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首页> 外文期刊>ISIJ international >Pitting Corrosion of Type 430 Stainless Steel in the Process of Drying of Chloride Solution Layer
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Pitting Corrosion of Type 430 Stainless Steel in the Process of Drying of Chloride Solution Layer

机译：氯化物溶液层干燥过程中430型不锈钢的点蚀

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Pitting corrosion of type 430 stainless steel under a chloride solution layer was investigated to clarify the pitting corrosion behavior. The solution layers containing 2 mol/dm~(3) chloride ion with four different thicknesses of 1000, 500, 250, and 125 μm were placed on the stainless steel surface and dried by decreasing the relative humidity at various rates at 300 K. The corrosion potential and solution resistance were simultaneously monitored during drying in order to determine the concentration of chloride ion at the commencement of pitting corrosion. The results showed that the lowest chloride concentration for occurrence of pitting corrosion for type 430 is about 4.5 mol/dm~(3), and that pitting corrosion occurs at higher chloride concentration as the drying rate increases.
机译：研究了430型不锈钢在氯化物溶液层下的点蚀，以阐明点蚀行为。将包含2 mol / dm〜（3）氯离子的溶液层（四种厚度分别为1000、500、250和125μm）放置在不锈钢表面上，并通过以300 K的不同速率降低相对湿度进行干燥。在干燥过程中同时监测腐蚀电位和耐溶液性，以确定在点蚀开始时氯离子的浓度。结果表明，430型钢发生点蚀的最低氯化物浓度约为4.5 mol / dm〜（3），氯离子浓度越高，随干燥速率的增加而发生点蚀。

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