首页 | 期刊简介 | 编委会 | 投稿指南 | 常用下载 | 联系我们 | 期刊订阅 | In English
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.海洋与湖沼,1994,25(6):665-670.
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  下载PDF阅读器  关闭
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 1444次   下载 1173 本文二维码信息
码上扫一扫!
分享到: 微信 更多
动电位极化法评价海底土腐蚀性
季明棠1, 陆长山2, 杨芳英1, 倪湘毓1
1.中国科学院海洋研究所 青岛 266071;2.中国海洋石油工程设计公司 天津 300452
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。
关键词:  动电位极化法  海底土  腐蚀性
DOI:
分类号:
基金项目:中国科学院重大项目,87-18-04号
附件
POTENTIODYNAMIC POLARIZATION METHOD FOR EVALUATING CORROSIVENESS OF SEA BED SEDIMENT
Ji Mingtang1, Lu Changshan2, Yang Fangying1, Ni Xiangyu1
1.Institute of Occanology. Academia Sinica, Qingdao 266071;2.China Offshore Oil Depelopment and Effgineering Corporation, Tianjin 300452
Abstract:
A cell designed to produce an anaerobic experimental environment modeling sea bed sediments was used to test two kinds of steel (A3, and API5LX) exposed to various Liaodong Bay sea bed sediment in 1988. The respective corrosion behavior of coated, rusted and bare A3 steel surfaces in the same mud was investigated using potentiodynamic polarization method to obtain their polarization curves under various corrosion environment determined.

Potentiodynamic polarization experiments were conducted at scan rates of 5 mV/s and one steel sample was polarized both anodically and cathodically in one measurement to avoid confusion caused by locally differing two sediment samples.

The results show that this technique is sensitive to variations in surface corrosion 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 steel with various surface conditions and exposed to the same corrosion environment. The authors suggest that this technique is useful for evaluating corrosiveness of sea bed sediments and determining corrosion control parameters of steel in anaerobic mud.

Key words:  Potentiodynamic polarization method, Sea bed sediments, Corrosiveness
版权所有 海洋与湖沼 Oceanologia et Limnlolgia Sinica Copyright©2008 All Rights Reserved
主管单位:中国科协技术协会 主办单位:中国海洋湖沼学会
地址:青岛市海军路88号  邮编:266400  电话:0532-82898753  E-mail:ols@qdio.ac.cn
技术支持:北京勤云科技发展有限公司