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Quasicrystal phase reinforced LPSO structured Mg-Zn-Y magnesium alloy and preparation method thereof

A technology of magnesium alloy and quasicrystal phase, which is applied in the field of LPSO structure Mg-Zn-Y magnesium alloy enhanced by quasicrystal phase and its preparation, can solve the problem that the strength is difficult to meet the mechanical performance requirements of bearing parts, and achieve high temperature creep resistance. High and good creep resistance, the effect of improving strength and plasticity

Active Publication Date: 2015-11-18
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as a lightweight structural material, its strength is still difficult to meet the mechanical performance requirements of bearing parts

Method used

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  • Quasicrystal phase reinforced LPSO structured Mg-Zn-Y magnesium alloy and preparation method thereof
  • Quasicrystal phase reinforced LPSO structured Mg-Zn-Y magnesium alloy and preparation method thereof
  • Quasicrystal phase reinforced LPSO structured Mg-Zn-Y magnesium alloy and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A Mg-Zn-Y magnesium alloy with a quasicrystalline phase reinforced LPSO structure is composed of the following components in mass percentage: Zn5.51%, Y13.35%, and the balance is Mg.

[0037] Take the following steps to make:

[0038] 1) Preparation of Mg-Y master alloy by conventional casting method:

[0039] Using the weight ratio of 29.50%Y and 70.50%Mg as the raw material, put it into the crucible to heat and melt it and raise the temperature to 830°C. After stirring evenly, pour the metal mold to obtain the Mg-Y master alloy. SF is introduced during the melting process. 6 -CO 2 Mixed gas protection to get Mg-Y master alloy;

[0040] 2) Preparation of Mg-Zn-Y quasicrystal master alloy:

[0041] Weigh pure zinc ingots, Mg-Y master alloy and pure magnesium ingot raw materials prepared in step 1) according to the ratio, and the weight percentage composition is: 55.00% pure zinc ingots, 20.34% Mg-Y master alloys, and the balance is pure magnesium Spin, in SF 6 -CO ...

Embodiment 2

[0048] A Mg-Zn-Y magnesium alloy with a quasicrystalline phase reinforced LPSO structure is composed of the following components in mass percentage: Zn7.02%, Y13.00%, and the balance is Mg.

[0049] Take the following steps to make:

[0050] 1) Preparation of Mg-Y master alloy by conventional casting method:

[0051] Use the weight ratio of 30.00%Y and 70.00%Mg as the raw material, put it into the crucible, heat and melt it and raise the temperature to 805°C, stir it evenly and pour the metal mold to make the Mg-Y master alloy, and add SF during the melting process 6 -CO 2 Mixed gas protection to get Mg-Y master alloy;

[0052] 2) Preparation of Mg-Zn-Y quasicrystal master alloy:

[0053] Weigh pure zinc ingots, Mg-Y master alloy and pure magnesium ingot raw materials prepared in step 1) according to the ratio, and the weight percentage composition is: 55.50% pure zinc ingot, 18.33% Mg-Y master alloy, and the balance is pure magnesium Spin, in SF 6 -CO 2 Under the protec...

Embodiment 3

[0060] A Mg-Zn-Y magnesium alloy with a quasicrystalline phase reinforced LPSO structure is composed of the following components in mass percentage: Zn8.96%, Y12.11%, and the balance is Mg.

[0061] Take the following steps to make:

[0062] 1) Preparation of Mg-Y master alloy by conventional casting method:

[0063] Using the weight ratio of 29.80%Y and 70.20%Mg as the raw material, put it into the crucible, heat and melt it and raise the temperature to 810°C, stir it evenly and pour the metal mold to make the Mg-Y master alloy, and add SF during the melting process 6 -CO 2 Mixed gas protection to get Mg-Y master alloy;

[0064] 2) Preparation of Mg-Zn-Y quasicrystal master alloy:

[0065] Weigh pure zinc ingots, Mg-Y master alloy and pure magnesium ingot raw materials prepared in step 1) according to the proportion, and the weight percentage composition is: 55.60% pure zinc ingot, 17.79% Mg-Y master alloy, and the balance is pure magnesium Spin, in SF 6 -CO 2 Under the...

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Abstract

The invention relates to a quasicrystal phase reinforced LPSO structured Mg-Zn-Y magnesium alloy and a preparation method thereof. The magnesium alloy is composed of the following components in percentage by mass: 5.51-13.58% of Zn, 11.30-13.35% of Y and the balance of Mg. On the basis of an LPSO structure Mg-Zn-Y magnesium alloy, the quasicrystal phase reinforced LPSO structured Mg-Zn-Y magnesium alloy is prepared by adding 2-16% by mass of Mg-Zn-Y quasicrystal interalloy in a process of smelting the LPSO structure Mg-Zn-Y magnesium alloy through a reasonable process means. The good advantage of high high-temperature creep resistance of the LPSO structure Mg-Zn-Y magnesium alloy is retained, and the strength and plasticity of the alloy are improved, so that the comprehensive performance of the novel alloy is obviously improved. The obtained composite magnesium alloy material has wide application prospect in the fields of rail transits, automobiles, electronics, communication and the like.

Description

technical field [0001] The invention belongs to the technical field of high-performance magnesium alloys, and in particular relates to a Mg-Zn-Y magnesium alloy with a quasi-crystal phase reinforced LPSO structure and a preparation method thereof. Background technique [0002] With the rapid development of the automobile and aviation industries, higher requirements are put forward for energy saving, emission reduction and light weight, which leads to greater development of high-strength and lightweight materials. As the lightest metal structure material in current practical application, magnesium alloy has the advantages of high specific strength and specific modulus, good vibration absorption and noise reduction, good casting performance, and easy recycling. It has broad application prospects. Among them, low-cost cast magnesium alloys with excellent comprehensive properties are mostly used in civil fields such as automobiles and electronics, and the application of mag...

Claims

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Application Information

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IPC IPC(8): C22C23/04C22C23/06C22C1/03
Inventor 滕新营许敏张金洋徐淑敏葛行敬
Owner UNIV OF JINAN
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