CN113699526A - Method for plating corrosion-resistant super-hydrophobic film layer on surface of magnesium alloy - Google Patents
Method for plating corrosion-resistant super-hydrophobic film layer on surface of magnesium alloy Download PDFInfo
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- CN113699526A CN113699526A CN202111024126.9A CN202111024126A CN113699526A CN 113699526 A CN113699526 A CN 113699526A CN 202111024126 A CN202111024126 A CN 202111024126A CN 113699526 A CN113699526 A CN 113699526A
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- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/18—Pretreatment of the material to be coated
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- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/18—Pretreatment of the material to be coated
- C23C18/1803—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces
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- C23C18/1827—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces by chemical pretreatment only one step pretreatment
- C23C18/1834—Use of organic or inorganic compounds other than metals, e.g. activation, sensitisation with polymers
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- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
- C23C18/34—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents
- C23C18/36—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents using hypophosphites
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- C25D3/00—Electroplating: Baths therefor
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- C25D5/48—After-treatment of electroplated surfaces
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- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/60—Electroplating characterised by the structure or texture of the layers
- C25D5/615—Microstructure of the layers, e.g. mixed structure
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Abstract
The invention discloses a method for plating a corrosion-resistant super-hydrophobic film layer on the surface of magnesium alloy, belonging to the technical field of surface modification and corrosion prevention of metal materials. Firstly, washing a pre-ground magnesium alloy matrix in an ultrasonic cleaning instrument by using deionized water and ethanol; then carrying out sand blasting and acid washing on the magnesium alloy matrix, and then carrying out chemical nickel plating on the sample; and then placing the treated sample in an electrochemical nickel plating device for electrochemical nickel plating treatment. And finally, chemically modifying the surface of the nickel layer by using an ethanol solution containing stearic acid through a dipping and extraction method to reduce the surface free energy of the nickel layer. The surface of the magnesium alloy is provided with the corrosion-resistant super-hydrophobic film layer, and the corrosion resistance of the magnesium alloy is effectively improved.
Description
Technical Field
The invention relates to a preparation method of a corrosion-resistant super-hydrophobic film layer, in particular to a method for plating a corrosion-resistant super-hydrophobic film layer on the surface of a magnesium alloy, and belongs to the technical field of surface modification and corrosion prevention of metal materials.
Background
Magnesium is the eighth most abundant element of the crust of the earth, and its density is 1.74g/cm3Magnesium alloy is the lightest metal structural material, and is widely applied to the industries of aerospace, aviation, automobiles, electronics, communication and the like due to the advantages of rich resources, small relative specific gravity, high strength, good rigidity, excellent electromagnetic shielding and damping performance, recoverability and the like. Magnesium alloy is also known as a 'century green engineering material', in order to reduce the energy consumption of automobiles and reduce the emission of waste gas, magnesium alloy is inevitably selected to replace steel components on automobiles, and the application prospect in the aerospace industry is more and more extensive.
However, magnesium has low chemical activity, and is limited in its application because its standard electrode potential (-2.363V, about 1.9V lower than iron and about 0.7V lower than aluminum) at 25 ℃ is the lowest of all structural metals. Therefore, the poor corrosion resistance of magnesium also places certain limitations on its application.
The super-hydrophobic film layer has important research value on the corrosion prevention of the metal surface due to the natural hydrophobic function. In recent years, people pay more attention to control the surface wettability by simulating the structure of a biological surface, prepare a super-hydrophobic surface and expand the potential functional application of the super-hydrophobic surface to various fields.
The factors influencing the superhydrophobic performance of the solid surface are mainly two: chemical composition and surface roughness. Common methods for preparing superhydrophobic materials are plasma treatment, a template method, a spin coating method and a spray coating method, electrostatic spinning, a self-assembly method, an etching method, a laser method, and in addition to the above-mentioned methods, a phase separation method, a sol-gel method, a solvothermal method, an electrochemical method, a vapor deposition method, and the like. However, most of the methods have the problems of complicated preparation process, long duration, poor expandability and incapability of large-area implementation, thereby severely restricting the application in practical production. Therefore, the preparation method which is simple and easy to operate, good in repeatability and low in cost has very important significance.
