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Pseudo-crystal reinforced high zinc magnesium alloy and method for manufacturing same

A magnesium alloy and high-zinc technology, applied in the field of high-zinc-magnesium alloy materials and their manufacturing, can solve the problems of low ignition point, difficult forming, and high production cost, and achieve improved toughness and heat resistance, slow crystal growth, and high crystallization. Multiple core effects

Inactive Publication Date: 2007-09-26
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the deficiencies of the existing magnesium alloys, the present invention proposes a high-zinc-magnesium alloy with a simple process, relatively low cost, and can significantly improve the ignition point and toughness of the magnesium reference crystal reinforcement and its manufacturing method to solve the existing problems. Cast magnesium alloys have low ignition point, poor toughness, difficult forming, low mechanical properties and corrosion resistance, and high production costs.

Method used

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  • Pseudo-crystal reinforced high zinc magnesium alloy and method for manufacturing same
  • Pseudo-crystal reinforced high zinc magnesium alloy and method for manufacturing same
  • Pseudo-crystal reinforced high zinc magnesium alloy and method for manufacturing same

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Effect test

Embodiment 1

[0020] The chemical composition of the high-zinc-magnesium alloy reinforced by magnesium benchmark grain (by mass percent Wt%): Al: 2.50, Zn: 6.00, Mn: 1.20, Y0.: 40, Ni: 0.005, Fe: 0.04, Cu: 0.03, The remainder is Mg.

[0021] At first by the required magnesium-based master alloy composition requirement of high-zinc-magnesium alloy design composition, prepare materials (by melt mass percent Wt%), 1# magnesium ingot 40.00, 1# pure zinc 55.00, pure yttrium 2.00, electrolytic manganese 3.00 and in 200 ℃ for preheating baking, and then put into the furnace, in SF6 Under the protection of gas, in the induction furnace or resistance furnace according to the conventional magnesium alloy melting method, heat at 730°C for 25 minutes, refine and stand for 30 minutes, melt the quasicrystalline master alloy liquid that meets the chemical composition requirements, and pour it out of the furnace at 730°C Solidification forming in the metal mold to prepare a Mg 26 Zn 62 Y 10 mn 2 Master...

Embodiment 2

[0024] The chemical composition of the high-zinc-magnesium alloy reinforced by magnesium benchmark grain (by mass percent Wt%): Al: 5.00, Zn: 13.00, Mn: 0.40, Y1.: 00, Ni: 0.003, Fe: 0.03, Cu: 0.05, The remainder is Mg.

[0025] Firstly, prepare materials according to the required magnesium standard crystal intermediate alloy composition of the high zinc-magnesium alloy design composition (in terms of melt mass percentage Wt%), 1# magnesium ingot 50.00, 1# pure zinc 46.00, pure yttrium 3.00, electrolytic manganese 1.00 and Preheated and baked at 200°C, then loaded into the furnace, in SF 6 Under the protection of gas, in the induction furnace or resistance melting furnace according to the conventional magnesium alloy smelting method, heat at 720 ° C for 20 minutes, refine and stand for 35 minutes, melt the quasi-crystalline master alloy liquid that meets the chemical composition requirements, and pour it out at 720 ° C into the metal mold for solidification and forming, and a...

Embodiment 3

[0028] The chemical composition of the high-zinc-magnesium alloy reinforced by magnesium benchmark grain (by mass percent Wt%): Al: 3.50, Zn: 20.00, Mn: 0.70, Y0.: 70, Ni: 0.004, Fe: 0.05, Cu: 0.04, The remainder is Mg.

[0029] Firstly, prepare materials according to the required magnesium standard crystal master alloy composition of the high-zinc-magnesium alloy design composition (by melt mass percentage Wt%), 1# magnesium ingot 44.00, 1# pure zinc 49.00, pure yttrium 5.00, electrolytic manganese 2.00 and Preheated and baked at 200°C, then loaded into the furnace, in SF 6 Under the protection of gas, in the induction furnace or resistance melting furnace according to the conventional magnesium alloy melting method, heat at 740°C for 30 minutes, refine and stand for 40 minutes, melt the quasicrystalline master alloy liquid that meets the chemical composition requirements, and pour it out at 740°C into the metal mold for solidification and forming, and a kind of Mg 34 Zn 5...

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Abstract

The invention discloses a quasi-crystalline reinforced high-zinc magnesium alloy and making method, which comprises the following parts: 2.50-5.00% Al, 6.00-20.00% Zn, 40-1.00% Y0., 0.40-1.20% Mn, 0.003-0.005% Ni, 0.03-0.05% Fe, 0.03-0.05% Cu and Mg. the cast shaped tissue is alpha-Mg+Tau (Mg32(Al, Zn)49)+phi (Al2Mg5Zn2)+, which is displayed in the alpha-Mg or tao-phase and phi-phase rim constituted by MgxZnuYtMnw magnesium-based four-phased composite tissues of quasi-crystalline with relative bulk at 1.50-4.00% in the high-zinc magnesium alloy material.

Description

technical field [0001] The invention belongs to the field of magnesium alloy and its manufacture, and in particular relates to a high-zinc-magnesium alloy material reinforced with magnesium reference crystals and a manufacturing method thereof. Background technique [0002] Prior art, the publication number is CN1488773 "a rare earth-containing high-zinc-magnesium alloy and its preparation method", the alloy is mainly composed of Mg, Zn, Al, Mn, RE elements, and its main feature is Adding RE elements can refine grains and form new phases, improve the room temperature and high temperature mechanical properties of high-zinc-magnesium alloys, and overcome the shortcomings of ZAC8506 magnesium alloys that are easy to oxidize after adding calcium, and the preparation process is simple. [0003] In the prior art, the publication number is CN1546711 "Silicon-containing high-zinc-magnesium alloy and its preparation process", and the mass parts of its components are: Zn: 6-10%, Al: 2...

Claims

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Application Information

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IPC IPC(8): C22C23/04B22D21/04C22C1/03
Inventor 张金山韩富银梁伟许春香田爱环
Owner TAIYUAN UNIV OF TECH
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