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Microalloyed magnesium alloy sheet with high formability and preparation method thereof

A technology of microalloying and magnesium alloying, applied in the field of microalloying magnesium alloy sheet with high formability and its preparation, can solve the problems of poor room temperature plasticity, achieve high room temperature formability, reduce original cost, and increase work hardening index Effect

Active Publication Date: 2019-05-14
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of poor room temperature plasticity existing in existing magnesium alloy sheets, the present invention provides a microalloyed magnesium alloy sheet with high formability and a preparation method thereof

Method used

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  • Microalloyed magnesium alloy sheet with high formability and preparation method thereof
  • Microalloyed magnesium alloy sheet with high formability and preparation method thereof
  • Microalloyed magnesium alloy sheet with high formability and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0063] A micro-alloyed magnesium alloy thin plate with high formability, its composition and the mass percentage of each component are: 1.0% zinc, 0.6% ytterbium, 0.4% zirconium, and the balance is magnesium and unavoidable impurity elements.

[0064] A method for preparing a micro-alloyed magnesium alloy thin plate with high formability, the steps are as follows:

[0065] Step 1. Melting process

[0066] Weigh the corresponding raw materials according to the alloy composition and the content of each component, melt the prepared industrial pure magnesium, industrial pure zinc, magnesium-ytterbium master alloy, and magnesium-zirconium master alloy in an ordinary resistance furnace, and add industrial The addition temperature of pure magnesium, industrial pure zinc and magnesium-ytterbium master alloy is 730°C, and the addition temperature of magnesium-zirconium master alloy is 760°C. After the alloy elements are completely melted, high-purity argon is continuously introduced in...

Embodiment 2

[0080] A micro-alloyed magnesium alloy thin plate with high formability, its composition and the mass percentage of each component are: 0.5% zinc, 0.3% ytterbium, 0.2% zirconium, and the balance is magnesium and unavoidable impurity elements.

[0081] A method for preparing a micro-alloyed magnesium alloy thin plate with high formability, the steps are as follows:

[0082] Step 1. Melting process

[0083] Weigh the corresponding raw materials according to the alloy composition and the content of each component, melt the prepared industrial pure magnesium, industrial pure zinc, magnesium-ytterbium master alloy, and magnesium-zirconium master alloy in an ordinary resistance furnace, and add industrial The addition temperature of pure magnesium, industrial pure zinc and magnesium-ytterbium master alloy is 730°C, and the addition temperature of magnesium-zirconium master alloy is 760°C. After the alloy elements are completely melted, high-purity argon is continuously introduced in...

Embodiment 3

[0097] A micro-alloyed magnesium alloy thin plate with high formability, its composition and the mass percentage of each component are: 0.5% zinc, 0.5% ytterbium, 0.3% zirconium, and the balance is magnesium and unavoidable impurity elements.

[0098] A method for preparing a micro-alloyed magnesium alloy thin plate with high formability, the steps are as follows:

[0099] Step 1. Melting process

[0100] Weigh the corresponding raw materials according to the alloy composition and the content of each component, melt the prepared industrial pure magnesium, industrial pure zinc, magnesium-ytterbium master alloy, and magnesium-zirconium master alloy in an ordinary resistance furnace, and add industrial The addition temperature of pure magnesium, industrial pure zinc and magnesium-ytterbium master alloy is 730°C, and the addition temperature of magnesium-zirconium master alloy is 760°C. After the alloy elements are completely melted, high-purity argon is continuously introduced in...

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Abstract

The invention discloses a microalloyed magnesium alloy sheet with high formability and a preparation method thereof, and belongs to the nonferrous metal material and machining field, which solves theproblem of poor room temperature plasticity existing in magnesium alloy sheets. The microalloyed magnesium alloy sheet with high formability comprises, by mass percent, 0.5-1.0% of zinc, 0.3-0.6% of ytterbium, 0.2-0.4% of zirconium, and the balance magnesium and inevitable impurity elements. A weak base surface texture is showed through the sheet formed by synchronous cross rolling, the elongations in the rolling direction, 45-degree rolling direction and transverse direction are about 30%, the erishen value is 8.11 mm, and the room temperature formability is good. The key preparative techniques comprise smelting, casting, rolling and annealing, and has the advantages of being efficient, rapid, low in cost, high in operability, good in process stability, capable of realizing batch production easily, energy-saving and environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of non-ferrous metal materials and processing, and in particular relates to a micro-alloyed magnesium alloy sheet with high formability and a preparation method thereof. Background technique [0002] As the lightest structural material at present, magnesium alloy is widely used in industries such as aerospace, weaponry, automobile industry and consumer electronics. However, due to the close-packed hexagonal structure of magnesium alloys, the plasticity at room temperature is poor, which severely limits its application. According to the classic Hall-alignment relationship, it can be known that the smaller the grain size of the alloy, the higher the strength and plasticity. At present, the grains are usually refined by pressing to improve the plasticity of the alloy for further deep processing. As a relatively mature pressure processing technology, rolling is widely used in the preparation of metal material ...

Claims

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Application Information

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IPC IPC(8): C22C23/04C22C23/06C22C1/03C22F1/06
Inventor 孟健张栋栋李柏顺杨强管凯王楠秦鹏飞张德平邱鑫
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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