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Method for preparing La-Ni-Mo-W/GO composite deposit layer on carbon steel substrate

A technology of deposition layer and carbon steel, applied in the direction of coating, electrolytic coating, etc., can solve the problem of insignificant surfactant effect, achieve the effect of improved wear resistance and corrosion resistance, high hardness, and smooth surface

Inactive Publication Date: 2016-03-23
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because Ni-Mo-W alloy has relatively excellent properties, it has attracted widespread attention. However, with the development of society, people's requirements for materials are becoming more and more stringent. At present, it is difficult to meet the needs in many fields, and more excellent deposition layers are urgently needed. to modify the matrix
At present, there are many methods to improve the activity and stability of the deposited layer, but there are no related reports on introducing graphene oxide (GO) into the RE-Ni-Mo-W deposited layer, and the current method of increasing GO in the coating is only Stay in a single surfactant, but the effect of a single surfactant is not significant

Method used

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  • Method for preparing La-Ni-Mo-W/GO composite deposit layer on carbon steel substrate
  • Method for preparing La-Ni-Mo-W/GO composite deposit layer on carbon steel substrate
  • Method for preparing La-Ni-Mo-W/GO composite deposit layer on carbon steel substrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The specifications of the carbon steel substrate are: 50mm×20mm×3mm.

[0021] ① Polishing of carbon steel: Use 400#, 800#, 1200#, 2000# metallographic sandpaper to polish the carbon steel in sequence to remove the oxide layer on the surface of the carbon steel. Then rinse with deionized water and set aside.

[0022] ② Degreasing of carbon steel: put carbon steel in 100ml sodium hydroxide solution with a concentration of 20%, and ultrasonically treat it at 55°C for 15 minutes to remove oil. Then rinse with deionized water and set aside.

[0023] ③Etching of carbon steel: put carbon steel in 100ml nitric acid solution with a concentration of 30%, treat it at 30°C for 4 minutes, then rinse it repeatedly with deionized water, and set it aside.

[0024] ④Activation of carbon steel: Put the carbon steel into 100ml hydrochloric acid solution with a concentration of 50%, treat it at 20°C for 7 minutes, then rinse it repeatedly with deionized water, and set it aside.

[0025]...

Embodiment 2

[0030] The specifications of the carbon steel substrate are: 50mm×20mm×3mm.

[0031] ① Polishing of carbon steel: Use 400#, 800#, 1200#, 2000# metallographic sandpaper to polish the carbon steel in sequence to remove the oxide layer on the surface of the carbon steel. Then rinse with deionized water and set aside.

[0032] ② Degreasing of carbon steel: put carbon steel in 100ml sodium hydroxide solution with a concentration of 20%, and ultrasonically treat it at 55°C for 15 minutes to remove oil. Then rinse with deionized water and set aside.

[0033] ③Etching of carbon steel: put carbon steel in 100ml nitric acid solution with a concentration of 30%, treat it at 30°C for 4 minutes, then rinse it repeatedly with deionized water, and set it aside.

[0034] ④Activation of carbon steel: Put the carbon steel into 100ml hydrochloric acid solution with a concentration of 50%, treat it at 20°C for 7 minutes, then rinse it repeatedly with deionized water, and set it aside.

[0035]...

Embodiment 3

[0039] The specifications of the carbon steel substrate are: 50mm×20mm×3mm.

[0040] ① Polishing of carbon steel: Use 400#, 800#, 1200#, 2000# metallographic sandpaper to polish the carbon steel in sequence to remove the oxide layer on the surface of the carbon steel. Then rinse with deionized water and set aside.

[0041] ② Degreasing of carbon steel: put carbon steel in 100ml sodium hydroxide solution with a concentration of 20%, and ultrasonically treat it at 55°C for 15 minutes to remove oil. Then rinse with deionized water and set aside.

[0042] ③Etching of carbon steel: put carbon steel in 100ml nitric acid solution with a concentration of 30%, treat it at 30°C for 4 minutes, then rinse it repeatedly with deionized water, and set it aside.

[0043] ④Activation of carbon steel: Put the carbon steel into 100ml hydrochloric acid solution with a concentration of 50%, treat it at 20°C for 7 minutes, then rinse it repeatedly with deionized water, and set it aside.

[0044]...

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Abstract

The invention discloses a method for preparing a La-Ni-Mo-W / GO composite deposit layer on a carbon steel substrate. The method comprises the steps that polishing, oil removing and etching treatment are conducted on carbon steel firstly; the carbon steel serves as a cathode, a platinum-plated metallic titanium screen plate serves as an anode, electrodeposition is conducted under the constant-temperature water bath condition, and the La-Ni-Mo-W / GO composite deposit layer is prepared. According to the method for preparing the La-Ni-Mo-W / GO composite deposit layer on the carbon steel substrate, by means of the method that rare earth element lanthanum (La), graphene oxide (GO) and surfactant compounded by sodium dodecyl sulfate and Tween-80 (SDS-T80) are added into Ni-Mo-W basic sediment liquid, the composite deposit layer is prepared on the carbon steel surface, and the prepared La-Ni-Mo-W / GO composite deposit layer has the advantages of being uniform in thickness, good in corrosion resistance, high in hardness and good in abrasion resistance.

Description

technical field [0001] The invention relates to the technical field of electroplating, in particular to a method for preparing a La-Ni-Mo-W / GO composite deposition layer on a carbon steel substrate. Background technique [0002] As an important functional structural metal material, low carbon steel is widely used in chemical industry, metallurgy, electronic information and other fields. However, its surface is soft and has high activity, which makes it difficult for low-carbon steel to meet certain specific requirements. Therefore, it is urgent to improve its surface properties, which is also a very important research direction in material science. Electrodeposition technology is one of the most effective methods. Electroplating (electrodeposition) is the process of using the principle of electrolysis to reduce the cations of the plated metal on the surface of the workpiece to be plated and to plate a thin layer of other metals or alloys on the surface of some metals, so th...

Claims

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Application Information

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IPC IPC(8): C25D3/56C25D15/00C25D5/36
CPCC25D3/56C25D5/36C25D15/00
Inventor 成汉文罗谨
Owner SHANGHAI INST OF TECH