CN113899688A - Working electrode for metal corrosion test and preparation method and test method thereof - Google Patents
Working electrode for metal corrosion test and preparation method and test method thereof Download PDFInfo
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- CN113899688A CN113899688A CN202111253745.5A CN202111253745A CN113899688A CN 113899688 A CN113899688 A CN 113899688A CN 202111253745 A CN202111253745 A CN 202111253745A CN 113899688 A CN113899688 A CN 113899688A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/02—Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/04—Corrosion probes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
Abstract
The invention provides a working electrode for metal corrosion test and a preparation method and a test method thereof, wherein the preparation method comprises the following steps: connecting a working electrode lead on the non-corrosion surface of a sample to be subjected to a metal corrosion test; and coating an acrylic resin adhesive on the non-corrosion surface of the sample, and completely wrapping the conductive metal exposed part of the working electrode lead by the acrylic resin adhesive to solidify the acrylic resin adhesive. The preparation method of the working electrode for the metal corrosion test can be suitable for preparing the working electrode for the metal corrosion test of a sample with a corrosion surface on the surface, which is taken from an actual production field, and the preparation process can not influence the corrosion state of the corrosion surface of the metal sample and can not cause the problem of crevice corrosion, thereby realizing convenient and rapid encapsulation of the metal sample which is collected on the field and has corrosion, and having no strict requirements on the size and the shape of the metal sample.
Description
Technical Field
The invention relates to the technical field of metal corrosion tests, in particular to a working electrode for a metal corrosion test and a preparation method and a test method thereof.
Background
In a laboratory experiment for simulating metal corrosion in an atmospheric environment, a three-electrode system and an electrochemical workstation are often used for measuring parameters such as a polarization curve and an electrochemical impedance spectrum of a sample to be subjected to a corrosion experiment. In electrochemical testing, in order to avoid affecting the measurement result, the working electrode is generally required to expose only the corrosion surface concerned by the sample to be tested, the area of the corrosion surface is known, and other surfaces are required to be sealed in a plastic way to avoid contacting with the solution in the electrolytic cell.
The traditional working electrode is characterized in that before a corrosion experiment, an epoxy resin is used for integrally packaging a sample to be tested, then a plane with a specific area exposed is cut to serve as a corrosion surface, and metallographic abrasive paper is used for polishing for later use. However, if the sample is taken from an actual production site and the surface is corroded, in order to characterize the corrosion, the sample is prepared into a working electrode and the exposed corrosion area is calculated to perform electrochemical measurement. In this case, if the plastic packaging is still performed by the conventional method, it is difficult to ensure that the corrosion state of the sample surface is not damaged.
At present, a conventional solution to this situation is to use a sample support in which a sample to be measured is placed. Although this approach seems to solve the problem of difficulty in plastic encapsulation using epoxy resin, it introduces two additional problems: first, the sample supports on the market today have strict requirements on the shape and size of the sample to be measured, generally being cylindrical with a diameter not exceeding 15mm and a height within 3 mm. However, in general, a metal corrosion layer is loose and easy to fall off, and when the metal corrosion layer is cut to have such a size, the corrosion surface is inevitably damaged, such as the falling off of the corrosion layer; secondly, the sample support is sealed by rubber gaskets, which inevitably causes crevice corrosion and also affects the measurement result.
Therefore, it is desirable to provide a method for preparing a working electrode for metal corrosion testing, which is suitable for a metal sample collected on site and subjected to corrosion, and does not damage the corrosion surface of the sample and generate crevice corrosion.
Disclosure of Invention
Therefore, it is necessary to provide a working electrode for metal corrosion test, a preparation method thereof and a test method thereof, aiming at the problems that the traditional preparation method is not suitable for samples which are collected on site and have corrosion, the preparation process is easy to damage the corrosion surface of the samples and the crevice corrosion is easy to generate.
According to one aspect of the present invention, there is provided a method for preparing a working electrode for metal corrosion testing, comprising the steps of:
connecting a working electrode lead on the non-corrosion surface of a sample to be subjected to a metal corrosion test;
and coating an acrylic resin adhesive on the non-corrosion surface of the sample, and completely wrapping the conductive metal exposed part of the working electrode lead by the acrylic resin adhesive so as to cure the acrylic resin adhesive.
