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所在平台: Udemy |
课程主页: https://www.udemy.com/course/cathodic-protection/
课程评论：没有评论
**Coursera课程总结：掌握阴极保护基础** 本课程全面深入地介绍了理解和设计阴极保护（CP）系统的基础知识。课程从最基本的概念入手，探索阴极保护的基本机理，电解质的作用，以及牺牲阳极和外加电流阴极保护系统的关键组成部分。 学习者将深入理解外加电流对腐蚀的影响，尤其是阴极电流如何有效抑制腐蚀。课程还将教授如何使用参比电极和伏特计测量结构的电位。 实际应用方面，课程详细探讨了欧姆效应、被保护结构附近的电化学反应、基于保护标准设计和评估CP系统的方法，以及如何避免过度保护。此外，还讨论了环境中电位梯度的成因、阳极和结构附近的电流分布、远程阳极的优势、评估电流分布均匀性的方法以及杂散电流腐蚀问题。 课程内容还包括阳极电阻、地床特性、用于估算CP电流的排流测试，以及涂层对CP电流需求的影响。 完成本课程后，学习者将对阴极保护系统的基本概念及其在预防腐蚀方面的有效性因素有透彻的理解，并能自信地解决特定的阴极保护问题。
The course offers a comprehensive overview of essential concepts for understanding and designing cathodic protection (CP) systems. It begins with the fundamentals, where learners will explore the basic mechanisms of CP, the role of electrolytes, and the components of sacrificial anodes and impressed current CP systems.Learners will understand the impact of applied currents on corrosion, including how cathodic currents can prevent corrosion, and will learn how to measure a structure's potential using reference electrodes and voltmeters. Practical considerations such as ohmic effects, electrochemical reactions near protected structures, the design and assessment of CP systems based on protection criteria, and avoiding overprotection are considered in detail. The course also discusses the origin of potential gradients in the environment, the distribution of current near the anode and near the structure, the benefits of remote anodes, the methods for evaluating uniform current distribution, and the issue of stray current corrosion. Topics like anode resistance, groundbed properties, current drain tests for estimating CP current, and the impact of coatings on CP current requirements are covered.By the end of this course, learners will have a thorough understanding of fundamental concepts related to cathodic protection systems and the factors influencing their effectiveness in preventing corrosion, gaining the confidence needed to address specific cathodic protection problems.