Disclosure of Invention
Aiming at the technical problems, the invention provides a method for plating a corrosion-resistant super-hydrophobic film layer on the surface of magnesium alloy, which is simple and easy to operate, has good repeatability and reduces the production cost.
In order to achieve the above purpose, the invention provides the following technical scheme:
a method for plating a corrosion-resistant super-hydrophobic film layer on the surface of magnesium alloy comprises the following steps:
s1, cleaning the pre-ground magnesium alloy sample;
s2, after sand blasting and acid washing are carried out on the magnesium alloy sample, the surface of the magnesium alloy substrate is roughened, and more nucleation sites are obtained;
s3, plating a nickel layer with a certain thickness on the rough surface of the magnesium alloy sample after treatment by chemical plating, so that the surface of the magnesium alloy sample obtains a cellular structure;
s4, placing the chemical plating sample in an electrochemical nickel plating solution, wherein the chemical plating sample is used as a cathode, a nickel plate is used as an anode, and performing electrochemical nickel plating treatment to form a uniform micro/nano-scale cauliflower-like structure on the surface of the chemical plating sample;
and S5, immersing the electroplating sample into an ethanol solution containing stearic acid at room temperature, and chemically modifying the surface of the nickel by using an immersion and extraction method to form the corrosion-resistant super-hydrophobic film layer on the surface of the magnesium alloy sample.
Further, step S1 is performed in an ultrasonic cleaning apparatus using deionized water and ethanol.
Further, in step S2, a sand blasting machine is used for carrying out sand blasting treatment on the surface of the sample, 280-mesh white corundum sand is selected as sand, the sand blasting pressure is 0.10-0.30MPa, the sand blasting distance is 80-120cm, and the sand blasting time is 1-3 min.
Further, the pickling solution in step S2 includes: 100-140g/L CrO3，90-110ml/L HNO3。
Further, the acid washing time in step S2 is 30-40S, and the acid washing is followed by rinsing with deionized water.
Further, the electroless nickel plating solution in step S3 includes NiSO 16-20g/L4·6H2O、10-18g/L CH3COONa、14-18g/L NaH2PO2·H2O、10g/L NH4HF210-14mL/L HF and 10-18mL/L NH3H2O; the pH value of the solution is 6-7; the solution is prepared at 76-86 ℃.
Further, in step S3, the electroless nickel plating is carried out at 86-76 ℃ for 30-40 minutes.
Further, the electrochemical nickel plating solution in step S4 includes 1.2-1.8mol/L NiCl2·6H2O、0.6-1.2mol/L H3BO3And 1.4-2.0mol/L EDA.2HCl, the preparation temperature of the solution is 50-66 ℃, and the pH value of the solution is 3.6-5.0.
Further, in the step S4, during the electrodeposition process, the current density is applied by the DC power supply to be about 15-20mA/cm2The constant current power supply is used for 4-8 minutes.
Further, in step S5, the concentration of the ethanol solution containing stearic acid is 0.0135-0.02mol/L, and the soaking time is 30-40 min.
Compared with the prior art, the invention has the beneficial effects that:
the invention plates the method of the corrosion-resistant ultra hydrophobic membrane layer on the surface of magnesium alloy, wash the magnesium alloy matrix ground in advance sequentially in the ultrasonic cleaning instrument with deionized water and ethanol at first, then after carrying on the sand blasting to the magnesium alloy matrix, carry on the acid cleaning, make the surface of magnesium alloy rough, obtain more nucleation sites; then putting the substrate in the electrochemical nickel plating solution to obtain a cellular structure on the surface of the substrate; then placing the substrate in an electrochemical nickel plating device for electrochemical nickel plating treatment, and further covering a layer of uniform micro/nano cauliflower-like structure coating on the chemical nickel plating coating, wherein the regular cauliflower-like structure can capture a large amount of air, can support water drops on the surface of AZ91D magnesium alloy and shows super-hydrophobicity; and finally, the treated substrate is placed into an ethanol solution containing stearic acid for soaking and modification, so that the surface free energy of the substrate is reduced, a corrosion-resistant super-hydrophobic film layer is obtained on the surface of the magnesium alloy, and the corrosion resistance of the magnesium alloy is effectively improved. The method combines the sand blasting process, the chemical plating and the electrochemical deposition, the static contact angle of the surface prepared by the method for preparing the super-hydrophobic surface on the surface of the magnesium alloy is about 157.8 +/-1 degrees, and the film has higher stability and durability under the room temperature condition.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings.
