表面技术2023，Vol.52Issue(12)：225-248,24.DOI:10.16490/j.cnki.issn.1001-3660.2023.12.020
服役于海洋环境的金属管道防护涂层研究进展
Review on the Progress of the Metal Pipeline Protective Coating Serving in Marine Environment
摘要
Abstract
Metal pipeline is an important carrier for continuous and rapid transportation of marine resources such as gas,oil and ore.In the complex and harsh marine environment,the inner and outer walls of the metal pipeline have to withstand the coupling operating conditions of chemical corrosion and physical friction brought by the seawater environment and substances transported,leading to the damage and failure of the pipeline.This seriously shortens the service life of the metal pipeline in the marine environment.Surface coating for the metal pipeline is a direct and effective treatment to modify and strengthen the workpiece,and therefore support it work safely and stably with extended service life.Thus,the development of high-performance protective coatings for metal pipeline adapted to the harsh marine service environment has both significant economic and social values. In this paper,the harsh corrosion environment and various corrosion behaviors of marine metal pipelines are firstly introduced,and then the common protective coatings for marine metal pipelines are classified and summarized.Besides,this review also concludes the advantages and disadvantages of the different protective coating systems by comparing their microstructure,corrosion resistance,wear resistance and the corresponding failure mechanisms,which provides an important reference for the innovation,design and optimization of the new coating materials and structures.In detail,the existing metal coating for marine pipelines is mainly alloys such as nickel alloys,zinc alloys and aluminum alloys.The main advantages of the metal coatings are high strength,high hardness,good toughness,strong binding force of the coating and substrate,and good compatibility with the physical and chemical properties of the substrate materials.Ceramic coatings can be mainly subdivided into nitride ceramics,oxide ceramics and composite ceramics,which has been widely employed for surface protection because of its dense structure,high hardness and good electrochemical impedance.In addition,polymer coating is also a sort of widely used marine anticorrosive coating because of the outstanding chemical corrosion resistance,high density,excellent flexibility and easy maintaining.Typical and representative polymer coatings are ethylene oxide,vinyl resin,polyurethane and so on.In general,polymer coating is mainly used in the external side of marine metal pipelines.In general,it is necessary to comprehensively consider the corrosion environment,pipeline matrix,economic cost and other factors,and then select the proper coating materials system. On the basis,this paper also looks forward to the future research directions of the marine metal pipeline protective coating materials.In the future,researchers may pay more attention to the development of new coating systems with multiple functions,e.g.,high-entropy alloys,high-entropy ceramics,high-performance carbon materials,and amorphous materials.Also,developing new coating structures,such as functional graded coatings,inorganic/organic composite coatings,alloy/ceramic composite coatings,and metal-organic/graphene-modified composite coatings,could be another effective option to offer excellent protective performance for the metal pipeline.关键词
海洋环境/管道防护/防护涂层/耐腐蚀/耐磨损Key words
marine environment/pipeline protection/protective coating/corrosion resistance/wear resistance分类
金属材料引用本文复制引用
王传彬,李秀一,徐志刚,彭健,夏禹,张颖,沈强..服役于海洋环境的金属管道防护涂层研究进展[J].表面技术,2023,52(12):225-248,24.基金项目
广东省基础与应用基础研究重大项目(2021B0301030001) （2021B0301030001）
国家大学生创新创业训练计划项目(S202210497024)Basic and Applied Basic Research Project of Guangdong Province(2021B0301030001) （S202210497024）
National Innovation and Entrepreneurship Training Program for College Students(S202210497024) （S202210497024）