In some of these embodiments, the coating comprises the steps of:
dividing the non-corrosion surface of the sample into a plurality of areas, coating an acrylic resin adhesive on one area, completely curing the acrylic resin adhesive, and then coating the next area, wherein the acrylic resin adhesive between the adjacent areas is ensured to be bonded, transited and seamless.
In some embodiments, if the corrosion layer of the corrosion surface of the sample is partially peeled off, the position where the corrosion surface of the corrosion layer is peeled off is coated and filled by using an acrylic resin adhesive.
In some of the embodiments, the acrylic adhesive is an ultraviolet light curing type acrylic adhesive.
In some of these embodiments, the curing conditions are: the sample coated with the acrylic resin adhesive is irradiated under ultraviolet light for more than 10 seconds.
In some of these embodiments, prior to attaching the working electrode lead to the non-corroding side of the sample to be tested for metal corrosion, the method of making further comprises:
and polishing the non-corrosion surface of the sample to remove the oxide layer to form a connecting area for connecting the working electrode lead.
In some of these embodiments, before polishing the non-etched side of the sample to remove the oxide layer, the method further comprises:
and cutting the sample into small blocks with the area meeting the area required by electrochemical measurement on the premise of ensuring that the corrosion layer of the sample is not damaged.
In some of these embodiments, the sample is one that has had a corrosion face prior to preparation of the metal corrosion test working electrode.
According to another aspect of the present invention, there is provided a working electrode for metal corrosion testing, which is prepared by the above-mentioned preparation method of the present invention.
According to another aspect of the present invention, there is provided a metal corrosion testing method, using the working electrode for metal corrosion testing of the present invention, the metal corrosion testing method including the steps of:
measuring the area of the corrosion surface of the working electrode for the metal corrosion test;
and forming a three-electrode system by the working electrode for the metal corrosion test, the counter electrode and the reference electrode, and testing the corrosion condition of the corrosion surface of the working electrode for the metal corrosion test in an electrochemical workstation.
Compared with the prior art, the invention has the following beneficial effects:
the preparation method of the working electrode for the metal corrosion test comprises the steps of connecting a working electrode lead on a non-corrosion surface of a sample with a corrosion surface, coating the non-corrosion surface of the sample with an acrylic resin adhesive, enabling the acrylic resin adhesive to completely wrap the exposed part of the working electrode lead, and forming the working electrode for the metal corrosion test after the acrylic resin adhesive is cured. The acrylic resin adhesive has high curing speed, and the adhesive coated on the non-corrosion surface of the sample can be cured quickly without influencing the corrosion surface of the sample; moreover, the acrylic resin adhesive has excellent adhesive property to metal samples, and the measurement result is not influenced by crevice corrosion. Compared with the traditional method for integrally plastically packaging the sample by adopting the epoxy resin, the method has the advantages that the corrosion surface of the sample is not damaged; compared with the existing method adopting the sample support body, the method does not need to strictly cut the sample into a specified shape and size, does not damage a sample corrosion layer, and does not cause the problem of crevice corrosion. The preparation method can conveniently and quickly encapsulate the sample which is collected on site and corroded, and has no special requirements on the size and the shape of the sample.
Drawings
FIG. 1 is a photograph of the back side of a working electrode for metal corrosion testing according to the present invention.
FIG. 2 is a side photograph of a working electrode for a metal corrosion test according to the present invention.
FIG. 3 is a photograph of the measurement of the exposed area of the etched surface of the working electrode using imageJ software in accordance with the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings, which illustrate embodiments of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by existing methods.
In one embodiment of the present invention, a method for manufacturing a working electrode for a metal corrosion test is provided, the method including steps S10 to S20.
Step S10: and connecting a working electrode lead on the non-corrosion surface of the sample to be subjected to the metal corrosion test.
