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Processing and forming method for workpieces made of blocky metal glass or composite material of blocky metal glass

A technology of bulk metal and composite materials, which is applied in the field of manufacturing bulk metallic glass or its composite material workpieces, can solve the problems of unsuitability for mass industrial production, product size and shape restrictions, complex processing equipment, etc., to eliminate defects, The effect of low production cost and low price

Inactive Publication Date: 2011-04-27
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a processing and molding method for bulk metallic glass or its composite material workpiece, which solves the problems of single form, product size and shape restricted by the block during the processing and molding of bulk metallic glass or its composite material. The critical size of metallic glass is limited, the processing equipment is complicated, it is not suitable for mass industrial production or the production cost is too high, etc.

Method used

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  • Processing and forming method for workpieces made of blocky metal glass or composite material of blocky metal glass
  • Processing and forming method for workpieces made of blocky metal glass or composite material of blocky metal glass

Examples

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Embodiment 1

[0023] Such as figure 1 Said, this example uses Zr 55 Cu 30 Al 10 Ni 5 (Atomic percentage) The processing and molding method of the bulk metallic glass workpiece is an example, and the specific steps are as follows:

[0024] (1) Blank selection process:

[0025] Zr obtained by suction casting 55 Cu 30 Al 10 Ni 5 Machining of bulk metallic glass to slabs of the desired size;

[0026] (2) Molding process: According to the requirements of the workpiece, the shaped mold cavity is made, and the bulk metallic glass blank is heated to 430°C in the supercooled liquid region at a heating rate of 20K / min. The strain rate of 2s-1 is used for press forming, and the pressure is greater than 50MPa to form the blank;

[0027] (3) Heat treatment process: pressurize the molded bulk metallic glass workpiece gradually to a stable pressure of 100-400MPa, and then heat it up to a selected temperature of 430°C in the supercooled liquid state of the metallic glass material. Cool down afte...

Embodiment 2

[0030] In this example, Zr 55.9 Cu 18.6 Ta 8 Al 7.5 Ni 10 (Atomic percentage) The processing and molding method of the bulk metallic glass composite material workpiece is taken as an example, and the specific steps are as follows:

[0031] (1) Blank selection process:

[0032] Zr obtained by suction casting 55.9 Cu 18.6 Ta 8 Al 7.5 Ni 10 Machining of bulk metallic glass composites into slabs of required size;

[0033] (2) Molding process: According to the requirements of the workpiece, the shaped mold cavity is made, and the bulk metallic glass blank is heated to 440°C in the supercooled liquid region at a heating rate of 20K / min. -2 the s -1 The strain rate is used for press forming, and the pressure is greater than 50MPa to form the blank;

[0034](3) Heat treatment process: pressurize the molded bulk metallic glass workpiece gradually to a stable pressure of 100-400MPa, and then heat it up to a selected temperature of 440°C in the supercooled liquid range of the...

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Abstract

The invention discloses a processing and forming method for workpieces made of blocky metal glass or a composite material of the blocky metal glass, which is used for carrying out processing and forming on the workpieces made of the blocky metal glass or the composite material of the blocky metal glass. The method comprises the following specific steps: procedure of selecting blanks, procedure of die pressing, procedure of heat treatment, and procedure of modification. In the method, the preparation technique is simple, the operation process is short, the workpiece products, which are made of the blocky metal glass or the composite material of the blocky metal glass, can be produced in batches and are high in shape complexity and excellent in combination property, the production efficiency of products is improved and the cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of manufacturing and molding bulk metallic glass or its composite material workpiece, and in particular relates to a method for preparing a bulk metallic glass workpiece. Background technique [0002] Metallic glass is also known as amorphous alloy, non-crystalline metal, glassy metal, etc., because it has short-range order and long-range disorder in solid state The special structure of the bulk amorphous material has better performance than conventional polycrystalline alloys in many aspects. In terms of application, the high strength, high corrosion resistance and excellent electromagnetic properties of bulk amorphous materials will be used in mechanical, chemical, electronic and biological engineering, etc. There are broad application prospects in the industry. In the late 1980s and early 1990s, the lnoue research group of Tohoku University in Japan first reported that some multi-element alloy systems ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D27/11C22F1/18
Inventor 谌祺柳林李宁
Owner HUAZHONG UNIV OF SCI & TECH
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