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中国腐蚀与防护学报  2006, Vol. 26 Issue (5): 315-320     
  综述 本期目录 | 过刊浏览 |
腐蚀和腐蚀模型研究中的分形方法
翁永基; 许述剑;边丽
中国石油大学(北京)
FRACTAL METHODS IN STUDYING CORROSION AND CORROSION MODEL
Yongji Weng;;
中国石油大学(北京)
全文: PDF(334 KB)  
摘要: 根据该领域近期进展,介绍分形理论在腐蚀行为描述及腐蚀 模型研究等领域的应用.具体分析了一些成功的事例,包括用分维值修正腐蚀波动性指标(如 标准偏差),以便更好地描述腐蚀行为;观察腐蚀表面分形特征,如早期大气腐蚀中微 液滴尺寸分布和腐蚀表面坑直径及深度分布,并获取分布分维指标;提出腐蚀图像分维的新 计算法,并发现其二维分维D2D和三维分维D3D分别代表表面坑直径及深度的分 布分维;建立基于分形动力学过程的腐蚀模型,预测金属在大气及土壤中的腐蚀发展,并揭 示了分形模型和经验模型之间的参数关联.
关键词 腐蚀行为腐蚀模型分形方法应用实例    
Abstract:Applications of fractal theory in describing corrosion behaviors and creating co rrosion model were introduced based on the recent progresses in the field.Severa l successful samples were demonstrated in details,namely:(1) to correct the ind ex denoting corrosion fluctuation(e.g.,standard deviation)by fractal dimension ( FD) to better describing corrosion behaviors;(2) to observe fractal characteris tics on corroded steel surface (e.g.,distribution for micro-droplet formation i n early atmosphere and for pit diameter and depth in soil corrosion) and obtain distribution FD;(3) to propose a new approach to estimate 2-dimension FD(D2 D) and 3-dimension FD(D3D) of corrosion image and find that they respect ively denoted FD for pit diameter and depth distribution;(4) to create corrosio n formation model based on fractal dynamic process to predict corrosion developi ng of metals in soil and atmosphere,and display the parameter-relation between fractal model and experimental model.
Key wordscorrosion behavior    corrosion model    fractal method    application sample
收稿日期: 2005-12-08     
ZTFLH:  TG172.4  
通讯作者: 翁永基     E-mail: wengyj@cup.edu.cn
Corresponding author: Yongji Weng     E-mail: wengyj@cup.edu.cn

引用本文:

翁永基; 许述剑; 边丽 . 腐蚀和腐蚀模型研究中的分形方法[J]. 中国腐蚀与防护学报, 2006, 26(5): 315-320 .
Yongji Weng. FRACTAL METHODS IN STUDYING CORROSION AND CORROSION MODEL. J Chin Soc Corr Pro, 2006, 26(5): 315-320 .

链接本文:

https://www.jcscp.org/CN/      或      https://www.jcscp.org/CN/Y2006/V26/I5/315

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