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Ultrahigh-comprehensive-performance deformation rare-earth magnesium alloy material and preparation method thereof

A comprehensive performance and alloy material technology, applied in the field of wrought magnesium alloys, can solve the problems of low practical application value, poor high-temperature tensile performance, and creep resistance to be improved, so as to achieve the effect of improving application value and reducing performance limitations

Inactive Publication Date: 2019-12-06
INNER MONGOLIA UNIV FOR THE NATITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The high-temperature tensile properties of deformed magnesium alloys in the prior art are poor, and the creep resistance needs to be improved, which leads to strong performance limitations of magnesium alloy materials and low practical application value. Therefore, it is urgent to develop an ultra-high comprehensive performance deformation Rare earth magnesium alloy material and preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0034] The preparation method of the ultra-high comprehensive performance deformed rare earth magnesium alloy material:

[0035] Step 1: melt casting: under the action of protective gas, La, Ce, N, La, Pr, Ce and M are melted and then cast to obtain rare earth magnesium alloy castings;

[0036] Step 2: homogenization treatment: the rare earth magnesium alloy casting is subjected to homogenization treatment at a temperature of 200-280 degrees Celsius and a holding time of 8-12 hours;

[0037] Step 3: hot extrusion treatment: hot extruding the treated rare earth magnesium alloy in step 2, the temperature of hot extrusion is controlled at 300-350 degrees Celsius, the extrusion ratio is 22-28%, and the extrusion rate is 1.2 -1.8m / min, the hot extrusion adopts a slow wave hot extrusion device.

[0038] In this embodiment, by weight, the ultra-high comprehensive performance deformed rare earth magnesium alloy material includes the following components:

[0039] La: 32 parts; Ce: 4...

Embodiment approach 2

[0041] The preparation method of the ultra-high comprehensive performance deformed rare earth magnesium alloy material:

[0042] Step 1: melt casting: under the action of protective gas, La, Ce, N, La, Pr, Ce and M are melted and then cast to obtain rare earth magnesium alloy castings;

[0043] Step 2: homogenization treatment: the rare earth magnesium alloy casting is subjected to homogenization treatment at a temperature of 200-280 degrees Celsius and a holding time of 8-12 hours;

[0044] Step 3: hot extrusion treatment: hot extruding the treated rare earth magnesium alloy in step 2, the temperature of hot extrusion is controlled at 300-350 degrees Celsius, the extrusion ratio is 22-28%, and the extrusion rate is 1.2 -1.8m / min, the hot extrusion adopts a slow wave hot extrusion device.

[0045] In this embodiment, by weight, the ultra-high comprehensive performance deformed rare earth magnesium alloy material includes the following components:

[0046]La: 42 parts; Ce: 30...

Embodiment approach 3

[0048] The preparation method of the ultra-high comprehensive performance deformed rare earth magnesium alloy material:

[0049] Step 1: melt casting: under the action of protective gas, La, Ce, N, La, Pr, Ce and M are melted and then cast to obtain rare earth magnesium alloy castings;

[0050] Step 2: homogenization treatment: the rare earth magnesium alloy casting is subjected to homogenization treatment at a temperature of 200-280 degrees Celsius and a holding time of 8-12 hours;

[0051] Step 3: hot extrusion treatment: hot extruding the treated rare earth magnesium alloy in step 2, the temperature of hot extrusion is controlled at 300-350 degrees Celsius, the extrusion ratio is 22-28%, and the extrusion rate is 1.2 -1.8m / min, the hot extrusion adopts a slow wave hot extrusion device.

[0052] In this embodiment, by weight, the ultra-high comprehensive performance deformed rare earth magnesium alloy material includes the following components:

[0053] La: 37 parts; Ce: 3...

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Abstract

The invention belongs to the technical field of deformation magnesium alloys, and particularly relates to an ultrahigh-comprehensive-performance deformation rare-earth magnesium alloy material. The ultrahigh comprehensive energy deformation rare earth magnesium alloy material comprises the following components of, by mass part, 32-42 parts of La, 30-40 parts of Ce, 25-35 parts of N, 4-13 parts ofLa, 1-2 parts of Pr, 0.5-1 part of Ce and 20-32 parts of M. The invention further relates to a preparation method of the ultrahigh-comprehensive-performance deformation rare-earth magnesium alloy material. The preparation method of the ultrahigh-comprehensive-performance deformation rare-earth magnesium alloy material comprises the following steps of (1) melting and casting, wherein the La, the Ce, the N, the La, the Pr, the Ce and the M are melted and casted under the action of protective gas to obtain a rare-earth magnesium alloy casting; and (2) homogenization treatment. By means of the ultrahigh-comprehensive-performance deformation rare-earth magnesium alloy material and the preparation method of the ultrahigh-comprehensive-performance deformation rare-earth magnesium alloy material,the performance limitation of a magnesium alloy can be reduced, and the comprehensive effect of application values is improved.

Description

technical field [0001] The invention relates to the technical field of deformed magnesium alloys, in particular to a deformed rare earth magnesium alloy material with ultra-high comprehensive performance and a preparation method thereof. Background technique [0002] As a lightweight green engineering material, magnesium alloy has great application prospects and is called the "green engineering material" in the 21st century. However, most magnesium alloys have poor mechanical properties (especially high-temperature mechanical properties), which limits their applications. Therefore, how to improve its mechanical properties has become an urgent problem to be solved. Adding alloying elements is one of the means commonly used to improve the mechanical properties of magnesium alloys, especially the addition of rare earth elements. Rare earth elements have four functions of "purification", "refining", "strengthening" and "alloying" on magnesium alloys. Mg-RE alloys are favored ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/06C22F1/06
CPCC22C23/06C22F1/06
Inventor 钱芳
Owner INNER MONGOLIA UNIV FOR THE NATITIES
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