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A kind of method of ionic liquid electrodeposition aluminum-manganese-titanium alloy

An ionic liquid and electrodeposition technology, applied in the field of metal materials, can solve the problems of high energy consumption, easy pulverization of alloy coatings, high toxicity of electroplating, etc., and achieve the effect of low material requirements, uniform coating, and low cost

Inactive Publication Date: 2015-08-26
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method solves the problems of high toxicity of organic solvent electroplating, many inclusions in the alloy coating, rough and non-dense coating, high temperature of molten salt electroplating, high energy consumption, high cost, and easy pulverization of the alloy coating in the prior art. The present invention adopts the following technologies Program realization

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The method for this ionic liquid electrodeposition aluminum manganese titanium alloy, its specific steps are as follows:

[0017] (1) In an inert gas environment, mix an organic compound (1-ethyl-3-methylimidazole chloride) with anhydrous aluminum trichloride at a molar ratio of 1:1.5 to form an ionic liquid, and then sequentially in the ionic liquid Add manganese salt (manganese chloride), titanium salt (titanium tetrachloride), and mix well to make ionic liquid electrolyte, wherein the concentration of manganese salt (manganese chloride) in the ionic liquid electrolyte is 0.05mol / L, titanium The concentration of salt (titanium tetrachloride) is 0.01mol / L;

[0018] (2) The pretreated substrate (stainless steel) is used as the cathode, the metal aluminum sheet is used as the anode, the distance between the anode and the cathode is 0.2cm, and the current density is 40A / m 2 , the temperature is 20°C, and the ionic liquid electrolyte prepared in step (1) is electrodeposit...

Embodiment 2

[0022] The method for this ionic liquid electrodeposition aluminum manganese titanium alloy, its specific steps are as follows:

[0023] (1) In an inert gas environment, mix an organic compound (1-ethylpyridine chloride) with anhydrous aluminum trichloride at a molar ratio of 1:3 to form an ionic liquid, and then add manganese salt (chlorine Manganese chloride), titanium salt (titanium tetrachloride), mixed evenly to make ionic liquid electrolyte, wherein the concentration of manganese salt (manganese chloride) in the ionic liquid electrolyte is 1mol / L, titanium salt (titanium tetrachloride) ) concentration is 0.5mol / L;

[0024] (2) The pretreated substrate (magnesium alloy) is used as the cathode, the metal titanium sheet is used as the anode, the distance between the anode and the cathode is 5cm, and the current density is 100A / m 2 , the temperature is 100°C, and the ionic liquid electrolyte prepared in step (1) is electro-deposited for 6 hours, and then the cathode is take...

Embodiment 3

[0028] The method for this ionic liquid electrodeposition aluminum manganese titanium alloy, its specific steps are as follows:

[0029] (1) In an inert gas environment, mix an organic compound (tetramethylammonium chloride) with anhydrous aluminum trichloride at a molar ratio of 1:1.5 to form an ionic liquid, and then add manganese salt (chloride Manganese), titanium salt (titanium tetrachloride), mixed evenly to make ionic liquid electrolyte, wherein the concentration of manganese salt (manganese chloride) in the ionic liquid electrolyte is 0.5mol / L, titanium salt (titanium tetrachloride) ) concentration is 0.02mol / L;

[0030] (2) Use the pretreated substrate (aluminum) as the cathode, graphite as the anode, the distance between the anode and the cathode is 2cm, and the current density is 50A / m 2 , the temperature is 80°C, and the ionic liquid electrolyte prepared in step (1) is electrodeposited for 4 hours, and then the cathode is taken out, and after washing and drying, a...

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Abstract

The invention relates to a method for forming an aluminum-manganese-titanium alloy through electrodeposition of an ionic liquid, belonging to the technical field of metal materials. The method comprises the following steps: in an inert gas environment, mixing organic compounds with anhydrous aluminum trichloride to form an ionic liquid; sequentially adding manganese salt and titanium salt into the ionic liquid, and uniformly mixing to obtain an ionic liquid electrolyte; and finally, taking a pretreated matrix as a cathode, taking a metal aluminum sheet, titanium sheet or graphite as an anode, ensuring that the distance between the anode and the cathode is 0.2-5cm, the current density is 40-100A / m<2> and the temperature is 20-100 DEG C, performing electrodeposition on the ionic liquid electrolyte prepared in the previous step, then taking out the cathode, rinsing, and drying to obtain the aluminum-manganese-titanium alloy on the surface of the cathode matrix. The method solves the problems of high organic solvent electroplating toxicity, multiple alloy coating inclusions, coarse and non-compact coating, high molten salt electroplating temperature, high energy consumption, high cost, high alloy coating pulverization possibility and the like in the prior art.

Description

technical field [0001] The invention relates to a method for electrodepositing an aluminum-manganese-titanium alloy with an ionic liquid, and belongs to the technical field of metal materials. Background technique [0002] Aluminum alloy coatings have developed rapidly due to their excellent properties such as corrosion resistance, decoration, and processability, and are widely used in the fields of electronics, aviation industry, and automobiles. The excellent corrosion resistance and decorative properties of aluminum-manganese alloy coatings have attracted widespread attention, especially the discovery of metallic glass structures, which has aroused people's interest in aluminum-manganese alloy coatings. In recent years, people have found that the introduction of titanium into aluminum-manganese alloys to form aluminum-manganese-titanium alloys can not only improve their corrosion resistance and hardness, but also help form a glass structure. Therefore, the preparation of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25C3/36
Inventor 徐存英华一新李坚饶帅
Owner KUNMING UNIV OF SCI & TECH