Step S20: and coating an acrylic resin adhesive on the non-corrosion surface of the sample, completely wrapping the conductive metal exposed part of the working electrode lead by the acrylic resin adhesive, and curing the acrylic resin adhesive to form the working electrode for the metal corrosion test.
The traditional preparation method of the working electrode for the metal corrosion test is that epoxy resin is adopted to carry out integral encapsulation on a metal sample to be tested, then a part of the epoxy resin encapsulation layer on the surface of the sample is cut off, and a plane with a certain area is exposed to serve as a corrosion surface. However, this method is not suitable for metal samples which have been taken from the actual production site and whose surface has a corroded surface. Because the traditional method is difficult to ensure that the corrosion state of the surface of the sample is not damaged in the process of plastic packaging the sample.
The preparation method comprises the steps of firstly connecting a working electrode lead to the non-corrosion surface of a sample, coating the non-corrosion surface of the sample by using an acrylic resin adhesive, and completely wrapping the exposed part of the working electrode lead by using the acrylic resin adhesive to prepare the working electrode. The acrylic resin adhesive has high curing speed, can be cured in a short time after the adhesive is coated on the non-corrosion surface of the sample, does not need to adopt an integral plastic package mode, and cannot influence the corrosion surface of the sample. The preparation method can be suitable for preparing the working electrode for the metal corrosion test of a sample with a corroded surface on the surface, which is taken from an actual production field.
In the conventional method for preparing the working electrode using the sample support, the sample needs to be strictly cut into a prescribed shape and size, a situation of damaging the corroded surface such as peeling of the corrosion layer inevitably occurs during cutting, and the sample support needs to adopt a rubber gasket to ensure the sealing effect, which inevitably causes a problem of crevice corrosion and adversely affects the measurement result.
In the preparation method, the non-corrosion surface of the sample is coated with the acrylic resin adhesive, so that the resin adhesive is quickly cured, and the working electrode is prepared in a mode of forming plastic package on the non-corrosion surface of the sample and the exposed part of the lead; the sample does not need to be strictly cut into the shape and the size matched with the supporting body, so that the condition that the corrosion surface is damaged by falling off of a corrosion layer and the like in the cutting process can be avoided; and the acrylic resin adhesive and the metal sample have excellent adhesive property, and the problem of crevice corrosion can not occur.
The preparation method provided by the invention is simple in process, can conveniently and quickly encapsulate the metal sample which is collected on site and has been corroded, and has no strict requirements on the size and shape of the sample. The preparation method is also applicable to metal samples without corrosion surfaces formed in advance.
It is understood that the non-etched side of the sample refers to the portion of the sample surface other than the etched side. The sample can be a metal sample made of various materials such as steel, iron, copper, aluminum and the like. The acrylic resin adhesive is coated on the non-corrosion surface of the sample and completely wraps the exposed part of the working electrode lead; that is, except for the corroded surface of the sample, the other surfaces of the sample and the exposed part of the working electrode lead are subjected to encapsulation treatment. Thereby ensuring that when the working electrode is immersed in the electrolyte of the chemical workstation, the conductive parts other than the etched surface are not in direct contact with the electrolyte.
It should be noted that the surface of the sample to be tested should not be a totally corroded surface, but should have at least a portion of a non-corroded surface, and the area of the non-corroded surface should be at least large enough to allow connection of the working electrode lead to the non-corroded surface of the sample. Otherwise, the corrosion state of the sample will be inevitably destroyed when the working electrode for metal corrosion test is prepared.
In one specific example, the non-corrosive side of the sample is coated with an acrylic adhesive, which specifically comprises the following steps:
dividing the non-corrosion surface of a sample into a plurality of areas, coating an acrylic resin adhesive on one area, and coating the next area after the acrylic resin adhesive in the area is completely cured; this was repeated until the coating and encapsulation of all areas on the non-etched side of the sample was completed. In the coating process of each area, the acrylic resin adhesive bonding transition between adjacent areas is required to be ensured to be uniform and seamless.
