Mesoscopic Simulation of Diffusion Characteristics in the Corrosion Film

材料科学技术（英文）, 2012, 28(5): 427-432.

Mesoscopic Simulation of Diffusion Characteristics in the Corrosion Film

^1, , ^2,

1.State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

2.State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

基金项目: the National Natural Science Foundation of China(51001110) supported by the National Science and Technology Major Project(2011ZX06004-009)

关键词：扩散特性 , 腐蚀膜 , 介观模拟 , 元胞自动机模型 , 薄膜生长 , 介观尺度 , 演化规律 , 腐蚀速率

Mesoscopic Simulation of Diffusion Characteristics in the Corrosion Film

Haitao Wang ^1, , En-Hou Han ^2,

1.State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

2.State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

Keywords： Corrosion , Simulation , Diffusion , Cellular automata ,

A cellular automata model was used to study the diffusion characteristics in the corrosion film at a mesoscopic scale. The model focused on a metal/film/electrolyte system, including a series of local evolution rules. The effect of diffusion rate on the film growth and metal corrosion was investigated. The result showed that the growth rate of the film followed a power law with the diffusion steps, and the corrosion rate had the same law as that of the film growth in the model with the feedback effect. There existed a diffusing plane in the film, where the concentration of the diffusing species did not depend on time. The diffusion steps were found to have a great influence on the position and species concentration of the diffusing plane.

参考文献

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材料期刊网

Mesoscopic Simulation of Diffusion Characteristics in the Corrosion Film

Mesoscopic Simulation of Diffusion Characteristics in the Corrosion Film

参考文献