• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Corrosion conference and expo 2011 >Study of AC Corrosion on Coated Pipeline Steel in Simulated Soil Solution
【24h】

Study of AC Corrosion on Coated Pipeline Steel in Simulated Soil Solution

机译：模拟土壤溶液中覆膜管线钢交流腐蚀的研究

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Buried pipelines paralleling or crossing high voltage power line systems are often subjected to induced AC interference, which may cause serious corrosion risk. There have been many conclusions including size of coating defects, AC current density, etc. to estimate corrosion condition, but no industry standard evaluation criterion has been established. In this paper, the AC induced corrosion of coated pipeline was studied with coated specimens in simulated soil solution under various experimental conditions to determine the AC corrosion risk considering the cathodic protection, coating defects, AC current density, soil acidity/alkalinity, and the soil resistivity. It has been identified that failures in oil and gas transmission pipelines by destructive pitting may be caused by AC interference. Pitting corrosion was also studied in this paper by electrochemical measurements and AC corrosion mechanism was further analyzed. Specific morphology of characteristics of AC corrosion was observed by Scanning Electron Microscope (SEM) technical.
机译：与高压电力线系统并联或交叉的地下管线经常受到感应的AC干扰，这可能会导致严重的腐蚀风险。已经有许多结论，包括涂层缺陷的大小，交流电流密度等来估计腐蚀条件，但是还没有建立行业标准的评估标准。本文通过在模拟土壤溶液中的涂层样本在各种实验条件下研究涂层管道的交流感应腐蚀，以确定考虑到阴极保护，涂层缺陷，交流电流密度，土壤酸度/碱度和土壤的交流腐蚀风险电阻率。已经确定，由于破坏性的点蚀而导致的石油和天然气输送管道的故障可能是由交流干扰引起的。本文还通过电化学测量研究了点腐蚀，并进一步分析了交流腐蚀机理。通过扫描电子显微镜（SEM）技术观察到AC腐蚀特征的特定形态。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号