By adopting the method for dividing the non-corrosion surface of the sample into a plurality of small areas, coating the acrylic resin adhesive in the small areas and coating and encapsulating the non-corrosion surface of the sample in the small areas, the acrylic resin adhesive in the small areas can be immediately cured after the small areas are coated, compared with the method for curing the non-corrosion surface of the sample after the whole coating, the method for coating and curing in the small areas can better avoid the influence of the resin adhesive on the non-corrosion surface on the corrosion surface, and further improve the accuracy of the encapsulation and test result of the non-corrosion surface of the sample.
It can be understood that in the above coating step for each region, the acrylic resin adhesive between adjacent regions is ensured to be uniformly and transitionally bonded and seamless, that is, the encapsulation layers of a plurality of regions in the non-corrosion surface of the encapsulated sample are integrally formed, so that the influence of the existence of gaps between adjacent regions on the accuracy of the corrosion test result is avoided.
In actual production, the corrosion layer on the corrosion side of the sample may be partially peeled off in some special cases. In some embodiments of the invention, if the corrosion layer of the corrosion surface of the processed sample is partially peeled off, the corrosion surface from which the corrosion layer is peeled off is also coated and filled by using an acrylic resin adhesive; and after the acrylic resin adhesive is cured, forming a packaging area at the corrosion surface with the corrosion layer peeled off. Thus, the accuracy of the test result can be further improved.
In one specific example, the acrylic resin adhesive is an ultraviolet-curable acrylic resin adhesive. The ultraviolet light curing type acrylic resin adhesive has shorter curing time and convenient curing operation, and only needs to be irradiated under ultraviolet light for a short time. The curing time of the adhesive is short, the adhesive coated on the non-corrosion surface of the sample can be quickly cured and encapsulated, the adhesive is prevented from flowing to the corrosion surface of the sample to influence the accuracy of a test result, and the production efficiency can be improved due to the short curing time.
Furthermore, the acrylic resin adhesive is preferably a thick acrylic resin adhesive with high viscosity and low fluidity, so that the problem that the accuracy of the test result is influenced by the fact that the adhesive flows to the corroded surface of the sample can be better avoided.
The acrylic resin adhesive of the ultraviolet-curable type may be any one of those available on the market. Other types of acrylic adhesives may also be used in the present invention, provided that the acrylic adhesive applied to the non-etched side of the sample does not flow onto the etched side of the sample until curing is complete. The coating thickness of the acrylic resin adhesive is ensured, and the non-corrosion surface of the sample can be well isolated from the solution in the electrolytic cell when the working electrode is tested by the packaging layer on the non-corrosion surface of the sample after the adhesive is cured, so that the test accuracy is prevented from being influenced by the contact between the non-corrosion surface of the sample and the solution.
In one specific example, after applying the acrylic adhesive on the non-etched surface of the sample, the concrete operations of curing are as follows: and irradiating the sample coated with the acrylic resin adhesive for more than 10 seconds under ultraviolet light, so that the acrylic resin adhesive on the non-corrosion surface of the sample is completely cured to form the packaging layer. Within the above irradiation time range, the specific irradiation time of the ultraviolet light can be determined according to the actual production conditions, subject to the fact that the acrylic resin adhesive can be completely cured.
The surface of a metal sample retrieved from the field often forms an oxide layer, and the presence of the oxide layer on the surface of the sample can easily adversely affect the conductivity between the sample and the working electrode lead, thereby affecting the normal use of the metal corrosion test working electrode. In view of this situation, in some embodiments of the present invention, before the non-corroded surface of the sample is connected to the working electrode lead, the sample is polished on the non-corroded surface to remove the oxide layer on the surface of the sample, so as to form a connection region for connecting the working electrode lead on the non-corroded surface of the sample.
By adopting the method, the working electrode lead can be connected in the connecting area which is polished to remove the surface oxide layer, thereby ensuring that the metal sample and the working electrode lead have good conductivity and improving the reliability and the stability of the working electrode for metal corrosion test.
It will be appreciated that the non-etched surface of the sample may be sanded with metallographic abrasive paper, scraped with a spatula or the like. The area size of the sample surface connecting area can be determined according to the size of a connecting point of the working electrode lead and the non-corrosion surface of the sample, and only needs to be slightly larger than the size of the connecting point.
