Check patentability & draft patents in minutes with Patsnap Eureka AI!

High-formability magnesium alloy double-layer composite plate containing rare earth yttrium and preparation method of high-formability magnesium alloy double-layer composite plate

A magnesium alloy sheet and magnesium alloy technology are applied in the field of high formability magnesium alloy double-layer composite sheet and its preparation, which can solve problems such as cracking and failure, and achieve the effects of good bonding performance, fine grain structure and improved formability.

Active Publication Date: 2022-03-15
CHONGQING UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, ordinary AZ31 magnesium alloys and composite plates often fail due to outer cracks during secondary forming processes such as bending, deep drawing, and bulging

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-formability magnesium alloy double-layer composite plate containing rare earth yttrium and preparation method of high-formability magnesium alloy double-layer composite plate
  • High-formability magnesium alloy double-layer composite plate containing rare earth yttrium and preparation method of high-formability magnesium alloy double-layer composite plate
  • High-formability magnesium alloy double-layer composite plate containing rare earth yttrium and preparation method of high-formability magnesium alloy double-layer composite plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A magnesium alloy ingot (Mg-0.2wt%Y) with a low content of rare earth yttrium is prepared according to the designed alloy composition ratio, and the magnesium ingot and the Mg-30wt%Y master alloy are used as raw materials; under the protective gas, the magnesium ingot is added Heat and melt in a melting furnace, raise the temperature to 720°C, add Mg-Y master alloy to the magnesium liquid, heat up to 740°C after melting, keep the temperature for 15 minutes, let stand and cool to 720°C for casting, and obtain Mg-0.2 wt% Y alloy ingot billet.

[0036] The smelted Mg-0.2wt% Y alloy and the AZ31 ingot were cut into two semi-cylindrical bodies with the same volume along the axial direction by wire-cutting the round ingot with a diameter of 80 mm and a height of 80 mm. Then the semi-cylindrical AZ31 and Mg-0.2wt%Y ingots were spliced ​​into a complete cylinder. Homogenization treatment at 400°C for 12h before extrusion. Then carry out symmetrical split die extrusion at 380°...

Embodiment 2

[0049] A magnesium alloy ingot (Mg-0.2wt%Y) with a low content of rare earth yttrium (Mg-0.2wt%Y) is equipped with a magnesium ingot and a Mg-Y master alloy as raw materials according to the designed alloy composition ratio; under a protective gas, the magnesium ingot is added to the smelting furnace Heat and melt in medium temperature, raise the temperature to 720°C, add Mg-Y master alloy to the magnesium liquid, heat up to 740°C after melting, keep warm for 15 minutes after uniform temperature, stand and cool to 720°C for casting, and obtain Mg-0.2wt% Y alloy ingot billet.

[0050] The smelted Mg-0.2wt% Y alloy and the AZ31 ingot were cut into two semi-cylindrical bodies with the same volume along the axial direction by wire-cutting the round ingot with a diameter of 80 mm and a height of 80 mm. Then the semi-cylindrical AZ31 and Mg-0.2wt%Y alloys were spliced ​​into complete cylinders. Homogenization treatment at 400°C for 12h before extrusion. Then carry out symmetrical ...

Embodiment 3

[0056] A magnesium alloy ingot (Mg-0.3wt%Y) with a low content of rare earth yttrium (Mg-0.3wt%Y) is equipped with a magnesium ingot and a Mg-Y master alloy as raw materials according to the designed alloy composition ratio; under a protective gas, the magnesium ingot is added to the smelting furnace Heat and melt in medium temperature, raise the temperature to 720°C, add Mg-Y master alloy to the magnesium liquid, heat up to 740°C after melting, keep warm for 15 minutes after uniform temperature, stand and cool to 720°C for casting, and obtain Mg-0.5wt% Y alloy ingot billet.

[0057] The smelted Mg-0.3wt% Y alloy and the AZ31 ingot were cut into two semi-cylindrical bodies with the same volume along the axial direction by wire-cutting the round ingot with a diameter of 80 mm and a height of 80 mm. Then the semi-cylindrical AZ31 and Mg-0.3wt%Y alloys were spliced ​​into complete cylinders. Homogenization treatment at 400°C for 12h before extrusion. Then carry out symmetrical ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a rare earth yttrium-containing high-formability magnesium alloy double-layer composite plate and a preparation method thereof, the double-layer composite plate comprises a yttrium-containing magnesium alloy plate and an AZ31 magnesium alloy plate, and the double-layer composite plate is obtained by extrusion forming of a yttrium-containing magnesium alloy ingot and an AZ31 alloy ingot. According to the invention, a part of high-plasticity magnesium-yttrium alloy ingots and conventional AZ31 alloy ingots are subjected to symmetric divergent die extrusion, so that the AZ31 / Mg-0. 2wt% Y layered composite board is successfully prepared. Compared with a strong base surface texture of a single AZ31 plate, the AZ31 layer of the composite plate has coarse grain and weak base surface texture characteristics; and the Mg-Y layer has fine grain and weak rare earth double-peak texture characteristics. Through observation of a transmission electron microscope, it can be found that an interdiffusion region with the width of 0.35 [mu] m appears at the interface, it is indicated that good metallurgical bonding performance is shown between the AZ31 layer and the Mg-Y layer, and a good crystallographic matching relation is kept between a matrix and the diffusion region. And good interface bonding ensures the excellent mechanical property and forming property of the composite board.

Description

technical field [0001] The invention belongs to the technical field of magnesium alloy composite board material preparation, and in particular relates to a high-formability magnesium alloy double-layer composite board containing rare earth yttrium and a preparation method thereof. Background technique [0002] The density of magnesium is 1.74g / cm 3 , The density of magnesium alloy is about 2 / 3 of that of aluminum alloy and 1 / 4 of that of steel. Magnesium alloy has many advantages such as low density, light weight, high dimensional stability, good electromagnetic shielding performance, good cutting and processing characteristics, good specific strength and specific stiffness, good thermal conductivity, good electrical conductivity and high recyclability, etc. These advantages have led to a sharp increase in the application and demand of structural and processing components. Magnesium alloy products can be applied to most 3C (computer, communication and consumer electronics)...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/01B32B33/00B21C23/00B22D7/00C22C1/03C22C23/06C22F1/06
CPCB32B15/01B32B33/00B21C23/002C22C23/06C22C1/03B22D7/005C22F1/06
Inventor 袁明蒋斌何超王庆航白生文潘复生宋燕董志华张昂高瑜阳杨鸿
Owner CHONGQING UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com