海水环境下金属腐蚀过程数值模拟  

Numerical Simulation of Metal Corrosion Process in Seawater Environment

作　　者：冯丽 蔡琦[1] FENG Li;CAI Qi(Department of Nuclear Science and Engineering,Navy University of Engineering,Wuhan 430033,China;Repairing and Supervising Room of Naval Equipment in Shanghai Area,Shanghai 200136,China)

机构地区：[1]海军工程大学核能科学与工程系,武汉430033 [2]海军上海监修室,上海200136

出　　处：《机械工程师》2018年第11期16-18,共3页Mechanical Engineer

基　　金：中国博士后科学基金资助项目(2016M592964)

摘　　要：在海洋环境中,大部分金属容易与海水介质发生反应而腐蚀,特别是南海海域有着"高温、高湿、高盐"的特点,金属材料在"三高"环境下的腐蚀尤其严重。研究海洋环境下金属表面的腐蚀过程,对深入了解材料表面腐蚀损伤的形成机理和演化过程,以及进一步定量描述金属材料结构性能的退化失效等,都具有重要的理论和实际意义。该文在分形表面基础上,对海水环境下金属腐蚀过程进行数值模拟,研究不同海水浓度下金属材料腐蚀表面形貌特征及其变化规律,为海洋环境下金属腐蚀规律和腐蚀机理的进一步研究提供思路。In the marine environment, most metals are easily corroded by reaction with seawater media. In particular, the South China Sea has the characteristics of high temperature, high humidity and high salt, and the corrosion of metallic materials in this environment is particularly serious. Studying the corrosion process of metal surface in marine environment has important theoretical and practical significance for understanding the formation mechanism and evolution process of corrosion damage on the surface of materials, and further quantitatively describing the degradation failure of structural properties of metal materials. Based on the fractal surface, the metal corrosion process in seawater environment is numerically simulated. The corrosion surface morphology and its variation of metal materials under different seawater concentrations are studied. The ideas for metal corrosion and corrosion mechanism in marine environment are provided.

关 键 词：海水 分形理论 金属 腐蚀 数值模拟 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]