It can be understood that "connecting the working electrode wire to the connection region polished to remove the surface oxide layer" in the present invention may be specifically performed by welding, that is, peeling off an outer coating layer at one end of the working electrode wire, and then welding the exposed metal wire to the connection region polished to remove the surface oxide layer. Other existing connection means may also be used, for example: a conductive screw can be screwed into the sample, and then the metal wire exposed out of the working electrode lead is wound on the conductive screw; the exposed wire of the working electrode lead may also be directly bonded to the attachment area of the sample by a conductive adhesive or tape. The invention preferably adopts a welding connection mode, and has simple operation and firm connection.
In some cases, the size of the metal sample to be fabricated into the working electrode retrieved from the field may be relatively large and may not satisfy the sample area required for the electrochemical workstation measurements. In response to this, in some embodiments of the invention, the metal specimen is also subjected to a cutting process prior to attaching the working electrode wire to the non-corroding side of the specimen to be subjected to the metal corrosion test. The method specifically comprises the following steps: on the premise of ensuring that the corrosion layer of the metal sample is not damaged, the sample is cut into small blocks with the area required by electrochemical measurement.
This cutting operation is different from the operation of cutting the sample in the conventional method of preparing the working electrode using the sample support. In the method of preparing the working electrode using the sample support, the metal sample needs to be strictly cut into a shape and a size matching the support, and in this process, it is difficult to ensure that the corrosion surface of the metal sample is not damaged; in the cutting operation, a metal sample with a larger size is only required to be cut into the size of the sample required by measurement of the electrochemical workstation, the shape and the specific size of the cut sample are not strictly required, the cutting operation can be completed by simple cutting, and the damage to the corrosion surface of the metal sample can be completely avoided in the cutting process.
The preparation method of the working electrode for the metal corrosion test is suitable for preparing working electrodes for corrosion tests of various metal samples, and is particularly suitable for samples (such as metal samples taken from actual production sites) which are provided with corrosion surfaces before the working electrodes for the metal corrosion test are prepared. The preparation method realizes convenient and rapid encapsulation of the metal sample which is collected on site and corroded, has no strict requirements on the size and the shape of the sample, and does not influence the corrosion state of the corrosion surface of the metal sample in the preparation process or cause the problem of crevice corrosion.
In another embodiment of the present invention, a working electrode for metal corrosion testing is provided, which is prepared by the preparation method of the working electrode for metal corrosion testing of the present invention. The working electrode for the metal corrosion test can accurately measure the corrosion condition of a metal sample.
Specifically, the working electrode for the metal corrosion test comprises a metal sample, wherein the surface of the sample is provided with a corroded surface and a non-corroded surface, the non-corroded surface of the sample is connected with a working electrode lead, and an encapsulation layer formed by an acrylic resin adhesive is plastically encapsulated on the non-corroded surface of the sample and the exposed part of the working electrode lead. Photographs of the working electrode for the metal corrosion test are shown in fig. 1, 2 and 3.
In another embodiment of the present invention, a metal corrosion testing method is further provided, in which the metal corrosion condition of a sample is tested by using the working electrode for metal corrosion testing of the present invention, the metal corrosion testing method specifically includes the following steps:
firstly, measuring the area of the corrosion surface of a working electrode for metal corrosion test to obtain the area data of the corrosion surface of the working electrode;
and then, forming a three-electrode system by the working electrode for the metal corrosion test, the counter electrode and the reference electrode, and testing the corrosion condition of the corrosion surface of the working electrode for the metal corrosion test in an electrochemical workstation.
Specifically, the area of the etched surface may be measured using imageJ software, or the area of the etched surface of the working electrode may be measured by other conventional methods. The photograph of the etched surface area measured using imageJ software is shown in figure 3. In FIG. 3, the Results of the interpolated graphs are the Results of measuring the Area of the etched surface using imageJ software, and the Area data in the interpolated graphs indicate the Area size of the etched surface. The working electrode for the metal corrosion test, the counter electrode and the reference electrode form a three-electrode system, so that the corrosion condition of the corrosion surface of the working electrode for the metal corrosion test can be tested in an electrochemical workstation, and test parameters such as a polarization curve and an electrochemical impedance spectrum of a metal sample can be obtained.
