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[引言]自然环境中,以海洋环境腐蚀性最强。因此,在海上结构物的设计中,腐蚀是应予考虑的重要的因素之一。必须对暴露在海洋环境中的所有重要结构件进行考虑,装备防腐系统,以保证这些部件在整个设计使用寿命期间能处于安全运转条件下。这就要求详细了解结构材料在实际条件下的腐蚀行为以及防腐系统的长期性能。尽管在设计、制造和安装过程中作了一切应有的考虑,但仍有实际使用寿命低于设计寿命的危险。
[Introduction] In the natural environment, the marine environment is the most corrosive. Therefore, in the design of offshore structures, corrosion is one of the important factors to be considered. All important structural elements exposed to the marine environment must be considered and equipped with a corrosion protection system to ensure that these components are in safe working conditions throughout their design service life. This requires a detailed understanding of the corrosion behavior of the structural material under actual conditions and the long-term performance of the corrosion protection system. Despite all due diligence in the design, manufacture and installation, there is still a danger that the useful life will be lower than the design life.