Corrosion-resistant magnesium alloy

A magnesium alloy, corrosion-resistant technology, applied in the field of metal alloy materials, can solve the problems of poor plasticity at room temperature, low mechanical properties, and non-corrosion resistance, and achieve the effects of reducing corrosion rate, improving corrosion resistance, and reducing the number

Inactive Publication Date: 2015-01-07
河南德威科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned technical defects, the present invention provides a corrosion-resistant magnesium alloy, which solves the problems of easy combustion during smelting, poor room temperature plasticity, low mechanical properties, and non-corrosion resistance in the pri

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] Example 1

[0020] A corrosion-resistant magnesium alloy, the weight percentage of the chemical composition of the magnesium alloy: Al is 6wt%, Zn is 0.4wt%, Mn is 0.01wt%, V is 0.001wt%, and the balance is Mg.

[0021] Weigh the materials according to the ratio. After preheating each component to 220℃, put the aluminum ingots, zinc ingots and manganese nails into a low carbon steel crucible at a preheating temperature of 280℃ to melt, and then pass SF 6- CO 2 Shielding gas (SF 6 : CO 2 The volume ratio is 1:10). When the components are completely melted and the melt temperature reaches 740°C, add the vanadium ingot. The vanadium ingot is preheated to 200°C, then continuously stirred, and SF is introduced 6 -CO 2 Protect the gas until the alloy is completely melted, stir for 5 minutes, and let it stand for 20 minutes when the temperature reaches 710°C, and pouring at 700°C to finally obtain a corrosion-resistant magnesium alloy containing vanadium.

Example Embodiment

[0022] Example 2

[0023] A corrosion-resistant magnesium alloy, the weight percentage of the chemical composition of the magnesium alloy: Al is 9wt%, Zn is 1.0wt%, Mn is 0.3wt%, V is 1.0wt%, and the balance is Mg.

[0024] Weigh the materials according to the ratio. After preheating each component to 220℃, put the aluminum ingots, zinc ingots and manganese nails into a low carbon steel crucible at a preheating temperature of 280℃ to melt, and then pass SF 6- CO 2 Shielding gas (SF 6 : CO 2 The volume ratio is 1:10). When the components are completely melted and the melt temperature reaches 730°C, add the vanadium ingot. The vanadium ingot is preheated to 200°C, then continuously stirred, and SF is introduced 6 -CO 2 Protect the gas until the alloy is completely melted, stir for 5 minutes, and let it stand for 20 minutes when the temperature reaches 710°C, and pouring at 700°C to finally obtain a corrosion-resistant magnesium alloy containing vanadium.

Example Embodiment

[0025] Example 3

[0026] A corrosion-resistant magnesium alloy, the weight percentage of the chemical composition of the magnesium alloy: Al is 7wt%, Zn is 0.5wt%, Mn is 0.03wt%, V is 0.009wt%, and the balance is Mg.

[0027] The method for preparing the corrosion-resistant magnesium alloy is the same as in Example 1.

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PUM

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Abstract

The invention relates to the technical field of metal alloy materials, and particularly relates to corrosion-resistant magnesium alloy. The magnesium alloy comprises the following chemical components in percentage by mass: 6-9wt% of Al, 0.4-1.0wt% of Zn, 0.01-0.3wt% of Mn, 0.001-1.0wt% of V, and the balance of Mg. Due to addition of vanadium, the corrosion potential of the magnesium alloy is improved, the corrosion current density is lowered, the corrosion rate of the magnesium alloy is obviously lowered, and is just 52.81% of original alloy corrosion rate, and the corrosion resistance of the alloy is significantly improved.

Description

technical field [0001] The invention relates to the technical field of metal alloy materials, in particular to a corrosion-resistant magnesium alloy. Background technique [0002] Magnesium alloy has high specific strength and specific stiffness (density of 1.738g / cm3), good shock absorption and machinability, etc., and is the lightest metal structural material in practical applications. Therefore, in recent years, magnesium The application of alloys as structural materials is developing rapidly. [0003] At present, the most widely used ones are AZ91D magnesium alloy used in the foundry industry, and deformed magnesium alloys AZ31, AZ61, AZ80, ZK60 used in profiles and plates. However, its poor corrosion resistance has become an obstacle to the industrial application of magnesium alloys, and how to improve its corrosion resistance is very important. Research work on improving the corrosion resistance of magnesium alloys has been carried out extensively at home and abroad....

Claims

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Application Information

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IPC IPC(8): C22C23/02
CPCC22C23/02
Inventor 姬胜国
Owner 河南德威科技股份有限公司
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