FIG. 1 is an electron microscope image of an electroless plating surface provided by an embodiment of the invention;
fig. 2 is a schematic cross-sectional view of a super-hydrophobic coating provided by an embodiment of the invention.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the following embodiments and the accompanying drawings.
Example 1
The invention provides a method for plating a corrosion-resistant super-hydrophobic film layer on the surface of magnesium alloy, which comprises the following steps:
s1, taking a magnesium alloy sample (with the size of 20 multiplied by 4mm), polishing the surface of the magnesium alloy by 400-plus 2000# silicon carbide abrasive paper, removing surface oxide skin, sequentially placing the magnesium alloy sample in deionized water and ethanol by an ultrasonic cleaner, respectively ultrasonically cleaning for 15min, removing surface oil stains, drying the magnesium alloy sample at room temperature, and preparing for treatment.
S2, performing sand blasting and acid pickling treatment on the magnesium alloy substrate 1.
Wherein: the specific implementation mode of the sand blasting treatment is as follows: and (3) carrying out sand blasting treatment on the surface of the sample by using a sand blasting machine on the magnesium alloy matrix 1 treated in the step (1). 280-mesh white corundum sand (Al) is selected as sand2O3) The sand blasting pressure is 0.20MPa, the sand blasting distance is 100cm, and the sand blasting time is 2 min.
The pickling solution comprises: 120g/L CrO3，100ml/L HNO3(ii) a Preparing at room temperature; the acid washing time was 35 s.
After sand blasting and acid washing are carried out on the magnesium alloy sample, the surface of the magnesium alloy substrate is roughened, and more nucleation sites are obtained.
S3, plating a nickel layer 2 with a certain thickness on the rough surface of the magnesium alloy sample after treatment by chemical plating, so that the surface of the magnesium alloy sample obtains a cell structure 3, as shown in figure 1 and figure 2.
Wherein, the chemical nickel plating solution comprises the following components: 18g/L NiSO4·6H2O；14g/L CH3COONa；16g/L NaH2PO2·H2O；10g/L NH4HF2；12mL/L HF；14mL/L NH3·H2O; the pH value is 6.5; the solution was prepared at 81 ℃.
S4, placing the chemical plating sample in an electrochemical nickel plating solution, wherein the chemical plating sample is used as a cathode, a nickel plate is used as an anode, and performing electrochemical nickel plating treatment to form a uniform micro/nano-scale cauliflower-like structure 4 on the surface of the chemical plating sample, and the cross-sectional schematic diagram is shown in FIG. 2.
The electrochemical nickel plating solution comprises the following components: 1.5mol/L NiCl2·6H2O、0.9mol/L H3BO3And 1.7mol/L EDA.2HCl (EDA, ethylenediamine); the temperature is 58 ℃, and the pH value of the solution is 4.3; during the electrodeposition process, a current density of about 17mA/cm was applied by a DC power supply2The constant current power supply is used for 5 minutes.
And S5, immersing the electroplating sample into an ethanol solution containing stearic acid at room temperature, and chemically modifying the surface of the nickel by using an immersion and extraction method to form the corrosion-resistant super-hydrophobic film layer on the surface of the magnesium alloy sample. Wherein, the concentration of the ethanol solution containing stearic acid is 0.0167mol/L, and the soaking time is 35 min.
