Method for characterizing surface micro-corrosion characteristics of low carbon steel coated with enamel layer by using wire beam electrode

A tow electrode, low carbon steel technology, used in metal corrosion detection and evaluation, high-throughput detection of the impact of metal corrosion resistance, low carbon steel in the field of corrosion detection and evaluation, can solve the problem of tow electrode characterization of metal alloys Corrosion-resistant nano-enamel coating surface micro-corrosion characteristics and other issues, to achieve the effect of easy continuous monitoring, accurate acquisition, and high degree of automation

Active Publication Date: 2018-11-16
SHANGHAI UNIV
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are still few studies on corrosion-resistant enamel coatings, especially metal alloy corrosion-resistant nano-enamel coatings, and there is no lit

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for characterizing surface micro-corrosion characteristics of low carbon steel coated with enamel layer by using wire beam electrode
  • Method for characterizing surface micro-corrosion characteristics of low carbon steel coated with enamel layer by using wire beam electrode
  • Method for characterizing surface micro-corrosion characteristics of low carbon steel coated with enamel layer by using wire beam electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In this embodiment, a method for characterizing micro-area corrosion characteristics of a low-carbon steel surface coated with an enamel layer by using a wire beam electrode comprises the following steps:

[0023] a. Preparation of enamel sample: prepare enamel powder with a set composition formula to obtain nano-sized enamel powder with a particle size diameter of 10-900 microns; combine a certain amount of cobalt oxide and a certain amount of nickel oxide together Mix and fully stir with a certain amount of ethanol and nano-enamel powder to make a slurry with a certain viscosity, which is used as a sintered coating material for later use, wherein the amount of ethanol added is 10% of the mass of the slurry, and cobalt oxide and oxide The amount of nickel added is 1.5% and 3% of the mass of the slurry respectively, and the viscosity of the slurry is controlled to be 6Pa·s, and then the slurry after stirring is taken out, and then the slurry is evenly coated on a low-car...

Embodiment 2

[0032] This embodiment is basically the same as Embodiment 1, especially in that:

[0033] In this embodiment, a method for characterizing micro-area corrosion characteristics of a low-carbon steel surface coated with an enamel layer by using a wire beam electrode comprises the following steps:

[0034]a. Preparation of enamel sample: prepare enamel powder with a set composition formula to obtain nano-sized enamel powder with a particle size diameter of 10-900 microns; combine a certain amount of cobalt oxide and a certain amount of nickel oxide together Mix and fully stir with a certain amount of ethanol and nano-enamel powder to make a slurry with a certain viscosity, which is used as a sintered coating material for later use, wherein the amount of ethanol added is 10% of the mass of the slurry, and cobalt oxide and oxide The amount of nickel added is 1.5% and 3% of the mass of the slurry respectively, and the viscosity of the slurry is controlled to be 6Pa·s, and then the s...

Embodiment 3

[0042] This embodiment is basically the same as the previous embodiment, and the special features are:

[0043] In this embodiment, a method for characterizing micro-area corrosion characteristics of a low-carbon steel surface coated with an enamel layer by using a wire beam electrode comprises the following steps:

[0044] a. Preparation of enamel sample: prepare enamel powder with a set composition formula to obtain nano-sized enamel powder with a particle size diameter of 10-900 microns; combine a certain amount of cobalt oxide and a certain amount of nickel oxide together Mix and fully stir with a certain amount of ethanol and nano-enamel powder to make a slurry with a certain viscosity, which is used as a sintered coating material for later use, wherein the amount of ethanol added is 10% of the mass of the slurry, and cobalt oxide and oxide The amount of nickel added is 1.5% and 3% of the mass of the slurry respectively, and the viscosity of the slurry is controlled to be...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Particle size diameteraaaaaaaaaa
Diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a method for characterizing surface micro-corrosion characteristics of low carbon steel coated with an enamel layer by using a wire beam electrode. The wire beam electrode is used to characterize the surface micro-corrosion condition of low carbon steel coated with the enamel layer and the inhibition effect of the coating itself on a corrosion solution. The method adopts amulti-electrode coupling system, all the wires are short-circuited together, the electrochemical behavior is regarded as an integral electrode, and an open circuit potential is called the integral potential which is the coupling potential of all the single electrodes. On this basis, the corrosion of materials at different times is characterized. The surface potential and current scanning of the wire beam electrode can better characterize the occurrence and development of local corrosion of carbon steel in the corrosion solution in time and space; at the same time, local corrosion factors can quantitatively characterize the uneven characteristics of WBE surface corrosion and the ability of corrosion inhibitors to repair the local corrosion, and the wire beam electrode can be used to effectively characterize the corrosion of the material micro-region and the protection effect of the coating on a substrate and the inhibition of corrosive ions.

Description

technical field [0001] The present invention relates to a method for metal corrosion detection and evaluation, in particular to a method for corrosion detection and evaluation of low-carbon steel with an anti-corrosion coating, and also relates to a high-throughput detection of the influence of metal corrosion resistance The method is applied in the technical field of metal electrochemical microscopic testing. Background technique [0002] As early as the 19th century, human beings have realized the huge loss and harm caused by metal corrosion. Scholars at home and abroad have carried out a lot of research on the mechanism and protection of metal corrosion. The metal corrosion process is very complicated, and the activity of the corrosion interface is difficult to be completely consistent. Often, the corrosion rate and corrosion depth in a local area are much greater than the average value of the entire interface, and local corrosion occurs. The main cause of localized corr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01N17/02G01N1/28
CPCG01N1/28G01N17/006G01N17/02
Inventor 钟庆东李谦李育霖黄哲瑞肖晨陈串徐云祥
Owner SHANGHAI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap