基于多组分反应输运模型的局部腐蚀临界电化学因素的数值研究
Numerical Investigation of Critical Electrochemical Factors for Localized Corrosion using a Multi-species Reactive Transport Model
摘要：
采用一个基于序贯非迭代方法的多组分反应输运模型，研究了不锈钢人工蚀坑实验中的两个主要阶段：I。盐膜下的稳定点蚀和II。无膜溶解过渡到再钝化。通过对不同深度凹坑的快速极化扫描获得的电流密度和电势数据，用于校准每个阶段的经过时间和电极动力学。模拟了不同温度和体积浓度下凹坑底部附近的局部化学，以确定饱和和再钝化时的几个关键电化学因素。
英文摘要：
A multi-species reactive transport model based on the sequential non-iterative approach is employed to investigate two major stages involved in artificial pit experiments of stainless steel: I. Stable pitting under a salt film and II. Film-free dissolution that transitions to repassivation. Data of current density and electrical potential obtained from rapid polarization scans of pits with different depths are utilized to calibrate the elapsed time and the electrode kinetics of each stage. The local chemistry near the base of pits at different temperature and bulk concentrations is simulated to determine several critical electrochemical factors at saturation and repassivation.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
