Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Magnesium alloy material with high corrosion resistance and preparation method of magnesium alloy material

A corrosion-resistant, magnesium alloy technology, applied in the field of high corrosion-resistant magnesium alloy materials and their preparation, can solve the problems of corrosion, magnesium alloy corrosion resistance is not too ideal, affecting the effect or life of the application, etc., to achieve a wide range of sources. Effect

Inactive Publication Date: 2015-03-11
ZHONGBEI UNIV
View PDF7 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Magnesium alloys have many excellent properties, which is also the fundamental premise for the wide application of magnesium alloys. However, the application of magnesium alloys in various environments will inevitably cause corrosion problems, because the chemical activity of magnesium determines the corrosion resistance of magnesium alloys. It will be too ideal, and it may affect the effect or life of its application due to corrosion in various application environments, which will greatly increase the application cost of magnesium alloys
Magnesium Alloys Lose Momentum When Application Costs Are Too High

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
  • Magnesium alloy material with high corrosion resistance and preparation method of magnesium alloy material
  • Magnesium alloy material with high corrosion resistance and preparation method of magnesium alloy material
  • Magnesium alloy material with high corrosion resistance and preparation method of magnesium alloy material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] In this example, the composition and mass percentage of the high corrosion-resistant magnesium-aluminum alloy are: Al: 4.5%, Zn: 1.5%, Mn: 0.1%, Y: 0.1%; content of impurity elements: Fe: 0.008%, Ni: 0.001%, Cu: 0.0004%, Si: 0.02%, Ca: 0.0019%, and the balance is magnesium.

[0016] Weigh the material according to the ratio, preheat the pure magnesium ingot to 250°C and put it into a 45# steel crucible with a preheating temperature of 500°C to melt it, and pass it into SF 6 +CO 2 +N 2 Protective gas (mixed gas ratio / V%: 50N 2 +50CO 2 +0.3SF 6 ), and the temperature was raised to 700°C. After the magnesium ingot is completely melted, raise the temperature to 720°C, add pure aluminum preheated to 250°C, stir for 2-3 minutes after adding until it is completely melted, then follow the method of adding pure aluminum to keep the temperature at 720°C and add in sequence Pure zinc, Al-10%Mn master alloy, Mg-30%Y master alloy. After it is all melted, skim off the surface ...

Embodiment 2

[0018] In this example, the composition and mass percentage of the high corrosion-resistant magnesium-aluminum alloy are: Al: 5.0%, Zn: 1.8%, Mn: 0.2%, Y: 0.3%; content of impurity elements: Fe: 0.0063%, Ni: 0.0026%, Cu: 0.0004%, Si: 0.026%, Ca: 0.0023%, and the balance is magnesium.

[0019] Weigh the material according to the ratio, preheat the pure magnesium ingot to 250°C and put it into a 45# steel crucible with a preheating temperature of 500°C to melt it, and pass it into SF 6 +CO 2 +N 2 Protective gas (mixed gas ratio / V%: 50N 2 +50CO 2 +0.3SF 6 ), and the temperature was raised to 700°C. After the magnesium ingot is completely melted, raise the temperature to 720°C, add pure aluminum preheated to 250°C, stir for 2-3 minutes after adding until it is completely melted, then follow the method of adding pure aluminum to keep the temperature at 720°C and add in sequence Pure zinc, Al-10%Mn master alloy, Mg-30%Y master alloy. After it is all melted, skim off the surfa...

Embodiment 3

[0021] In this example, the composition and mass percentage of the high corrosion-resistant magnesium-aluminum alloy are: Al: 5.5%, Zn: 2.0%, Mn: 0.3%, Y: 0.5%; content of impurity elements: Fe: 0.0033%, Ni: 0.0011%, Cu<0.0004%, Si: 0.013%, Ca: 0.0020%, and the balance is magnesium.

[0022] Weigh the material according to the ratio, preheat the pure magnesium ingot to 250°C and put it into a 45# steel crucible with a preheating temperature of 500°C to melt it, and pass it into SF 6 +CO 2 +N 2 Protective gas (mixed gas ratio / V%: 50N 2 +50CO 2 +0.3SF 6 ), and the temperature was raised to 700°C. After the magnesium ingot is completely melted, raise the temperature to 720°C, add pure aluminum preheated to 250°C, stir for 2-3 minutes after adding until it is completely melted, then follow the method of adding pure aluminum to keep the temperature at 720°C and add in sequence Pure zinc, Al-10%Mn master alloy, Mg-30%Y master alloy. After it is all melted, skim off the surfac...

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

No PUM Login to View More

Abstract

The invention belongs to the field of metal materials, and particularly relates to an alloy proportion of a magnesium alloy with high corrosion resistance. The alloy material comprises components in percentage by mass as follows: 4.5%-5.5% of Al, 1.5%-2% of Zn, 0.1%-0.3% of Mn, 0.1%0.5% of Y as well as impurities, the impurities comprise elements as follows: smaller than or equal to 0.01% of Fe, smaller than or equal to 0.003% of Ni, smaller than or equal to 0.0004% of Cu, smaller than or equal to 0.03% of Si, smaller than or equal to 0.002% of Ca and the balance of magnesium. By means of Al, Mn, Zn and Y alloying scientific formula design, the corrosion resistance of the magnesium alloy is greatly improved with lower cost; and besides, 5% of NaCl contained neutral salt spray test is performed for 120 h, the corrosion rate v (agravity) is smaller than 0.008 mg*cm<-2>*h<-1>, and v (depth) is smaller than 0.5 mm / a.

Description

technical field [0001] The invention relates to a high corrosion-resistant magnesium alloy material and a preparation method thereof, belonging to the technical field of metal materials. Background technique [0002] Magnesium alloys have many excellent properties, which is also the fundamental premise for the wide application of magnesium alloys. However, the application of magnesium alloys in various environments will inevitably cause corrosion problems, because the chemical activity of magnesium determines the corrosion resistance of magnesium alloys. It will be too ideal, and corrosion may affect its application effect or life in various application environments, which will greatly increase the application cost of magnesium alloys. When the application cost is too high, the application of magnesium alloy will lose momentum. It can be said that the corrosion problem is one of the key factors restricting the application of magnesium in various fields. Only by better solvi...

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): C22C23/02C22C1/03C22C1/06
CPCC22C23/02C22C1/03C22C1/06
Inventor 毛红奎杨晓禹徐宏张国伟
Owner ZHONGBEI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com