The invention selects Gamry 3000 to test the corrosion resistance of the sample, measures the potentiodynamic polarization curve, and adopts the working principle of tafel linear extrapolation method. The measurement is carried out by adopting a three-electrode system consisting of a sample as a working electrode, a platinum electrode as a counter electrode and a Saturated Calomel Electrode (SCE) as a reference electrode, wherein the corrosion medium selected in the test is 3.5 wt% of NaCl solution, and the sample is firstly immersed in the corrosion solution for 30min to stabilize the open-circuit potential.
As shown in the table 1, the corrosion potential of the magnesium alloy is-1.50V, the corrosion potential of the super-hydrophobic film layer is-0.41V, and the corrosion resistance of the super-hydrophobic film layer is remarkably improved.
TABLE 1
The static contact angle of the surface prepared by the example is about 157.8 +/-1 degrees, and the film has higher stability and durability under the room temperature condition.
Example 2
This example was similar to example 1 except that the blasting pressure was 0.30MPa, the blasting distance was 120cm, and the blasting time was 3min in step S2.
The corrosion potential, the corrosion current density and the surface static contact angle of the super-hydrophobic membrane layer of the corrosion-resistant super-hydrophobic membrane layer prepared in the example are similar to those of the super-hydrophobic membrane layer prepared in the example 1.
Example 3
This example was similar to example 1 except that the blasting pressure was 0.10MPa, the blasting distance was 80cm, and the blasting time was 1min in step S2.
The corrosion potential, the corrosion current density and the surface static contact angle of the super-hydrophobic membrane layer of the corrosion-resistant super-hydrophobic membrane layer prepared in the example are similar to those of the super-hydrophobic membrane layer prepared in the example 1.
Example 4
The process of this example is similar to example 1, except that the pickling solution in step S2 includes: 100g/L CrO3，110ml/L HNO3(ii) a At room temperatureConfiguring; the acid washing time was 30 s.
The corrosion potential, the corrosion current density and the surface static contact angle of the super-hydrophobic membrane layer of the corrosion-resistant super-hydrophobic membrane layer prepared in the example are similar to those of the super-hydrophobic membrane layer prepared in the example 1.
Example 5
The process of this example is similar to example 1, except that the pickling solution in step S2 includes: 140g/L CrO3，90ml/L HNO3(ii) a Preparing at room temperature; the acid washing time was 40 s.
The corrosion potential, the corrosion current density and the surface static contact angle of the super-hydrophobic membrane layer of the corrosion-resistant super-hydrophobic membrane layer prepared in the example are similar to those of the super-hydrophobic membrane layer prepared in the example 1.
Example 6
The process of this example is similar to example 1, except that the electroless nickel plating solution in step S3 consists of: 16g/L NiSO4·6H2O；10g/L CH3COONa；14g/L NaH2PO2·H2O；10g/L NH4HF2；14mL/L HF；18mL/L NH3·H2O, the PH value is 6; the preparation is carried out at 76 ℃.
The corrosion potential, the corrosion current density and the surface static contact angle of the super-hydrophobic membrane layer of the corrosion-resistant super-hydrophobic membrane layer prepared in the example are similar to those of the super-hydrophobic membrane layer prepared in the example 1.
Example 7
The process of this example is similar to example 1, except that the electroless nickel plating solution in step S3 consists of: 20g/L NiSO4·6H2O；18g/L CH3COONa；18g/L NaH2PO2·H2O；10g/L NH4HF2；10mL/L HF；10mL/L NH3·H2O, the PH value is 7; the preparation is carried out at 86 ℃.
The corrosion potential, the corrosion current density and the surface static contact angle of the super-hydrophobic membrane layer of the corrosion-resistant super-hydrophobic membrane layer prepared in the example are similar to those of the super-hydrophobic membrane layer prepared in the example 1.
Example 8
The method of this example is similar to that of example 1, except that the electroless nickel plating solution in step S4 is composed of: 1.2mol/L NiCl2·6H2O、0.6mol/L H3BO3And 2.0mol/L EDA.2HCl (EDA, ethylenediamine); the temperature was 66 ℃ and the pH of the solution was 5.0.
