Magnesium-based composite material and preparation method thereof

A composite material and magnesium alloy technology, which is applied in the preparation and application of non-ferrous metal materials, can solve problems such as poor mechanical properties and decreased mechanical properties, and achieve the effects of good wear resistance, high hardness and uniform distribution.

Inactive Publication Date: 2021-06-11
郑承盛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its mechanical properties at room temperature and high temperature are poor, especially the decline of mechanical properties at high temperature is a fatal flaw.

Method used

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  • Magnesium-based composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A preparation method of magnesium-based composite material:

[0017] (1) According to the molar ratio of 9:1, Al 2 o 3 and B 2 o 3 Mixed and ball milled in a ball mill for 8 hours, the ball mill speed was 300r / m, and the ball-to-material ratio (mass ratio) was 10:1 to obtain Al 18 B 4 o 33 Whisker preforms are available for use;

[0018] (2) Place the ZK60 magnesium alloy in a crucible furnace with gas shielding, heat up to 1100°C to melt and keep it warm, and the Al 18 B 4 o 33 The whisker preform is pressed into the ZK60 magnesium alloy melt through the graphite bell jar, Al 18 B 4 o 33 The mass ratio of the prefabricated body to the ZK60 magnesium alloy melt is 3:100, continue to stir and keep warm for 30 minutes, then cool the mixed melt to 720°C, and pour into shape after refining, degassing and slag removal;

[0019] (3) The magnesium-based composite material obtained in step (2) is subjected to T6 process treatment: solid solution at 530° C. for 6 hou...

Embodiment 2

[0021] A preparation method of magnesium-based composite material:

[0022] (1) According to the molar ratio of 7:3, Al 2 o 3 and B 2 o 3 Mix and mill in a ball mill for 9 hours, the ball mill speed is 300r / m, and the ball-to-material ratio (mass ratio) is 10:1 to obtain Al 18 B 4 o 33 Whisker preforms are available for use;

[0023] (2) Place the ZK60 magnesium alloy in a crucible furnace with gas shielding, heat up to 1200°C to melt and keep it warm, and the Al 18 B 4 o 33 The whisker preform is pressed into the ZK60 magnesium alloy melt through the graphite bell jar, Al 18 B 4 o 33 The mass ratio of the prefabricated body to the ZK60 magnesium alloy melt is 2:100, continue to stir and keep warm for 30 minutes, then cool the mixed melt to 740°C, and pour into shape after refining, degassing and slag removal;

[0024] (3) The magnesium-based composite material obtained in step (2) is subjected to T6 process treatment: solid solution at 530° C. for 6 hours, and agi...

Embodiment 3

[0026] A preparation method of magnesium-based composite material:

[0027] (1) According to the molar ratio of 9:3, Al 2 o 3 and B 2 o 3 Mixed and ball milled in a ball mill for 7h, the ball mill speed was 300r / m, and the ball-to-material ratio (mass ratio) was 10:1 to obtain Al 18 B 4 o 33 Whisker preforms are available for use;

[0028] (2) Place the ZK60 magnesium alloy in a crucible furnace with gas shielding, heat up to 1200°C to melt and keep it warm, and the Al 18 B 4 o 33 The whisker preform is pressed into the ZK60 magnesium alloy melt through the graphite bell jar, Al 18 B 4 o 33 The mass ratio of the prefabricated body to the ZK60 magnesium alloy melt is 5:100, continue to stir and keep warm for 30 minutes, then cool the mixed melt to 700°C, and pour into shape after refining, degassing and slag removal;

[0029] (3) The magnesium-based composite material obtained in step (2) is subjected to T6 process treatment: solid solution at 530° C. for 6 hours, a...

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Abstract

The invention provides a magnesium-based composite material and a preparation method thereof. An Al18B4O33 whisker preform is mixed into a ZK60 magnesium alloy matrix, reaction conditions are controlled to enable the Al18B4O33 whisker preform to grow in situ in the ZK60 magnesium alloy matrix to form an Al18B4O33 whisker, the Al18B4O33 whisker is uniformly distributed in the ZK60 magnesium alloy, the defect of poor mechanical property of the magnesium alloy is overcome, and the obtained magnesium-based composite material is high in hardness and good in wear resistance.

Description

technical field [0001] The invention belongs to the technical field of preparation and application of nonferrous metal materials, and in particular relates to a magnesium-based composite material and a preparation method thereof. Background technique [0002] Thanks to the rapid development of society and the significant improvement of China's economic status, China's auto industry and 3C industries are ushering in transformation and upgrading. Among them, in response to the national call in the future, the automobile industry has put forward requirements for lightweight and environmental protection, especially in the new energy automobile industry. Magnesium alloys have received widespread attention as a lightweight structural material. Magnesium alloys have low density, high Large volume, good heat dissipation, good shock absorption, greater impact load capacity than aluminum alloy, good corrosion resistance of organic matter and alkali. However, its mechanical properties...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C47/06C22C47/08C22C49/04C22C49/14C22C101/02
CPCC22C47/06C22C47/08C22C49/04C22C49/14
Inventor 郑承盛
Owner 郑承盛
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