with a thickness of 0.2mm 41 Ti 14 Cu 12.5 Ni 10 be 22.5Flakes and zirconium flakes are cut into specified sizes, and the end faces of workpieces are polished with 800#, 1000#, and 1200# sandpaper in sequence. After processing, the parallelism is better than 0.02mm, polished to a roughness of better than 1.6um, and the oxide layer is removed. Put the workpiece in acetone and ultrasonically clean it for 15 minutes. After taking out the workpiece, put it into absolute ethanol for the second ultrasonic cleaning, and then put the cleaned workpiece into clean absolute ethanol for storage. On the WC cemented carbide lower indenter, place the solder stop layer in sequence from bottom to top, and place Zr crosswise. 41 Ti 14 Cu 12.5 Ni 10 be 22.5 Flakes, zirconium flakes, solder stop layer, and finally place the WC hard alloy upper indenter, put on the mold combination jacket and the mold jacket to form a fixed workpiece. Place the fixed workpiece in a vacuum...

Embodiment 2

[0055] First, Zr with a thickness of 0.2mm 41 Ti 14 Cu 12.5 Ni 10 be 22.5 Flakes and zirconium flakes are cut into specified sizes, and the end faces of workpieces are polished with 800#, 1000#, and 1200# sandpaper in sequence. After processing, the parallelism is better than 0.02mm, polished to a roughness of better than 1.6um, and the oxide layer is removed. Put the workpiece in acetone and ultrasonically clean it for 15 minutes. After taking out the workpiece, put it into absolute ethanol for the second ultrasonic cleaning, and then put the cleaned workpiece into clean absolute ethanol for storage. On the WC cemented carbide lower indenter, place the solder stop layer in sequence from bottom to top, and place Zr crosswise. 41 Ti 14 Cu 12.5 Ni 10 be 22.5 Flakes, zirconium flakes, solder stop layer, and finally place the WC hard alloy upper indenter, put on the mold combination jacket and the mold jacket to form a fixed workpiece. Place the fixed workpiece in a vacuu...

Embodiment 3

[0057] First, Zr with a thickness of 0.2mm 55 Cu 30 Al 10 Ni 5 Flakes and zirconium flakes are cut into specified sizes, and the end faces of workpieces are polished with 800#, 1000#, and 1200# sandpaper in sequence. After processing, the parallelism is better than 0.02mm, polished to a roughness of better than 1.6um, and the oxide layer is removed. Put the workpiece in acetone and ultrasonically clean it for 15 minutes. After taking out the workpiece, put it into absolute ethanol for the second ultrasonic cleaning, and then put the cleaned workpiece into clean absolute ethanol for storage. On the WC cemented carbide lower indenter, place the solder stop layer in sequence from bottom to top, and place Zr crosswise. 55 Cu 30 Al 10 Ni 5 Flakes, zirconium flakes, solder stop layer, and finally place the WC hard alloy upper indenter, put on the mold combination jacket and the mold jacket to form a fixed workpiece. Place the fixed workpiece in a vacuum diffusion welding furn...

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Abstract

The invention discloses a method for manufacturing a multi-layer amorphous alloy and crystal metal composite structure through diffusion welding. The method comprises the following steps of: cutting, grinding and cleaning an amorphous alloy sheet and a crystal metal sheet, assembling and fixing the amorphous alloy sheet and the crystal metal sheet so as to form a fixed workpiece, and welding the fixed workpiece in a vacuum diffusion furnace. According to the composite structure, extension of a shear band of an amorphous alloy material in the shearing process can be blocked, so that the problem that the pure amorphous alloy material has high brittleness is solved, and the shear resistance is improved. In addition, the welded amorphous alloy material can continuously keep the amorphous characteristics, compared with that of the pure amorphous alloy material, the shear resistance of the composite structure material is greatly improved, the toughness is improved, and the welded sheet is high in surface quality and reliable in connection.

Description

technical field [0001] The invention belongs to the field of diffusion welding, and more specifically relates to a method for preparing a composite structure of multilayer amorphous alloy and crystalline metal by diffusion welding. Background technique [0002] Amorphous alloys are a major discovery in the field of materials in the 20th century. The atomic arrangement inside the material is a long-range disordered short-range order structure, without defects such as dislocations and grain boundaries. This unique structure makes amorphous alloy materials have many excellent properties, such as high strength, hardness, wear resistance, corrosion resistance, excellent soft magnetic properties, etc., in military, micro / nano manufacturing, sports equipment, optical communications, Optical integration, lasers, new solar cells, high-efficiency magnetic and power transmission materials have broad application prospects. Amorphous alloys are promising new structural materials and fun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/02B23K20/14B23K20/26
Inventor 廖广兰史铁林陈彪李默喻强朱志靖杨璠张钊博
Owner HUAZHONG UNIV OF SCI & TECH
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