基于图像处理技术的钢箱梁防腐涂层寿命预测实验研究

中国腐蚀与防护学报

2013, Vol. 33

Issue (5): 407-412

研究报告

本期目录 | 过刊浏览

基于图像处理技术的钢箱梁防腐涂层寿命预测实验研究

刘涛¹, 艾军¹, 张丽芳¹, 张鹏飞², 杨朝辉², 徐春林²

1. 南京航空航天大学土木工程系南京 210016;
2. 浙江交工高等级公路养护有限公司杭州 310051

Life Prediction of Anti-corrosion Coating for Steel Box Girder by In-door Simulation Tests Combined with #br#Image Processing Technique

LIU Tao¹, AI Jun¹, ZHANG Lifang¹, ZHANG Pengfei²,
YANG Zhaohui², XU Chunlin²

1. Department of Civil Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2. Zhejiang Jiaogong Highway Maintencance Co. Ltd., Hangzhou 310051, China

全文: PDF(3655 KB)

摘要: 对表面电弧喷涂铝外加环氧封闭漆防腐涂层钢板试样进行室内加速腐蚀实验。通过扫描仪采集不同实验周期防腐涂层腐蚀形貌图像，观测腐蚀发展过程。采用基于二值化图像的图像处理技术提取腐蚀形貌图像特征参数，作为腐蚀寿命预测参数，并结合特征参数评定涂层腐蚀损伤程度。结果表明，基于二值化图像的图像处理技术可以实现防腐涂层腐蚀面积定量化分析，为防腐涂层腐蚀等级评定和腐蚀损伤规律表征提供了新的思路。封闭漆防腐涂层经过598 h的室内加速腐蚀实验，起泡面积率达到5%，该涂层失效。

关键词 ：钢箱梁, 腐蚀形貌, 图像处理, 二值化, 起泡率, 腐蚀评定

Abstract：In order to reveal the evolution of corrosion damage of the anti-corrosion coating for steel box girder, and predict its corrosion life, in-door accelerated tests was carried out for samples Q345C steel, which were coated firstly with an arc spraying aluminum layer and then a top sealing paint. Corrosion morphology image of paints was collected through flat-scanner. Characteristic parameters of corrosion morphology image were extracted through image processing technology to monitor the corrosion process so that to predict corrosion life and evaluate corrosion grade of the coating. The results show that image processing technology could realize a quantitative analysis of blistering area of the paint, and provide a new method for evaluting the corrosion grade as well as revealing the evolution process of corrosion damage. The coating losts efficacy with 5% blistering area of the top paint after 598 h indoor-accelerated corrosion test.

Key words： steel box girder corrosion morphology image image processing binary blistering
area evolution of corrosion damage

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引用本文:

刘涛, 艾军, 张丽芳, 张鹏飞, 杨朝辉, 徐春林. 基于图像处理技术的钢箱梁防腐涂层寿命预测实验研究[J]. 中国腐蚀与防护学报, 2013, 33(5): 407-412.
LIU Tao, AI Jun, ZHANG Lifang, ZHANG Pengfei,
YANG Zhaohui, XU Chunlin. Life Prediction of Anti-corrosion Coating for Steel Box Girder by In-door Simulation Tests Combined with #br#Image Processing Technique. Journal of Chinese Society for Corrosion and protection, 2013, 33(5): 407-412.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2013/V33/I5/407

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