吴超,付冬梅,李晓刚.基于数据分析的大气腐蚀等级细化研究[J].装备环境工程,2015,12(4):16-21,71. WU Chao,FU Dong-mei,LI Xiao-gang.Refinement Research of Atmospheric Corrosion Categories Based on Data Analysis[J].Equipment Environmental Engineering,2015,12(4):16-21,71.
基于数据分析的大气腐蚀等级细化研究
Refinement Research of Atmospheric Corrosion Categories Based on Data Analysis
投稿时间:2015-04-18  修订日期:2015-08-15
DOI:10.7643/issn.1672-9242.2015.04.004
中文关键词:  大气腐蚀  等级细化  有序样本聚类  反距离加权插值
英文关键词:atmospheric corrosion  categories refinement  ordered sample clustering  inverse distance weighted interpolation
基金项目:国家自然科学基金重点项目 (51131005);国家重点基础研究发展计划项目 (2014CB643300);北京市重点学科共建项目 (XK100080537)
作者单位
吴超 北京科技大学,北京 100083 
付冬梅 北京科技大学,北京 100083 
李晓刚 北京科技大学,北京 100083 
AuthorInstitution
WU Chao University of Science and Technology Beijing, Beijing 100083 
FU Dong-mei University of Science and Technology Beijing, Beijing 100083 
LI Xiao-gang University of Science and Technology Beijing, Beijing 100083 
摘要点击次数:
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中文摘要:
      目的 提出一种基于数据分析的方法对大气腐蚀等级进行细化。方法 以碳钢为例, 采用有序样本聚类方法, 对国内大气腐蚀试验站多年积累的腐蚀速率进行分析, 将大气腐蚀等级细化为10级。在此基础上, 根据腐蚀速率以及相应大气环境中的二氧化硫浓度、 氯离子浓度、 润湿时间的数据, 采用反距离加权插值法, 并结合ISO 9223—2012标准获取等级细化后的碳钢大气腐蚀性等级估计表。结果 经过细化之后的大气腐蚀等级 10 级分级结果为 0~8 μm/a(C1), 8~25 μm/a(C2), 25~40 μm/a(C3), 40~50 μm/a(C4), 50~60 μm/a(C5), 60~75 μm/a(C6), 75~90 μm/a(C7), 90~100 μm/a(C8), 100~200 μm/a(C9), 200~700μ m/a(C10)。结论 该10级分级法将大气腐蚀等级划分得更为细化。
英文摘要:
      Objective To propose a new method based on data analysis to refine the atmospheric corrosion categories. Methods The method of ordered sample clustering was used in this paper to analyze the data of carbon steel corrosion rate accumulated in atmospheric corrosion test stations in China during the past years. As a result, the atmospheric corrosion degree of carbon steel was divided into 10 categories. On this basis, the inverse distance weighted interpolation method combined with ISO 9223—2012 standard was used to obtain the estimation table of atmospheric corrosivity categories according to the concentration of sulfur dioxide, concentration of chlorine ion, time of wetness data and the corrosion rate data of carbon steel in the corresponding atmospheric environment. Results The result of refined 10 categoried was 0~8 μm/a(C1), 8~25 μm/a(C2), 25~40 μm/a(C3), 40~50 μm/a(C4), 50~60 μm/a(C5), 60~ 75 μm/a(C6), 75~90 μm/a(C7), 90~100 μm/a(C8), 100~200 μm/a(C9), and 200~700 μm/a(C10). Conclusion This 10-category method is more refined in describing atmospheric corrosion.
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