【摘要】 介绍了海洋滩涂环境的特点及其与海底泥土的区别,分析了该环境下微生物腐蚀的发生情况。微生物腐蚀被认为是自然界中最具有侵略性的因素之一,也是目前引起管线破坏失效最主要的因素之一。详细介绍了微生物,尤其是SRB引起的管线腐蚀的相关动态,主要涉及SRB对氢渗透、失效涂层、缺陷处局部腐蚀、阴极保护的影响。同时,对镁阳极在滩涂环境中的突然失效,以及SRB对镁阳极等材料腐蚀严重性等问题进行了总结和分析。最后,提出了滩涂环境中SRB的存在对镁合金的影响及研究前景。根据滩涂环境自身的特殊性,研究SRB的存在对滩涂环境中镁阳极性能和油气管线安全运行的影响尤为重要。更多还原

【Abstract】 This paper described the characteristics of the marine mudflat environment and its difference from submarine mud, and analyzed the occurrence of microbiologically influenced corrosion in this environment. Microbiologically influenced corrosion was considered as one of the most aggressive factors in nature, which was also one of the most important factors causing pipelines failure. This paper introduced the research trends of pipeline corrosion caused by microbiologically influenced corrosion in detail, especially about SRB. It mainly focused on the influence of SRB on hydrogen penetration, failure coatings,local corrosion at defects and cathodic protection. At the same time, the sudden failure of magnesium anodes in the current mudflat environment and the serious corrosion of SRB on magnesium anodes and other materials was summarized and analyzed.The influence and research prospect of SRB existing on magnesium alloys in the mudflat environment was proposed. According to the special mudflat environment, it was particularly important to carry out the research on the influence of SRB on magnesium anode performance, which was even important about the safe operation of oil and gas pipelines.更多还原