压水堆核电站结构材料的腐蚀行为研究进展

利用具有高品质、高效率的核电能源对有效促进我国能源结构转型具有重大意义，保障核电站的安全运行是发展核电的基础和重点。由于核电站结构材料在相关水环境中极易受到腐蚀而影响核电站的安全运行，因此对这些设备材料的腐蚀行为开展深入研究尤为重要。本文以目前国内外使用率最高的堆型压水堆（PWR）核电站为重点，综述其结构材料在运行过程中常见的一些腐蚀类型，重点分析应力腐蚀、点蚀、电偶腐蚀的特征、机理及影响因素，并对PWR核电结构材料的发展趋势进行展望。

Research Progress on the Corrosion Behavior of Structural Steels of Pressurized Water Reactor Nuclear Power Plant

The utilization of nuclear energy with high quality and efficiency is of great significance to effectively promote the transformation of China's energy structure. It is the basis and focus of the development of nuclear power to ensure the safe operation of nuclear power plants. Because the structural materials of nuclear power plant are vulnerable to corrosion in the relevant water environment, which affects the safe operation of nuclear power plant, it is particularly important to carry out in-depth research on the corrosion behavior of these equipment and materials. This paper focuses on the pressurized water reactor (PWR) nuclear power plant with the highest utilization rate in China and internationally, summarizes some common corrosion types of its structural materials in the operation process, and mainly analyzes the characteristics, mechanism and influencing factors of stress corrosion, pitting corrosion and galvanic corrosion, and looks forward to the development trend of PWR nuclear electrical structural materials.