用模拟闭塞电池方法研究了低碳钢／碱性ＮａＣｌ水溶液体系中央各部委中无机阴离子向塞区的电迁移规律及其对闭塞区的影响，结果 所选阴离子浓度范围内，ＣｒＯ４＾２、ＭｏＯ＾２－、ＷＯ４＾２－均能向闭塞区内迁移，它们遵循相同的规律，电迁移量随着时间的延长深度的提高而增大，其中ＷＯ４＾２－行 速度比ＣｒＯ４＾２、ＭｏＯ４＾２－小；添加一定浓度以上的这三种种郭能有效地阻止Ｃｌ＾－向闭塞区的迁移，浓度越高，效果赵
Simulated occluded cells were used to study the migration of inowc anions such as cG-. M&-.wG-and their effects on occluded cormsion of mild steel (A3) in O.Olml/L NaCl solution at 50C . It was found that with anodic currents passing the cell, all the anions migrated into the occluded cell. The quantity of migration increased with the time and the concentration, and wd,-was the slowest. They canretard the migration of C1- effectively above a certain concentration, The hlgher the concentration, the nwe efficient they were, cG-was the best. c&- and W4-caused pH fall faster. The effect of was distinctly, while wG-had the effect of retarding pH fall.
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