Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for testing and evaluating dynamic morphology features of material during corrosion process

A technology of corrosion process and topographic features, which is applied in the field of dynamic topographic feature testing and evaluation of material corrosion process to achieve the effects of complete dynamic information, simple processing process, and accurate feature determination.

Inactive Publication Date: 2014-01-01
HARBIN INST OF TECH AT WEIHAI
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of testing and evaluating the dynamic morphology characteristics of the material corrosion process, the purpose of the present invention is to provide a method for testing and evaluating the dynamic morphology characteristics of the material corrosion process

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 testing and evaluating dynamic morphology features of material during corrosion process
  • Method for testing and evaluating dynamic morphology features of material during corrosion process
  • Method for testing and evaluating dynamic morphology features of material during corrosion process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0039] This implementation mode includes the following steps:

[0040] Step 1: wire-cut 45# steel parts that have been in service for 3 days, 6 days, 9 days, and 12 days in a 3.5% NaCl solution environment into test samples with a size of 10mm×10mm×2mm, rinse with deionized water for 5 minutes, and use a mass concentration Ultrasonic cleaning with 10% acetone for 10 minutes, the frequency of ultrasonic cleaning is 20KHz, rinse with ultrapure water, dry and set aside;

[0041] Step 2: Use the Olympus OLS3000 laser confocal microscope to image the surface of the corrosion history of the sample treated in step 1, as shown in figure 1 As shown, and set the shape measurement area of ​​128μm×96μm, the three-dimensional direction cut-off frequency of 2800Hz, and the sampling interval of 0.125μm to record the three-dimensional coordinate data;

[0042] Step 3: According to the actual situation, the diameter of the pipe is 0.03 meters, the flow rate is 0.1 m / s, the density is 1 kg / m3,...

specific Embodiment approach 2

[0048] This implementation mode includes the following steps:

[0049] Step 1: Wire-cut T2 copper parts that have been in service for 3 days, 6 days, 9 days, and 12 days in a 3.5% NaCl solution environment into test samples with a size of 10mm×10mm×2mm, rinse with deionized water for 5 minutes, and then use a mass concentration of 10% acetone for ultrasonic cleaning for 10 minutes, the frequency of ultrasonic cleaning is 20KHz, then rinse with ultrapure water, dry and set aside;

[0050] Step 2: Use the Olympus OLS3000 laser confocal microscope to image the surface of the corrosion history of the sample treated in step 1, as shown in image 3 As shown, and set the shape measurement area of ​​128μm×96μm, the three-dimensional direction cut-off frequency of 2800Hz, and the sampling interval of 0.125μm to record the three-dimensional coordinate data;

[0051] Step 3: According to the actual situation, the diameter of the pipe is 0.03 meters, the flow rate is 0.1 m / s, the density...

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

No PUM Login to View More

Abstract

A method for testing and evaluating the dynamic morphology features of a material during the corrosion process comprises the following steps: firstly, trimming in-service samples in different stages into test samples with certain sizes; conducting ultrasonic cleaning on the test samples with acetone after the test samples are cleaned with deionized water; blow-drying the test samples for later use after the test samples are cleaned with ultrapure water; conducting surface imaging on the test samples through an image acquisition tool and recording three-dimensional coordinate data; judging the flow condition of a corrosive medium according to the Reynolds number of the corrosive medium; calculating the boundary layer thickness of the corrosive medium in the flow condition; processing the data according to the Gaussian evaluation criterion; drawing a contour line-type corrosion morphology graph; calculating the change degrees of the surface areas of the test samples during the corrosion processes; judging the corrosion features of the material. According the method, the treating processes of the testing and evaluating of the dynamic morphology features of the material during the corrosion process are simple and convenient, and the acquired dynamic information of the corrosion process is complete. The method can effectively evaluate the morphology evolution of the material during the corrosion process and accurately judge the corrosion features of the material.

Description

technical field [0001] The invention belongs to the technical field of material corrosion testing and evaluation, and relates to a method for testing and evaluating dynamic morphology characteristics in a material corrosion process. Background technique [0002] Materials in contact with corrosive media have experienced complex physical, chemical and electrochemical processes. Due to the nonlinearity of these processes, the resulting surface morphology is often irregular and uneven. The image of material corrosion morphology is an important basis for judging the type of corrosion, analyzing the degree of corrosion, studying the law and characteristics of corrosion, and taking effective protective measures. In-depth analysis of corrosion morphology images can obtain useful corrosion degree evaluation data, which is helpful to analyze the occurrence and development of corrosion, and determine the service performance and service life of materials. [0003] At present, the eval...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00G01B11/24G01B11/30
Inventor 张鹏苏倩陈刚栾冬郭斌程树康
Owner HARBIN INST OF TECH AT WEIHAI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com