The corrosion potential, the corrosion current density and the surface static contact angle of the super-hydrophobic membrane layer of the corrosion-resistant super-hydrophobic membrane layer prepared in the example are similar to those of the super-hydrophobic membrane layer prepared in the example 1.
Example 9
The method of this example is similar to that of example 1, except that the electroless nickel plating solution in step S4 is composed of: 1.8mol/L NiCl2·6H2O、1.2mol/L H3BO3And 1.4mol/L EDA.2HCl (EDA, ethylenediamine); the temperature was 50 ℃ and the pH of the solution was 3.6.
The corrosion potential, the corrosion current density and the surface static contact angle of the super-hydrophobic membrane layer of the corrosion-resistant super-hydrophobic membrane layer prepared in the example are similar to those of the super-hydrophobic membrane layer prepared in the example 1.
Example 10
This example was similar to example 1 except that the current density applied by the DC power supply in step S4 was about 15mA/cm2The constant current power supply lasts for 8 minutes.
The corrosion potential, the corrosion current density and the surface static contact angle of the super-hydrophobic membrane layer of the corrosion-resistant super-hydrophobic membrane layer prepared in the example are similar to those of the super-hydrophobic membrane layer prepared in the example 1.
Example 11
This example was similar to example 1 except that the current density applied by the DC power supply in step S4 was about 20mA/cm2The constant current power supply is used for 4 minutes.
The corrosion potential, the corrosion current density and the surface static contact angle of the super-hydrophobic membrane layer of the corrosion-resistant super-hydrophobic membrane layer prepared in the example are similar to those of the super-hydrophobic membrane layer prepared in the example 1.
Example 12
This example was similar to example 1 except that an ethanol solution containing stearic acid was used in step S5: the concentration is 0.0135mol/L, and the soaking time is 40 min.
The corrosion potential, the corrosion current density and the surface static contact angle of the super-hydrophobic membrane layer of the corrosion-resistant super-hydrophobic membrane layer prepared in the example are similar to those of the super-hydrophobic membrane layer prepared in the example 1.
The corrosion potential, the corrosion current density and the surface static contact angle of the super-hydrophobic membrane layer of the corrosion-resistant super-hydrophobic membrane layer prepared in the example are similar to those of the super-hydrophobic membrane layer prepared in the example 1.
Example 13
This example was similar to example 1 except that an ethanol solution containing stearic acid was used in step S5: the concentration is 0.02mol/L, and the soaking time is 30 min.
The corrosion potential, the corrosion current density and the surface static contact angle of the super-hydrophobic membrane layer of the corrosion-resistant super-hydrophobic membrane layer prepared in the example are similar to those of the super-hydrophobic membrane layer prepared in the example 1.
The above description is only a preferred example of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like of the present invention shall be included in the protection scope of the present invention.
Claims (10)
1. A method for plating a corrosion-resistant super-hydrophobic film layer on the surface of a magnesium alloy is characterized by comprising the following steps:
s1, cleaning the pre-ground magnesium alloy sample;
s2, after sand blasting and acid washing are carried out on the magnesium alloy sample, the surface of the magnesium alloy substrate is roughened, and more nucleation sites are obtained;
s3, plating a nickel layer with a certain thickness on the rough surface of the magnesium alloy sample after treatment by chemical plating, so that the surface of the magnesium alloy sample obtains a cellular structure;
s4, placing the chemical plating sample in an electrochemical nickel plating solution, wherein the chemical plating sample is used as a cathode, a nickel plate is used as an anode, and performing electrochemical nickel plating treatment to form a uniform micro/nano-scale cauliflower-like structure on the surface of the chemical plating sample;
and S5, immersing the electroplating sample into an ethanol solution containing stearic acid at room temperature, and chemically modifying the surface of the nickel by using an immersion and extraction method to form the corrosion-resistant super-hydrophobic film layer on the surface of the magnesium alloy sample.
