• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Corrosion monitoring and measurement >Study of Corrosion Initiation of a Steel Panel from a Defect in Coating Using Localized Electrochemical Impedance Spectroscopy (LEIS)
【24h】

Study of Corrosion Initiation of a Steel Panel from a Defect in Coating Using Localized Electrochemical Impedance Spectroscopy (LEIS)

机译：使用局部电化学阻抗谱（LEIS）研究钢板因涂层缺陷而引起的腐蚀

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Localized Electrochemical Impedance Spectroscopy (LEIS) was used to study corrosion initiation of a cold-rolled steel panel covered by electrodeposited coating (Ecoat). LEIS technique, developed from the conventional electrochemical impedance spectroscopy (EIS) that usually measures the impedance over an area in square centimetres, can measure the impedance of a sample over a much smaller area, which makes it a more appropriate technique for studying the early stage of corrosion initiated from small defects, such as pinholes and voids in the protective coatings. In the presented study, an isolated pinhole in the coating was found first, and then the sample was immersed in a salt solution. Initiation and development of corrosion from the pinhole was closely monitored. LEIS spectra measured in different stages showed interesting variations. The corresponding equivalent circuits were introduced to study the process, followed by brief explanation of the process. The study helped us better understand the mechanism of the corrosion initiation and its early development.
机译：局部电化学阻抗谱（LEIS）用于研究被电沉积涂层（Ecoat）覆盖的冷轧钢板的腐蚀起因。 LEIS技术是由常规的电化学阻抗谱（EIS）开发而成的，通常可以测量平方厘米区域内的阻抗，它可以在更小的区域内测量样品的阻抗，这使其成为研究早期阶段更合适的技术由小缺陷（例如保护层中的针孔和空隙）引发的腐蚀。在提出的研究中，首先在涂层中发现一个孤立的针孔，然后将样品浸入盐溶液中。密切监测了针孔腐蚀的发生和发展。在不同阶段测得的LEIS光谱显示出有趣的变化。介绍了相应的等效电路以研究该过程，然后对该过程进行简要说明。这项研究有助于我们更好地了解腐蚀引发的机理及其早期发展。

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