| 动电位极化法评价海底土腐蚀性 |
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| 引用本文： | 季明棠,陆长山,杨芳英,倪湘毓.动电位极化法评价海底土腐蚀性[J].海洋与湖沼,1994,25(6):665-670. |
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| 作者姓名： | 季明棠 陆长山 杨芳英 倪湘毓 |
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| 作者单位： | 中国科学院海洋研究所!青岛，266071，中国海洋石油工程设计公司!天津，300452，中国科学院海洋研究所!青岛，266071，中国科学院海洋研究所!青岛，266071 |
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| 基金项目： | 中国科学院重大项目!87－18－04 |
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| 摘 要： | 利用新设计的模拟海底沉积物腐蚀环境的电解池，研究动电位极化法评价海底土（１９８８年７月采于辽东湾）腐蚀性的可行性。结果表明，该方法能显示出当材料表面状态不同时以及当海土温度和电阻率变化时电极过程的差异，可用于海底土腐蚀性的测试。
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| 关 键 词： | 动电位极化法 海底土 腐蚀性 沉积物 |
| 收稿时间： | 1992/12/22 0:00:00 |
| 修稿时间： | 1994/2/28 0:00:00 |
POTENTIODYNAMIC POLARIZATION METHOD FOR EVALUATING CORROSIVENESS OF SEA BED SEDIMENT |
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| Ji Mingtang,Lu Changshan,Yang Fangying and Ni Xiangyu.POTENTIODYNAMIC POLARIZATION METHOD FOR EVALUATING CORROSIVENESS OF SEA BED SEDIMENT[J].Oceanologia Et Limnologia Sinica,1994,25(6):665-670. |
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| Authors: | Ji Mingtang Lu Changshan Yang Fangying and Ni Xiangyu |
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| Institution: | Institute of Occanology. Academia Sinica, Qingdao 266071;China Offshore Oil Depelopment and Effgineering Corporation, Tianjin 300452;Institute of Occanology. Academia Sinica, Qingdao 266071;Institute of Occanology. Academia Sinica, Qingdao 266071 |
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| Abstract: | A cell designed to produce an anaerobic experimental environment modeling sea bed sediments was used to test two kinds of steel(A3, and AP15LX) exposed to various Liaodong Bay sea bed sediment in 1988. The respective corrosion behaviour of coated, rusted and bare A3 steel surfaces in the same mud was investigated using potentiodynamic polarization method to obtain tlieir polarization curves under vari-ous corrosion environment determined.Potentiodynamic polarization experiments were conducted at scan rates of 5mV/s and one steel sample was polarized both anodically and cathodically in one measu-rement to avoid confusion caused by locally differing two sediment samples.The results show that this technique is sensitive to variations in surface corro-sion condition of the steel sample, types of sediments, temperature, resistivity of sediments etc.. The system can be used for comparison between different sediments corrosiveness and determining the corrosion behaviour difference of the same kinds of stee1 with various surface conditions and exposed to the same corrosion environ-ment. The authors suggest that this technique is useful for evaluating corrosiveness of sea bed sediments and determining corrosion control parameters of steel in anae- robic mud. |
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| Keywords: | Potentiodynamic polarization method Sea bed sediments Corrosiveness |
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