Specifically, the counter electrode in the three-electrode system is also called an auxiliary electrode, and an existing electrode such as a platinum electrode can be used; the reference electrode may also be an existing electrode such as a saturated calomel electrode.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A preparation method of a working electrode for metal corrosion testing is characterized by comprising the following steps:
connecting a working electrode lead on the non-corrosion surface of a sample to be subjected to a metal corrosion test;
and coating an acrylic resin adhesive on the non-corrosion surface of the sample, and completely wrapping the conductive metal exposed part of the working electrode lead by the acrylic resin adhesive so as to cure the acrylic resin adhesive.
2. The method of claim 1, wherein the coating comprises the steps of:
dividing the non-corrosion surface of the sample into a plurality of areas, coating an acrylic resin adhesive on one area, completely curing the acrylic resin adhesive, and then coating the next area, wherein the acrylic resin adhesive between the adjacent areas is ensured to be bonded, transited and seamless.
3. The method of manufacturing a working electrode for metal corrosion testing according to claim 1, wherein if the corrosion layer of the corrosion surface of the sample is partially peeled, the peeled portion of the corrosion surface of the corrosion layer is coated and filled with an acrylic resin adhesive.
4. The method of claim 1, wherein the acrylic resin adhesive is an ultraviolet-curable acrylic resin adhesive.
5. The method of preparing a working electrode for metal corrosion testing according to claim 4, wherein the curing conditions are: irradiating under ultraviolet light for more than 10 s.
6. The method of manufacturing a working electrode for metal corrosion testing according to any one of claims 1 to 5, wherein before connecting a working electrode lead to a non-corrosion surface of a sample to be subjected to metal corrosion testing, the method further comprises:
and polishing the non-corrosion surface of the sample to remove the oxide layer to form a connecting area for connecting the working electrode lead.
7. The method of making a working electrode for metal corrosion testing according to claim 6, wherein prior to polishing the non-corroded surface of the sample to remove the oxide layer, the method further comprises:
and cutting the sample into small blocks with the area meeting the area required by electrochemical measurement on the premise of ensuring that the corrosion layer of the sample is not damaged.
8. The method of manufacturing a working electrode for metal corrosion testing according to any one of claims 1 to 5, wherein the sample is a sample having a corroded surface before the working electrode for metal corrosion testing is manufactured.
9. A working electrode for metal corrosion testing, which is prepared by the preparation method of any one of claims 1 to 8.
10. A metal corrosion test method using the working electrode for metal corrosion test according to claim 9, comprising the steps of:
measuring the area of the corrosion surface of the working electrode for the metal corrosion test;
and forming a three-electrode system by the working electrode for the metal corrosion test, the counter electrode and the reference electrode, and testing the corrosion condition of the corrosion surface of the working electrode for the metal corrosion test in an electrochemical workstation.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4781988A (en) * | 1986-09-29 | 1988-11-01 | Owens-Corning Fiberglas Corporation | Corrosion-resistant coating |
| JPH0545324A (en) * | 1991-01-25 | 1993-02-23 | Suzuki Motor Corp | Sample electrode for measuring corrosion potential and manufacture thereof |
