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Method for manufacturing amorphous alloy thin strip through Mg-Zn-Gd quasi-crystal alloy

An amorphous alloy, mg-gd technology, applied in the field of high-performance magnesium alloys, can solve the problems of corrosion resistance that cannot meet the requirements, low interface energy, etc., and achieve the effect of low friction coefficient, low interface energy, and uniform structure

Active Publication Date: 2016-03-09
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the current research on quasicrystalline magnesium alloys, it is found that quasicrystalline magnesium alloys have the characteristics of low interface energy, high strength and high hardness, but their corrosion resistance still cannot meet the needs.

Method used

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  • Method for manufacturing amorphous alloy thin strip through Mg-Zn-Gd quasi-crystal alloy
  • Method for manufacturing amorphous alloy thin strip through Mg-Zn-Gd quasi-crystal alloy
  • Method for manufacturing amorphous alloy thin strip through Mg-Zn-Gd quasi-crystal alloy

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Experimental program
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Effect test

Embodiment 1

[0031] A method for preparing an amorphous alloy thin strip from a Mg-Zn-Gd quasicrystal alloy, characterized in that the following mass percentages are: Zn48.29%, Gd11.61%, and the balance is Mg.

[0032] 1) Preparation of Mg-Zn-Gd quasicrystalline master alloy:

[0033] Prepare magnesium ingots, zinc ingots and Mg-Gd master alloys according to the ratio as raw materials, raise the furnace temperature to 710°C, put the magnesium ingots into the graphite crucible, and then put the clay graphite crucible into the SF 6 -CO 2 In the resistance furnace of mixed gas, add the Mg-Gd master alloy after the magnesium ingot is melted, and finally add the zinc ingot after the Mg-Gd master alloy is melted. Stand in the middle for 2 minutes, pour into the metal mold, and obtain the Mg-Zn-Gd quasicrystalline master alloy with uniform composition;

[0034] 2) Melting Mg-Zn-Gd master alloy and rapid solidification to form amorphous alloy thin strip sample

[0035] Cut the Mg-Zn-Gd quasi-cr...

Embodiment 2

[0038] 1, a kind of technology and its characteristic of preparing amorphous alloy thin strip by Mg-Zn-Gd quasicrystal alloy, it is characterized in that, have following mass percent content to be: Zn46.73%, Gd14.99%, surplus is Mg.

[0039] Take the following steps to make:

[0040] 1) Preparation of Mg-Zn-Gd quasicrystalline master alloy:

[0041] Prepare magnesium ingots, zinc ingots and Mg-Gd master alloys according to the ratio as raw materials, raise the furnace temperature to 720°C, put the magnesium ingots into the graphite crucible, and then put the clay graphite crucible into the SF 6 -CO 2 In the resistance furnace of mixed gas, add Mg-Gd master alloy after the magnesium ingot is melted, and finally add zinc ingot after the Mg-Gd master alloy is melted, keep warm for 30 minutes after the zinc is melted, then slowly shake the graphite crucible for 2 minutes, put it into the furnace Stand still for 3 minutes, pour into metal molds to obtain Mg-Zn-Gd quasicrystallin...

Embodiment 3

[0046] A technology and its characteristics for preparing amorphous alloy thin strips from Mg-Zn-Gd quasicrystal alloys, characterized in that the following mass percentages are: Zn45.32%, Gd18.16%, and the balance is Mg.

[0047] Take the following steps to make:

[0048] 1) Preparation of Mg-Zn-Gd quasicrystalline master alloy:

[0049] Prepare magnesium ingots, zinc ingots and Mg-Gd master alloys according to the ratio as raw materials, raise the furnace temperature to 715°C, put the magnesium ingots into the graphite crucible, and then put the clay graphite crucible into the SF 6 -CO 2 In the mixed gas resistance furnace, add Mg-Gd master alloy after the magnesium ingot is melted, and finally add zinc ingot after the Mg-Gd master alloy is melted, keep warm for 20 minutes after the zinc is melted, then slowly shake the graphite crucible for 1.5 minutes, put it into the Stand in the middle for 2.5min, pour into the metal mold, obtain the Mg-Zn-Gd quasicrystal master alloy ...

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Abstract

The invention relates to a method for preparing an amorphous alloy thin strip through Mg-Zn-Gd quasi-crystal alloy. The method is characterized in that on the basis of successfully preparing the Mg-Zn-Gd quasi-crystal alloy, components for forming quasi-crystals are selected for successfully preparing the amorphous alloy and include, by mass, 45.32-48.29% of Zn, 11.61-18.16% of Gd and the balance Mg. The method includes the steps that the Mg-Zn-Gd quasi-crystal alloy which is high in quasi-crystal content and even in texture is obtained; technology parameters of the quasi-crystal intermediate alloy are adjusted through a fast solidification method; and the amorphous alloy thin strip prepared through the Mg-Zn-Gd quasi-crystal alloy is obtained, wherein the maximum length of amorphous alloy thin strip samples obtained in experiments is 250 cm. According to the preparing method for the amorphous alloy thin strip through Mg-Zn-Gd quasi-crystal alloy, the obtained amorphous alloy thin strip has the characteristic of a melt of the quasi-crystal alloy and also has the typical steamed bread peak of amorphous alloy and the exothermic peak in the heating process of differential thermal analysis. The application range of magnesium alloy in practical production and life can be further improved through the amorphous alloy thin strip prepared through the method.

Description

[0001] The invention belongs to the technical field of high-performance magnesium alloys, and in particular relates to a method for preparing amorphous alloy strips from Mg-Zn-Gd quasi-crystal alloys. Background technique [0002] In the current research on quasicrystalline magnesium alloys, it is found that quasicrystalline magnesium alloys have the characteristics of low interface energy, high strength and high hardness, but their corrosion resistance still cannot meet the demand. Amorphous alloy has no grain boundary, dislocation and other factors that are easy to cause corrosion, and its single and uniform structure can produce a passivation film in the early stage of corrosion to prevent further aggravation of corrosion. [0003] Currently, the Chinese patent application number CN201310356833.7 reports an amorphous composite material and its preparation method and application. Although the amorphous composite material is prepared, it is a composite material with the nic...

Claims

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Application Information

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IPC IPC(8): B22D11/06C22C1/03C22C45/00
Inventor 张金洋滕新营葛行敬徐淑敏
Owner UNIV OF JINAN
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