环境作用下金属表面形态变化的元胞自动机模拟

来源 :中国计算力学大会2018暨国际华人计算力学大会2018 | 被引量 : 0次 | 上传用户:yuwen0702
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  采用元胞自动机方法,从介观尺度对金属腐蚀产物的形成及演化过程进行研究。通过定义金属腐蚀的反应规则引入影响腐蚀产物生成的三个主要环境因素(腐蚀元胞浓度、溶解概率、环境温度),对不同环境下金属腐蚀产物的形成及发展过程进行了模拟。结果 显示:腐蚀产物-时间的模拟曲线近似呈二次函数关系;在三个因素的交互作用下,腐蚀产物体积较已腐蚀金属体积显著增大。这为环境因素作用对金属结构完整性和安全性的研究提供了一定参考和帮助。
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