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Method of using underwater impact waves to prepare metal material with periodic double-peak distribution structure

A bimodal distribution, metal material technology, used in manufacturing tools, metal processing equipment, welding equipment, etc., can solve problems such as difficulty in obtaining, and achieve the effect of resisting the greenhouse effect and promoting light weight

Inactive Publication Date: 2016-05-25
INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS +1
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  • Abstract
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  • Claims
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Problems solved by technology

Therefore, having high strength, high hardness, high plasticity, and high toughness at the same time is the index pursued by many scientists when studying materials, and it is also difficult to obtain

Method used

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  • Method of using underwater impact waves to prepare metal material with periodic double-peak distribution structure
  • Method of using underwater impact waves to prepare metal material with periodic double-peak distribution structure
  • Method of using underwater impact waves to prepare metal material with periodic double-peak distribution structure

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Embodiment Construction

[0029] The method for preparing a metal material with a periodic bimodal distribution structure according to the underwater shock wave of the present invention will be further described below through specific examples.

[0030] Such as Figure 7 As shown, a method for preparing a metal material with a periodic bimodal distribution structure by an underwater shock wave is characterized in that the steps of the method are:

[0031] A) Prepare four AZ31 magnesium alloy metal substrates 11 with pre-cleaned surfaces, length 200mm, width 150mm, and thickness 0.5mm;

[0032] Preparation pool 4, with a platform 8 at the bottom of pool 4;

[0033] Prepare support 6, waterproof explosive pack 5, detonator 3, double-sided tape cushion 7 with thickness 0.3mm and width 1mm, waterproof tape 10;

[0034] B) The metal substrate 11 is stacked from bottom to top, and the four sides of each metal substrate 11 are supported by the cushion layer 7, so that a hollow layer 9 is formed between the upper and l...

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Abstract

Disclosed is a method of using underwater impact waves to prepare a metal material with a periodic double-peak distribution structure. The method is characterized by including: A), preparing metal substrates (11), a pool (4) with a platform (8) arranged at the bottom, a support (6), a waterproof charge (5), an exploder (3), a cushion layer (7) and a waterproof adhesive tape (10); B), stacking the metal substrates (11), using the cushion layer (7) to support four sides of each metal substrate (11) to form a hollow layer (9) between every two upper-lower metal substrates (11) to obtain a stacked member, using the waterproof adhesive tape (10) to wind and seal the side face of the stacked member to obtain an initial blank, fixing the initial blank on the platform (8), mounting the support (6) on the initial blank, placing the waterproof charge (5) with the exploder (3) on the support (6), and watering the pool (4) until the waterproof charge (5) is completely submerged; C), detonating the waterproof charge (5) to obtain the metal material with the periodic double-peak distribution structure.

Description

Technical field [0001] The invention relates to a method for preparing a metal material with a periodic bimodal structure by generating underwater shock waves by explosion. Specifically, underwater, through the shock wave effect of instantaneous high pressure and high strain rate generated when the explosive explodes, multiple parallel stacked metal substrates are combined together at one time, and under the quenching action of the surrounding water, periodic double Peak distribution structure product method. Background technique [0002] The high strength of materials has always been an important index pursued in materials research. The classic Hall-petch effect points out that the yield strength of a material will gradually increase as the grain size decreases. Therefore, grain refinement can strengthen the material. For example, the strength of nanocrystalline metals can be many times higher than that of coarse-grained materials. However, due to the size of nanocrystalline...

Claims

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Application Information

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IPC IPC(8): B23K20/08C21D8/00C22F1/00
CPCB23K20/08B23K2103/08C21D8/00C22F1/00
Inventor 孙伟陈黎亮董守华南小龙王宇航卢成嘉
Owner INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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