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Magnesium-tin-zinc-aluminum-manganese wrought magnesium alloy and preparing method thereof

A technology for deforming magnesium alloys and magnesium alloys, applied in the field of magnesium alloys, can solve the problems of composition design and preparation methods of magnesium alloys without deformation, and achieve the effects of homogenization and low solution heat treatment temperature, improving strength and toughness, and excellent plasticity.

Active Publication Date: 2017-11-10
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

None of the above-mentioned references and other related magnesium alloys contains the compositional design and preparation method of the wrought magnesium alloy described in the patent of the present invention

Method used

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  • Magnesium-tin-zinc-aluminum-manganese wrought magnesium alloy and preparing method thereof
  • Magnesium-tin-zinc-aluminum-manganese wrought magnesium alloy and preparing method thereof
  • Magnesium-tin-zinc-aluminum-manganese wrought magnesium alloy and preparing method thereof

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[0024] The invention provides a low-cost magnesium-tin-zinc-aluminum-manganese deformed magnesium alloy and a preparation method thereof.

[0025] The experimental methods used in the following examples are conventional methods unless otherwise specified.

[0026] The materials and reagents used in the following examples can be obtained from commercial sources unless otherwise specified.

[0027] The percentages used in the following examples are all mass percentages unless otherwise specified.

Embodiment 1

[0029] The hot-rolled sheets of Mg-2Sn-2Zn-2Al-0.2Mn alloy were prepared and the mechanical properties of the materials were measured.

[0030] The process flow is: raw material preparation and batching→alloy smelting and casting→homogenizing annealing→hot rolling→finished plate.

[0031] With pure Mg (99.9%), pure Sn (99.99%), pure Zn (99.99%), pure Al (99.99%) and pure Mn (99.9%) as raw materials, according to Sn, Zn and Al are 2%, Mn is 0.2%, the balance is Mg ingredients, Al put into the vacuum induction melting furnace 2 o 3 in the crucible. Vacuumize first, and after the pressure in the vacuum induction melting furnace drops to 20Pa, argon gas is introduced to make the pressure of argon gas reach 0.04MPa. The Al containing raw material was then heated under the protection of argon 2 o 3 The crucible was refined at 800°C for 3 minutes, and then the alloy melt was poured into a cylindrical high-purity graphite mold with a diameter of 75mm, and cooled to room temperatu...

Embodiment 2

[0036] The hot-rolled sheets of Mg-4Sn-2Zn-2Al-0.2Mn alloy were prepared and the mechanical properties of the materials were measured.

[0037] The process flow is: raw material preparation and batching→alloy smelting and casting→homogenizing heat treatment→hot rolling→finished plate.

[0038] Using pure Mg (99.9%), pure Sn (99.99%), pure Zn (99.99%), pure Al (99.99%) and pure Mn (99.9%) as raw materials, Sn is 4%, Zn and Al are 2% , Mn is 0.2%, the balance is Mg ingredients, Al put into the vacuum induction melting furnace 2o 3 in the crucible. Vacuumize first, and after the pressure in the vacuum induction melting furnace drops to 20Pa, argon gas is introduced to make the pressure of argon gas reach 0.04MPa. The Al containing raw material was then heated under the protection of argon 2 o 3 The crucible was refined at 800°C for 3 minutes, and then the alloy melt was poured into a cylindrical high-purity graphite mold with a diameter of 75mm, and cooled to room temperatur...

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Abstract

The invention provides a magnesium-tin-zinc-aluminum-manganese wrought magnesium alloy and a preparing method thereof, and belongs to the technical field of magnesium alloys. The magnesium alloy comprises, by mass percent, 1.5%-4.5% of Sn, 1%-3% of Zn, 0.5%-2.5% of Al, 0.1%-0.5% of Mn and the balance Mg and unavoidable trace impurity elements. The magnesium alloy does not contain noble-metal alloy elements, the total alloy element content is 3.1%-10.5%, and the alloy cost is low. The alloy in the series is high in casting state plasticity, machining and deformation are easy, recrystallization is generated after heat machining deformation, grains are obviously refined, the strength is obviously improved, the high plasticity is kept, and cold machining deformation on the alloy is facilitated. The strength and plasticity of the alloy in the series are higher than those of a traditional commercial use AZ31 wrought magnesium alloy.

Description

technical field [0001] The invention relates to the technical field of magnesium alloys, in particular to a magnesium-tin-zinc-aluminum-manganese deformed magnesium alloy and a preparation method thereof. Background technique [0002] Magnesium alloy is a light metal structure and functional material that is currently being developed. It has been widely used in aerospace, transportation, biomedical and electronic industries and has a huge application prospect. Magnesium alloys use magnesium as the matrix, so most magnesium alloys have a close-packed hexagonal lattice structure. This structure has fewer dislocation slip systems that can be activated at lower temperatures and poor plastic deformation ability, resulting in more magnesium alloys with Cast products for application. Magnesium alloy as-cast products are prone to various casting defects and coarse microstructure, and their mechanical properties are low, which limits their application and promotion. Through plastic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/00C22C23/02C22C23/04C22F1/06
CPCC22C23/00C22C23/02C22C23/04C22F1/06
Inventor 石章智于静刘雪峰
Owner UNIV OF SCI & TECH BEIJING
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