High-strength and high-corrosion-resistance rare earth magnesium alloy and preparation method thereof

A technology of high corrosion resistance and rare earth magnesium, applied in the field of non-ferrous metal processing, can solve the problem of insufficient strength, achieve the effect of improving quality, improving strength and plasticity, and increasing strength

Active Publication Date: 2021-09-07
XI AN JIAOTONG UNIV
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the fact that the strength of the existing magnesium alloy materials is not

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-strength and high-corrosion-resistance rare earth magnesium alloy and preparation method thereof
  • High-strength and high-corrosion-resistance rare earth magnesium alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] The preparation method of high strength high-resistant rare earth magnesium alloy sheets of the present invention includes the following steps:

[0027] Step 1, weigh the percentage of mass: aluminum: 6% -8%, mixture of yttrium and guanadium: 0.4% -0.6%, manganese: 0.2% -0.5%, mixture of lanthanum, ruthenium andium: 0.2% -0.6 %, The rest is magnesium; where the content of the yttrium is 0.2% -0.3% of the high strength high-resistant rare earth magnesium alloy mass, the content of ruthenium is 0.2% -0.3%, ruthenium of high strength high-resistant rare earth magnesium alloy. The content is 0.05% -0.2% of the high strength high-resistant rare earth magnesium alloy. The content of ruthenium is 0.05% -0.2% of high strength high-resistant rare earth magnesium alloy, and the content of neodymath is high in high-resistant rare earth magnesium alloy. 0.05% -0.2% of mass;

[0028] Step 2, the raw material weighing in step 1 is placed in a smelting furnace, adding a cover and refining...

Example Embodiment

[0038] Example 1

[0039] The high-strength high-resistant rare earth magnesium alloy sheet is prepared, including the following steps:

[0040] Step 1, with a percentage of aluminum: 6%, yttrium and mixture of mixture of 0.4%, manganese: 0.2%, lanthanum, and mixture: 0.2%, and the rest is magnesium; where the content is 0.2 %, The content of is 0.2%; the content of lanthanum is 0.05%, the content of ruthenium is 0.05%, and the content of is 0.1%;

[0041] Step 2, put the raw material weighing step 1 into the smelting furnace, adding the covering of the cover and refining agent, heating the temperature rise to 750 ° C to obtain a molten liquid for 15 minutes, cool down the molten liquid to 720 ° C and stand for 5 min, cast a half Continuous magnesium alloy ingots;

[0042] Step 3, the semi-continuous magnesium alloy ingot prepared in step 2 is held at 380 ° C for 8 h, and then the magnesium alloy cast rod after solid solution treatment is taken away;

[0043] Step 4, the heat trea...

Example Embodiment

[0048] Example 2

[0049] The high-strength high-resistant rare earth magnesium alloy sheet is prepared, including the following steps:

[0050] Step 1, with a percentage of aluminum: 6.5%, yttrium and guanadium mixtures: 0.45%, manganese: 0.3%, lanthanum, and mixture: 0.25%, the rest is magnesium; where the yttrium content is 0.23, respectively. %, The content of is 0.22%; the content of lanthanum is 0.1%, the content of is 0.1%, and the content of is 0.05%;

[0051] Step 2, put the raw material weighing in step 1 into the smelting furnace, adding the covering of the cover and refining, heating the temperature of the temperature to 760 ° C to obtain a molten liquid to warm up 17 min, cool down the molten liquid to 723 ° C and stand for 7 min, cast a half Continuous magnesium alloy ingots;

[0052] Step 3, the semi-continuous magnesium alloy ingot prepared in step 2 was held under 390 ° C for 9 h, and then the magnesium alloy cast rod after solid solution treatment was taken away;...

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
Widthaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a high-strength and high-corrosion-resistance rare earth magnesium alloy plate and a preparation method thereof. The high-strength and high-corrosion-resistance rare earth magnesium alloy plate comprises the following components in percentage by mass: 6-8% of aluminum, 0.4-0.6% of heavy rare earth elements, 0.2-0.5% of manganese, 0.2-0.6% of light rare earth elements, and the balance of magnesium. The preparation method comprises the following steps that: the raw materials are mixed and heated to 750-780 DEG C for insulation by 15-20min, and are cooled to 720-730 DEG C for standing by 5-10min; a magnesium alloy cast ingot is obtained by a semi-continuous casting method; the cast ingot is peeled to obtain a heat treatment cast rod after solution treatment by 8-12h at 380-410 DEG C; the heat treatment cast rod is pre-extruded; the extruded plate is hot-rolled by 9-11 times; the single rolling reduction is 8-10% of rolling deformation; and the rolled plate is annealed to obtain the high-strength and high-corrosion-resistance rare earth magnesium alloy plate. The rare earth magnesium alloy plate has the advantages of high strength, high corrosion resistance and low cost; and the preparation method is simple in flow, high in efficiency and high in yield.

Description

technical field [0001] The invention belongs to the technical field of nonferrous metal processing, and relates to a high-strength, high-corrosion-resistant rare earth magnesium alloy and a preparation method thereof. Background technique [0002] Magnesium alloy is currently the lightest structural material in engineering applications. It also has high specific strength, specific modulus, good casting and machining properties, so it has broad application prospects. However, compared with aluminum alloys, the strength of magnesium alloys is still low. For rolled plates, the strength of commercial AZ31 plates is only about 180MPa. However, AZ91 is often used to prepare high-strength die-castings. If it is used to prepare rolled plates, there will often be cracks at the processing edges, resulting in low yields, and it is not suitable for preparing wide-width rolled plates. Some data report that the yield strength of AZ91D plate is even lower than that of AZ31B rolled plate....

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
IPC IPC(8): C22C23/02C22C1/02C22F1/06
CPCC22C23/02C22C1/02C22F1/06
Inventor 房大庆韩呈祥邓俊楷张晓茹付伟吴颖丁向东孙军
Owner XI AN JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap