| 马少政,孙虎元,孙立娟,王昭.3种钢材在东海初期腐蚀速率的空间变异分析[J].装备环境工程,2021,18(10):63-68. MA Shao-zheng,SUN Hu-yuan,SUN Li-juan,WANG Zhao.Analysis of the Spatial Variability of the Initial Corrosion Rate of Three Steel in the East China Sea[J].Equipment Environmental Engineering,2021,18(10):63-68. |
| 3种钢材在东海初期腐蚀速率的空间变异分析 |
| Analysis of the Spatial Variability of the Initial Corrosion Rate of Three Steel in the East China Sea |
| 投稿时间：2021-07-13 修订日期：2021-08-07 |
| DOI：10.7643/issn.1672-9242.2021.10.011 |
| 中文关键词: 东海 腐蚀 典型钢材 地统计分析 空间变异特征 |
| 英文关键词:East China Sea corrosion typical steel geostatistical analysis spatial variation characteristics |
| 基金项目:国家自然科学基金(41476067)；中国科学院科学号高端用户项目(KEXUE2018G13) |
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| Author | Institution |
| MA Shao-zheng | Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;University of Chinese Academy of Sciences, Beijing 100049, China;Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China |
| SUN Hu-yuan | Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China |
| SUN Li-juan | Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China |
| WANG Zhao | Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;University of Chinese Academy of Sciences, Beijing 100049, China;Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China |
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| 中文摘要: |
| 为了研究X80、EH36和45#钢在东海海域42个站位的初期腐蚀速率。通过动电位极化曲线法获取出海实测的X80、45#和EH36钢2019年9月在东海42个站位的初期腐蚀速率数据，并以地统计学方法对数据进行分析，探索研究区内3种钢材初期腐蚀速率的空间分布及其变异特征，绘制初期腐蚀速率预测图。对于每一种钢材初期腐蚀速率的空间分布，45#钢在西南部高，东北部低；EH36钢在东北部高，西南部低；而X80钢靠近长江口海域低，其他海域高。X80、45#、EH36钢在东海的平均初期腐蚀速率分别为0.42、0.49、0.17 mm/a，并且3种钢材在东海初期腐蚀速率分布的空间变异特征明显，空间自相关性强，X80、45#、EH36钢的块金值分别为0.0148、0.0044、0.0017，变程为1000~2000 km。 |
| 英文摘要: |
| To study the initial corrosion rate of X80, EH36 and 45# steel at 42 stations in the East China Sea, in this paper, the initial corrosion rate of X80, 45# and EH36 steel measured in the East China Sea in September 2019 were obtained by the potential polarization curve method. The data was analyzed by geostatistics to explore the spatial distribution and variation characteristics of the initial corrosion rate of the three steels in the study area, and draw the initial corrosion rate prediction map. The spatial distribution characteristics of the initial corrosion rate of each type of steel are as follows:the spatial distribution of the initial corrosion rate of 45# steel is higher in the southwest and lower in the northeast; the spatial distribution of the initial corrosion rate of EH36 steel is higher in the northeast, lower in the southwest; while the spatial distribution of the initial corrosion rate of X80 steel is obviously lower in the seas close to the Yangtze River estuary, and higher in other seas. The distribution of the initial corrosion rate of the three steels presents different characteristics. At the same time, statistical analysis shows that the average initial corrosion rate of the three steels in the East China Sea is 0.42 mm/a for X80, 0.49 mm/a for 45#, and 0.17 mm/a for EH36. In addition, the spatial variability of the initial corrosion rate distribution of the three steels in the East China Sea is obvious, and the spatial autocorrelation is strong. The nugget values of X80, 45# and EH36 are 0.0148, 0.0044, and 0.0017, respectively, and the range is between 1000~2000 km. |
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