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所在平台: Udemy |
课程主页: https://www.udemy.com/course/corrosion-electrochemistry/
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课程名称：学习腐蚀电化学基础 课程概述：本在线课程专注于水相腐蚀的电化学基础，分为五个部分。通过学习，您将从电化学的角度建立对腐蚀相关过程的扎实理解。 第一部分“水相腐蚀的电化学特性”介绍了腐蚀的基本原理和分类，探讨阳极和阴极反应、金属和电解质中电荷的移动，以及法拉第定律在腐蚀计算中的应用。 第二部分“腐蚀热力学”讨论了腐蚀的热力学方面，强调腐蚀中的电位测量、标准电位和能斯特方程的重要性，并解释如何通过Pourbaix图评估不同金属/环境组合下反应的热力学可行性。 第三部分“腐蚀反应的动力学”聚焦于腐蚀过程的动力学，讨论了激活控制反应和扩散限制反应等关键概念；学习影响阴极反应的因素，如氧气还原和氢气演变，以及保护性氧化膜的形成。 第四部分“腐蚀行为”教您使用Evan图分析多个反应的腐蚀电极，并利用Stern-Geary方程估算腐蚀电流，掌握如何解释动极化电流曲线以评估腐蚀机制和被动金属在腐蚀环境中的行为。 最后，第五部分“电化学测量”介绍了进行电化学测量的实际问题，包括建立三电极池、将电位测量转换为氢参比电极标准，以及区分与开路电位和参考电极相关的电位极限。此外，还将学习调节动极化和线性极化实验的关键参数，并认识电解质电阻对动极化电流曲线的影响。 完成本课程后，您将全面理解腐蚀电化学的理论与实践，具备分析、评估以及通过线性极化和动极化方法实验测量腐蚀过程的能力。请注意，由于课程内容的性质，部分主题与“腐蚀科学与工程导论”课程存在不可避免的重叠。如您只关注腐蚀电化学，此课程非常适合您；如需更全面的腐蚀相关内容（包括腐蚀机制、保护措施及基本电化学理论），建议选择“腐蚀科学与工程导论”课程。
This online course on corrosion electrochemistry focuses the electrochemical aspects of aqueous corrosion in five sections. As you progress through this course, you will develop a strong foundation in the understanding corrosion-related processes from an electrochemical perspective.In the first section, "Electrochemical Nature of Aqueous Corrosion," you will learn about the fundamental principles and classifications of corrosion. You will learn to comprehend the electrochemical nature of aqueous corrosion, including anodic and cathodic reactions, the movement of electrical charge in metals and electrolytes, and the application of Faraday's law to corrosion-related calculations. In the second section, "Corrosion Thermodynamics," you will about the thermodynamic aspects of corrosion. This section discusses the significance of potential measurements in corrosion, standard potentials, and the Nernst equation. You will become able to interpret Pourbaix diagrams to assess the thermodynamic feasibility of reactions based on pH and potential, gaining an understanding of how thermodynamics govern corrosion behavior for different metals/environment combinations.In the third section, "Kinetics of Corrosion Reactions," you will focus on the kinetics of corrosion processes. Key concepts, such as activation-controlled reactions and diffusion-limited reactions, will be discussed. You will learn about the factors influencing cathodic reactions, including oxygen reduction and hydrogen evolution, and about the formation of protective oxide films. In section four, "Corrosion Behaviors", you will learn to employ Evan's diagrams for analyzing corroding electrodes with multiple reactions and estimate corrosion currents using the Stern-Geary equation. You will gain the ability to interpret potentiodynamic polarization curves to assess corrosion mechanisms and analyze the behavior of passive metals in corrosive environments.Finally, in the fifth section, "Electrochemical Measurements," you will learn about the practical aspects involved in conducting electrochemical measurements. This includes setting up a three-electrode cell, converting potential measurements to the hydrogen reference electrode standard, and distinguishing between potential limits referenced to the open circuit potential and the reference electrode. You will also learn to understand and manipulate key parameters for potentiodynamic polarization and linear polarization experiments, along with recognizing the impact of electrolyte resistance on potentiodynamic polarization curves.By the end of this course, you will have a comprehensive understanding of corrosion electrochemistry from both theoretical and practical perspectives. You should be able to analyze, evaluate, and experimentally measure corrosion processes by linear polarisation and potentiodyynamic polarisation methods. Please note that, due to the nature of the subjects, there is some unavoidable overlap in the topics discussed in this course and the course 'Introduction to Corrosion Science and Engineering'. If you are looking for a course that focuses on corrosion electrochemistry only, this is the course for you. If you are looking for a general course about corrosion ( corrosion mechanisms, corrosion protection measures, and minimal electrochemistry theory) the most appropriate course for you is 'Introduction to Corrosion Science and Engineering' available on this platform.
