| 土壤中宏电池对X70钢腐蚀作用的研究 |
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| 引用本文： | 伍远辉,刘天模,罗宿星,孙成.土壤中宏电池对X70钢腐蚀作用的研究[J].山东大学学报(理学版),2009,44(1):24-27. |
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| 作者姓名： | 伍远辉 刘天模 罗宿星 孙成 |
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| 作者单位： | 伍远辉,WU Yuan-hui(重庆大学材料科学与工程学院,重庆,400045;遵义师范学院化学系,贵州,遵义,563002);刘天模,LIU Tian-mo(重庆大学材料科学与工程学院,重庆,400045);罗宿星,LUO Su-xing(遵义师范学院化学系,贵州,遵义,563002);孙成,SUN Cheng(中国科学院金属研究所,金属腐蚀与防护国家重点实验室,辽宁,沈阳,110016)
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| 基金项目： | 贵州省科学技术基金，遵义市科技局资助项目 |
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| 摘 要： | 摘要：利用失重法、电化学阻抗测试技术等方法,研究了X70钢在土壤中的宏电池腐蚀行为。试验结果表明,宏电池粘土中
阳极的腐蚀速率为自然腐蚀速率的307倍。在宏电池阴阳极面积比15∶1情况下,粘土中宏电池阳极的腐蚀速率为阴阳极面积比1∶1时的210倍。随着实验时间的增加,粘土中X70钢自然腐蚀速率逐渐减
小,而宏电池阳极的腐蚀速率一直保持着相当高的腐蚀速率。
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| 关 键 词： | X70钢 宏电池腐蚀 土壤腐蚀 电化学阻抗 |
| 收稿时间： | 2008-03-03 |
Macro-cell corrosion of X70 steel in soils |
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| WU Yuan-hui,LIU Tian-mo,LUO Su-xing,SUN Cheng.Macro-cell corrosion of X70 steel in soils[J].Journal of Shandong University,2009,44(1):24-27. |
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| Authors: | WU Yuan-hui LIU Tian-mo LUO Su-xing SUN Cheng |
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| Institution: | 1.School of Material Science and Engineering;Chongqing University;Chongqing 400045;China;2.Department of Chemistry;Zunyi Normal College;Zunyi 563002;Guizhou;3.State Key Laboratory for Corrosion and Protection;Institute of Metal Research;Chinese Academy of Sciences;Shenyang 110016;Liaoning;China |
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| Abstract: | Macro cell corrosion of X70 steel in soils was studied by using weight loss and electrochemical impedance spectroscopy (EIS). It was found that the corrosion rate of anode in
clay was 307 times of that in natural condition. When the area ratio of cathode to anode was 15:1, the corrosion rate of the anode in clay was 210 times of that in condition
of the area ratio of cathode to anode being 1∶1. During the test, the corrosion rate of X70 steel in clay, which was buried, was slow, but the anode of the macro cell kept a
rapid corrosion rate. |
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| Keywords: | X70 steel macrocell corrosion soil corrosion EIS |
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