汽车用镀锌钢/铝合金搭接件腐蚀的模拟分析
Simulation and Analysis of Corrosion of Overlap Joint Between Galvanized Steel and Aluminum Alloy for Automobile
摘 要
以汽车常用的CR330Y590T-DP GI50/50镀锌钢板和AA6016 T4铝合金板的搭接件为研究对象,应用腐蚀模拟软件对钢/铝搭接件进行电化学腐蚀模拟,并对其进行循环盐雾试验。通过对比外观形貌和腐蚀深度的模拟结果和试验结果分析了模型计算的可靠性。结果表明,腐蚀模拟结果与试验结果能够较好地吻合,这说明腐蚀模拟软件能在一定程度上模拟镀锌钢和铝合金的贴合面缝隙腐蚀情况。
电化学腐蚀
钢/铝连接
corrosion simulation
electrochemical corrosion
steel/aluminum connection
Abstract
Taking the overlap joint of CR330Y590T-DP GI50/50 galvanized steel plate and AA6016 T4 aluminum sheet commonly used in automobile as the research objects, the process of electrochemical corrosion of steel/aluminum overlap joints was simulated by corrosion simulation software, and cyclic salt spray corrosion tests were performed to the joints. The reliability of the model was analyzed by comparing the simulation results with the experimental results. The results show that the simulated results matched well with the actual tested results, which means the corrosion simulation software can simulate the crevice corrosion of joint surface between galvanized steel and aluminum alloy to a certain extent.
中图分类号 TG174 DOI 10.11973/fsyfh-202205006
所属栏目 数值模拟
基金项目
收稿日期 2020/8/10
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引用该论文: XU Hui,FANG Yu,LI Zhiqiang,GAO Changjuan,HAN Yinjiang,GUO Qiuyan,SHEN Yang. Simulation and Analysis of Corrosion of Overlap Joint Between Galvanized Steel and Aluminum Alloy for Automobile[J]. Corrosion & Protection, 2022, 43(5): 34
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参考文献
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