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Preparation method of high-entropy alloy film layer on magnesium alloy surface

A technology of high-entropy alloys and magnesium alloys, which is applied in the field of preparation of high-entropy alloy films on the surface of AZ31 magnesium alloys, can solve the problems of insufficient properties of coating materials and complicated processes, and avoid the change of substrate structure and the deterioration of mechanical properties , simple process, dense tissue effect

Inactive Publication Date: 2019-01-15
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method for preparing a high-entropy alloy film layer on the surface of magnesium alloys to solve the technical problems such as complicated process and insufficient properties of coating materials in the current surface treatment technology of magnesium alloys.

Method used

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  • Preparation method of high-entropy alloy film layer on magnesium alloy surface
  • Preparation method of high-entropy alloy film layer on magnesium alloy surface
  • Preparation method of high-entropy alloy film layer on magnesium alloy surface

Examples

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Effect test

Embodiment 1

[0032] Example 1 A method for preparing a high-entropy alloy film on the surface of a magnesium alloy uses the following raw materials: AZ31 magnesium alloy plate, nickel powder, iron powder, copper powder, chromium powder, and cobalt powder;

[0033] Include the following steps:

[0034] (1) Selection of chemical substances and materials

[0035] The quality and purity of the chemical substances used are controlled as follows:

[0036] AZ31 magnesium alloy plate: more than 99.8% solid solid;

[0037] Nickel powder: more than 99.0% solid solid;

[0038] Iron powder: more than 99.0% solid solid;

[0039] Copper powder: more than 99.0% solid solid;

[0040] Chromium powder: more than 99.0% solid solid;

[0041] Cobalt powder: more than 99.0% solid solid;

[0042] (2) AZ31 magnesium alloy plate treatment

[0043] The AZ31 plate was cut into 10mm*10mm*6mm samples, and the AZ31 sample was subjected to solution treatment at 420°C for 15 hours. After the holding time, water qu...

Embodiment 2

[0048] Example 2 A method for preparing a high-entropy alloy film on the surface of a magnesium alloy uses the following raw materials: AZ31 magnesium alloy plate, nickel powder, iron powder, copper powder, chromium powder, and cobalt powder;

[0049] Include the following steps:

[0050] (1) Selection of chemical substances and materials

[0051] The quality and purity of the chemical substances used are controlled as follows:

[0052] AZ31 magnesium alloy plate: more than 99.8% solid solid;

[0053] Nickel powder: more than 99.0% solid solid;

[0054] Iron powder: more than 99.0% solid solid;

[0055] Copper powder: more than 99.0% solid solid;

[0056] Chromium powder: more than 99.0% solid solid;

[0057] Cobalt powder: more than 99.0% solid solid;

[0058] (2) AZ31 magnesium alloy plate treatment

[0059] The AZ31 plate was cut into 10mm*10mm*6mm samples, and the AZ31 sample was subjected to solution treatment at 420°C for 15 hours. After the holding time, water qu...

Embodiment 3

[0064] Example 3 A method for preparing a high-entropy alloy film on the surface of a magnesium alloy uses the following raw materials: AZ31 magnesium alloy plate, nickel powder, iron powder, copper powder, chromium powder, and cobalt powder;

[0065] Include the following steps:

[0066] (1) Selection of chemical substances and materials

[0067] The quality and purity of the chemical substances used are controlled as follows:

[0068] AZ31 magnesium alloy plate: more than 99.8% solid solid;

[0069] Nickel powder: more than 99.0% solid solid;

[0070] Iron powder: more than 99.0% solid solid;

[0071] Copper powder: more than 99.0% solid solid;

[0072] Chromium powder: more than 99.0% solid solid;

[0073] Cobalt powder: more than 99.0% solid solid;

[0074] (2) AZ31 magnesium alloy plate treatment

[0075] The AZ31 plate was cut into 10mm*10mm*6mm samples, and the AZ31 sample was subjected to solution treatment at 420°C for 15 hours. After the holding time, water qu...

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Abstract

The invention relates to a preparation method of a high-entropy alloy film layer on the magnesium alloy surface. Preparative high-entropy alloy powder and a steel ball in advance are placed into a sample tank according to conditions of soft magnesium alloy character and poor corrosion resistance, a method of surface high-energy shot blasting is adopted, the high-entropy alloy powder is tightly combined on the AZ31 magnesium alloy surface through large mechanical deformation, so that the high-entropy alloy layer with a protective effect is formed on the AZ31 magnesium alloy surface, and the method greatly improve the mechanical performance and the corrosion resistance performance of the magnesium alloy surface. The corrosion rate of a surface alloy layer is about 1.5% of a base material, and the abrasion performance of the surface alloy layer can be improved more than doubled. The preparation method of the high-entropy alloy film layer on the magnesium alloy surface has a simple process, accurate and detailed quantity values, good coating binding strength, close texture, and is a very ideal method for film layer enhancing of the magnesium alloy.

Description

technical field [0001] The invention relates to a method for preparing a high-entropy alloy film layer on the surface of an AZ31 magnesium alloy, and belongs to the technical field of non-ferrous metals improving surface mechanical properties, corrosion resistance properties and process preparation. Background technique [0002] Magnesium and magnesium alloys are non-ferrous metal alloys with low density, high specific strength and specific stiffness, good electromagnetic shielding, and easy processing. They are widely used in the automotive industry, electronic products, and aerospace fields; but their chemical activity High, poor corrosion resistance, easily oxidized in humid air to form a loose porous oxide film, these drawbacks have limited the application of magnesium alloys in more fields, in order to make magnesium alloys more widely used, the surface of magnesium alloys Processing is very necessary. [0003] At present, there are many forms of surface treatment meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/04C22C30/02
CPCC22C30/02C23C24/04
Inventor 刘宝胜卫英慧侯利锋杜华云房大庆张跃忠任晓霞罗小萍
Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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