2. The method for plating the corrosion-resistant ultra-hydrophobic film layer on the surface of the magnesium alloy as claimed in claim 1, wherein the step S1 is performed by washing with deionized water and ethanol in an ultrasonic washing apparatus.
3. The method for plating the corrosion-resistant super-hydrophobic film layer on the surface of the magnesium alloy as claimed in claim 1, wherein step S2 is to perform sand blasting on the surface of the sample by using a sand blasting machine, wherein the sand blasting machine is 280-mesh white corundum sand, the sand blasting pressure is 0.10-0.30MPa, the sand blasting distance is 80-120cm, and the sand blasting time is 1-3 min.
4. The method for plating the corrosion-resistant super-hydrophobic film layer on the surface of the magnesium alloy as claimed in claim 1, wherein the pickling solution in the step S2 comprises: 100-140g/L CrO3，90-110ml/L HNO3。
5. The method for plating the corrosion-resistant super-hydrophobic film layer on the surface of the magnesium alloy as claimed in claim 1, wherein the pickling time in step S2 is 30-40S, and the magnesium alloy is washed with deionized water after pickling.
6. The method for plating the corrosion-resistant super-hydrophobic film layer on the surface of the magnesium alloy as claimed in claim 1, wherein the electroless nickel plating solution in step S3 comprises 16-20g/L NiSO4·6H2O、10-18g/L CH3COONa、14-18g/L NaH2PO2·H2O、10g/L NH4HF210-14mL/L HF and 10-18mL/L NH3H2O; the pH value of the solution is 6-7; the solution is prepared at 76-86 ℃.
7. The method for plating the corrosion-resistant super-hydrophobic film layer on the surface of the magnesium alloy as claimed in claim 1, wherein the electroless nickel plating in step S3 is performed at 86-76 ℃ for 30-40 minutes.
8. The method of claim 1 for plating corrosion-resistant ultra-phobic surfaces on magnesium alloysThe method of the water film layer is characterized in that the electrochemical nickel plating solution in the step S4 comprises 1.2 to 1.8mol/L NiCl2·6H2O、0.6-1.2mol/L H3BO3And 1.4-2.0mol/L EDA.2HCl, the preparation temperature of the solution is 50-66 ℃, and the pH value of the solution is 3.6-5.0.
9. The method for plating the corrosion-resistant super-hydrophobic film layer on the surface of the magnesium alloy as claimed in claim 1, wherein the step S4 is to apply a current density of about 15-20mA/cm by a DC power supply during the electrodeposition process2The constant current power supply is used for 4-8 minutes.
10. The method for plating the corrosion-resistant super-hydrophobic film layer on the surface of the magnesium alloy according to claim 1, wherein the concentration of the ethanol solution containing stearic acid in the step S5 is 0.0135-0.02mol/L, and the soaking time is 30-40 min.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995017A (en) * | 2012-11-01 | 2013-03-27 | 西南大学 | Method for preparing super-hydrophobic plated layer on surface of magnesium alloy |
| CN104005026A (en) * | 2014-05-20 | 2014-08-27 | 华南理工大学 | Method for preparing corrosion-resistant super-hydrophobic membrane layer on surface of magnesium alloy |
| CN104250813A (en) * | 2014-01-02 | 2014-12-31 | 吉林大学 | Method for preparing super-hydrophobic self-cleaned corrosion-resisting surface of magnesium alloy |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995017A (en) * | 2012-11-01 | 2013-03-27 | 西南大学 | Method for preparing super-hydrophobic plated layer on surface of magnesium alloy |
| CN104250813A (en) * | 2014-01-02 | 2014-12-31 | 吉林大学 | Method for preparing super-hydrophobic self-cleaned corrosion-resisting surface of magnesium alloy |
| CN104005026A (en) * | 2014-05-20 | 2014-08-27 | 华南理工大学 | Method for preparing corrosion-resistant super-hydrophobic membrane layer on surface of magnesium alloy |
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