ZK60 magnesium alloy preparation method based on SPS technology

A magnesium alloy technology, applied in the field of ZK60 magnesium alloy preparation based on SPS technology, can solve problems such as poor density and uneven structure

Inactive Publication Date: 2021-07-23
QINGHAI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems of uneven structure and poor density existing in the existing ZK60 magnesiu

Method used

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  • ZK60 magnesium alloy preparation method based on SPS technology
  • ZK60 magnesium alloy preparation method based on SPS technology
  • ZK60 magnesium alloy preparation method based on SPS technology

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of ZK60 magnesium alloy preparation method based on SPS technology, comprises the following steps:

[0033] S1, the ZK60 magnesium alloy powder of Mg-Zn-Zr ternary system alloy is poured in the stainless steel ball mill tank, and to wherein adding dehydrated alcohol (analytical pure) carries out ball milling, the mass ratio of ZK60 magnesium alloy powder and dehydrated alcohol= 2.63:1; ball milling parameters are: ball to material ratio is 3:1, ball milling speed is 200rpm, ball milling time is 2h;

[0034] S2, the powder after ball milling is vacuum-dried, and the vacuum-drying condition is: 10 -2 Below Pa;

[0035] S3. Put the vacuum-dried powder in a grinding tool with a diameter of 30mm, and sinter it in the SPS discharge plasma sintering equipment of LABOX-325R. The pressure is 3500kg, and the temperature is kept for 10 minutes under the protection of Ar gas to obtain the sintered ZK60 magnesium alloy material.

[0036] Wherein the contents of Mg, Zn, and...

Embodiment 2

[0038] S1, the ZK60 magnesium alloy powder of Mg-Zn-Zr ternary system alloy is poured in the stainless steel ball mill tank, and to wherein adding dehydrated alcohol (analytical pure) carries out ball milling, the mass ratio of ZK60 magnesium alloy powder and dehydrated alcohol= 2.63:1; ball milling parameters are: ball to material ratio is 3:1, ball milling speed is 200rpm, ball milling time is 2h;

[0039] S2, the powder after ball milling is vacuum-dried, and the vacuum-drying condition is: 10 -2 Below Pa;

[0040] S3. Put the vacuum-dried powder in a grinding tool with a diameter of 30mm, and sinter it in the SPS discharge plasma sintering equipment of LABOX-325R. The pressure is 3500kg, and the temperature is kept for 10 minutes under the protection of Ar gas to obtain the sintered ZK60 magnesium alloy material.

[0041] Wherein the contents of Mg, Zn, and Zr in the ZK60 magnesium alloy in step S1 are 93.5%, 6%, and 0.5%, respectively.

Embodiment 3

[0043] S1, the ZK60 magnesium alloy powder of Mg-Zn-Zr ternary system alloy is poured in the stainless steel ball mill tank, and to wherein adding dehydrated alcohol (analytical pure) carries out ball milling, the mass ratio of ZK60 magnesium alloy powder and dehydrated alcohol= 2.63:1; ball milling parameters are: ball to material ratio is 3:1, ball milling speed is 200rpm, ball milling time is 2h;

[0044] S2, the powder after ball milling is vacuum-dried, and the vacuum-drying condition is: 10 -2 Below Pa;

[0045] S3. Put the vacuum-dried powder in a grinding tool with a diameter of 30mm, and sinter it in the SPS discharge plasma sintering equipment of LABOX-325R, and raise the temperature to 450°C at a heating rate of 100°C / min. The pressure is 3500kg, and the temperature is kept for 10 minutes under the protection of Ar gas to obtain the sintered ZK60 magnesium alloy material.

[0046] Wherein the contents of Mg, Zn, and Zr in the ZK60 magnesium alloy in step S1 are 93...

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Abstract

In order to solve the technical problems that an existing ZK60 magnesium alloy preparation method is uneven in structure and poor in compactness, the invention provides a ZK60 magnesium alloy preparation method based on the SPS technology. The method comprises the following steps that S1, ZK60 magnesium alloy powder is poured into a stainless steel ball milling tank, and absolute ethyl alcohol is added for ball milling; S2, vacuum drying is conducted on powder obtained after ball grinding; and S3, the powder obtained after vacuum drying is placed in a grinding tool and sintered in discharge plasma sintering equipment, and a sintered ZK60 magnesium alloy material is obtained. Compared with a traditional method for conducting sintering by using a vacuum hot-pressing sintering furnace, the method has the advantages that the sintering period of raw materials is greatly shortened and the environmental protection is improved while better strength and plasticity are ensured. The preparation method is simple, good in safety and high in economic value, and has a great popularization space.

Description

technical field [0001] The invention relates to the technical field of magnesium alloy preparation, in particular to a preparation method of ZK60 magnesium alloy based on SPS technology. Background technique [0002] In recent decades, powder metallurgy technology has developed rapidly and has been widely used in various fields. Compared with other preparation processes such as stirring casting and squeeze casting, materials prepared by powder metallurgy have the following characteristics: high utilization rate of raw materials, low manufacturing cost, good comprehensive performance of materials, and relatively high dimensional stability of materials. it is good. In addition, powder metallurgy can also be used to produce materials with complex shapes that cannot be produced by conventional processes. The sintering process of the traditional powder metallurgy method requires a high temperature for preparing materials, a long sintering cycle, and relatively high energy loss....

Claims

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Application Information

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IPC IPC(8): C22C1/04C22C23/04B22F3/105
CPCC22C1/0408C22C23/04B22F3/105B22F2003/1051
Inventor 马丽莉马洛生马斌孙宏亮武志超
Owner QINGHAI UNIVERSITY
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