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| 金属局部腐蚀的三维元胞自动机模型 | |
| 引用本文： | 郭东旭, 任克亮, 王燕昌, 郭晓菊, 张恩山. 金属局部腐蚀的三维元胞自动机模型[J]. 力学与实践, 2014, 36(4): 447-452. doi: 10.6052/1000-0879-13-495 |
| 作者姓名： | 郭东旭 任克亮 王燕昌 郭晓菊 张恩山 |
| 作者单位： | 宁夏大学物理电气信息学院, 银川750021 |
| 基金项目： | 国家自然科学基金（11262018，10962007）和宁夏自然科学基金（NZ1027）资助项目. |
| 摘 要： | 针对环境作用下金属表面容易形成坑蚀而致使结构性能退化这一问题. 采用元胞自动机方法，建立描述腐蚀环境中金属表面坑蚀形成及演化的三维模型，对不同腐蚀溶液浓度和温度条件下结构表面蚀坑随时间的变化过程进行了模拟，为定量评估服役环境中结构的剩余强度及寿命提供可能. |
| 关 键 词： | 金属 局部腐蚀 三维元胞自动机 模拟 |
| 收稿时间： | 2013-11-22 |
| 修稿时间： | 2014-03-05 |
THREE-DIMENSIONAL CELLULAR AUTOMATA MODEL FOR PREDICTING LOCAL CORROSION |
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| GUO Dongxu, REN Keliang, WANG Yanchang, GUO Xiaoju, ZHANG Enshan. THREE-DIMENSIONAL CELLULAR AUTOMATA MODEL FOR PREDICTING LOCAL CORROSION[J]. Mechanics in Engineering, 2014, 36(4): 447-452. doi: 10.6052/1000-0879-13-495 | |
| Authors: | GUO Dongxu REN Keliang WANG Yanchang GUO Xiaoju ZHANG Enshan |
| Affiliation: | Department of Physics & Electrical Information, Ningxia University, Yinchuan 750021, China |
| Abstract: | Under the service environment, because of chemical and electro-chemical reactions between the surrounding medium and the material elements, local corrosions are easy to form on the surface of metal. The corrosion damage will degrade the useful properties of materials and weaken the strength of the structures. In order to better understand the local corrosion damage degradation process, a numerical model based on the cellular automata method for the three-dimensional simulation of the metal corrosion damage is developed In a mesoscopic scale, the single-pit corrosion and the multi-pit corrosion on the surfaces of metal are simulated under different electrolyte concentrations and temperatures. The result provides a theoretical reference for studying the degradation mechanism of metal structures under the service environment. |
| Keywords: | metal|local corrosion|three-dimensional cellular automata|simulation |
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