Long-term corrosion of offshore steel structures in near-stagnant seawater

近乎停滞的海水中海上钢结构的长期腐蚀

• 批准号: DP160101908
• 负责人: Prof Robert Melchers
• 金额: $ 49.27万
• 依托单位: The University of Newcastle
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2016
• 资助国家: 澳大利亚
• 起止时间: 2016-02-01 至 2021-04-30
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP160101908
• 关键词: Long; term; corrosion; offshore; steel

This project investigates the seawater corrosion of structural steels under near-stagnant and possibly polluted conditions. Better understanding of long-term corrosion of structural steels in near-stagnant seawaters is needed to predict the safety of steel offshore structures such as the pods supporting wind and wave energy generators. Also, the expensive maintenance of protective coatings and systems could be obviated or reduced if corrosion remains acceptable. This project plans to investigate experimentally the temporal development and stochastic nature of general corrosion and pitting for steels under actual near-stagnant seawater conditions. It also plans to build mathematical-probabilistic models for corrosion prediction, calibrated to field data. These models will include allowance for microbiological corrosion effects, important under anthropological pollution.

本计画研究结构钢在近停滞及可能污染条件下之海水腐蚀。需要更好地了解结构钢在近乎停滞的海水中的长期腐蚀，以预测海上钢结构的安全性，例如支撑风能和波浪能发电机的吊舱。此外，如果腐蚀仍然可以接受，则可以避免或减少保护涂层和系统的昂贵维护。本项目计划通过实验研究在实际近停滞海水条件下钢的一般腐蚀和点蚀的时间发展和随机性质。它还计划建立腐蚀预测的概率模型，并根据现场数据进行校准。这些模型将包括微生物腐蚀效应，这在人类学污染下很重要。