论文标题
使用多物种反应性传输模型对关键电化学因子的临界电化学因子的数值研究
Numerical Investigation of Critical Electrochemical Factors for Localized Corrosion using a Multi-species Reactive Transport Model
论文作者
论文摘要
采用基于顺序非题方式的多物种反应性传输模型来研究参与不锈钢人工坑实验的两个主要阶段：I。在盐膜和II下稳定的凹痕。无膜的解散，转向重新激活。从具有不同深度的坑快速极化扫描获得的电流密度和电势的数据可用于校准每个阶段的经过的时间和电极动力学。模拟了在不同温度和大量浓度下坑底附近的局部化学，以确定饱和和重新激活时的几个关键电化学因子。
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.