| US5859537A (en) * | 1996-10-03 | 1999-01-12 | Dacco Sci, Inc. | Electrochemical sensors for evaluating corrosion and adhesion on painted metal structures |
| US6075072A (en) * | 1998-03-13 | 2000-06-13 | 3M Innovative Properties Company | Latent coating for metal surface repair |
| US6132593A (en) * | 1998-06-08 | 2000-10-17 | Tan; Yong-Jun | Method and apparatus for measuring localized corrosion and other heterogeneous electrochemical processes |
| JP2015185404A (en) * | 2014-03-25 | 2015-10-22 | 株式会社オートネットワーク技術研究所 | Electric wire with terminal, and gluing agent used for the same |
| KR20170101447A (en) * | 2016-02-29 | 2017-09-06 | 조선대학교산학협력단 | The working electrode for electric and chemical test, And Manufacturing method the same |
| CN107505256A (en) * | 2017-09-13 | 2017-12-22 | 大连理工大学 | Weld corrosion monitoring device and its monitoring method under stress can be simulated |
| CN110296932A (en) * | 2019-07-25 | 2019-10-01 | 佛山科学技术学院 | A kind of electro-chemical test sample and preparation method thereof |
| CN110333275A (en) * | 2019-06-28 | 2019-10-15 | 国网江西省电力有限公司电力科学研究院 | Corrosion monitoring electrode and preparation and detection method in a kind of conducting concrete environment |
| CN110658128A (en) * | 2019-09-29 | 2020-01-07 | 南通中国科学院海洋研究所海洋科学与技术研究发展中心 | Method for evaluating protective performance of anticorrosion coating material |
| CN110887782A (en) * | 2019-12-04 | 2020-03-17 | 西安科技大学 | Working electrode for corrosion detection and preparation method thereof |
-
2021
- 2021-10-27 CN CN202111253745.5A patent/CN113899688A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4781988A (en) * | 1986-09-29 | 1988-11-01 | Owens-Corning Fiberglas Corporation | Corrosion-resistant coating |
| JPH0545324A (en) * | 1991-01-25 | 1993-02-23 | Suzuki Motor Corp | Sample electrode for measuring corrosion potential and manufacture thereof |
| US5859537A (en) * | 1996-10-03 | 1999-01-12 | Dacco Sci, Inc. | Electrochemical sensors for evaluating corrosion and adhesion on painted metal structures |
| US6075072A (en) * | 1998-03-13 | 2000-06-13 | 3M Innovative Properties Company | Latent coating for metal surface repair |
| US6132593A (en) * | 1998-06-08 | 2000-10-17 | Tan; Yong-Jun | Method and apparatus for measuring localized corrosion and other heterogeneous electrochemical processes |
| JP2015185404A (en) * | 2014-03-25 | 2015-10-22 | 株式会社オートネットワーク技術研究所 | Electric wire with terminal, and gluing agent used for the same |
| KR20170101447A (en) * | 2016-02-29 | 2017-09-06 | 조선대학교산학협력단 | The working electrode for electric and chemical test, And Manufacturing method the same |
| CN107505256A (en) * | 2017-09-13 | 2017-12-22 | 大连理工大学 | Weld corrosion monitoring device and its monitoring method under stress can be simulated |
| CN110333275A (en) * | 2019-06-28 | 2019-10-15 | 国网江西省电力有限公司电力科学研究院 | Corrosion monitoring electrode and preparation and detection method in a kind of conducting concrete environment |
| CN110296932A (en) * | 2019-07-25 | 2019-10-01 | 佛山科学技术学院 | A kind of electro-chemical test sample and preparation method thereof |
| CN110658128A (en) * | 2019-09-29 | 2020-01-07 | 南通中国科学院海洋研究所海洋科学与技术研究发展中心 | Method for evaluating protective performance of anticorrosion coating material |
| CN110887782A (en) * | 2019-12-04 | 2020-03-17 | 西安科技大学 | Working electrode for corrosion detection and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 万凯;李昌诚;赵海洲;于良民;: "带环氧基丙烯酸树脂改性环氧树脂防腐涂料的性能", 合成树脂及塑料, no. 06 * |
| 李劲风, 张昭, 程英亮, 曹发和, 张鉴清, 曹楚南: "时效状态对Al-Cu-Li-Mg-Ag-Zr合金在3.0%NaCl溶液中局部腐蚀的影响", 中国有色金属学报, no. 05 * |
| 李玉荣;林万明;卫英慧;侯利锋;杜华云;: "表面机械研磨处理Cu-10Ni合金腐蚀性能的研究", 腐蚀科学与防护技术, no. 05 * |
| 董蔓;朱晓云;: "导电防腐环氧涂料的制备", 电镀与涂饰, no. 09 * |
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