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首页> 外文期刊>International Journal of Electrochemical Science >Electrochemical Corrosion Behavior of C-250 Maraging Steel Grade in Sulfuric Acid Pickling Solution
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Electrochemical Corrosion Behavior of C-250 Maraging Steel Grade in Sulfuric Acid Pickling Solution

机译：C-250马氏体时效钢在硫酸酸洗液中的电化学腐蚀行为

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摘要

The effect of changing the time of immersion and temperature on the electrochemical corrosionbehavior of C-250 maraging steel grade in 1.0 M H2SO4 pickling solution was reported. The study wascarried out using potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS)investigations. It was found that the increase of immersion time from 10 min to 1 h, 2 h, and 24 hincreases the corrosion of the C-250 maraging steel in the acid solution through increasing thecorrosion current and corrosion rate, while decreasing the corrosion resistance as was indicated by thepolarization measurements. This effect was found to further increase with increasing the temperatureof the sulfuric acid solution from 20 to 50 C due to the increase of surface reactivity withtemperature. The results obtained by EIS measurements confirmed those ones obtained bypotentiodynamic polarization that C-250 maraging steel suffers sever uniform corrosion increases withelongating the immersion time and raising the solution temperature.
机译：报道了改变浸泡时间和温度对C-250马氏体时效钢在1.0 M H2SO4酸洗溶液中电化学腐蚀行为的影响。使用电位动力学极化和电化学阻抗谱（EIS）研究进行了该研究。发现浸入时间从10分钟增加到1小时，2小时和24分钟会通过增加腐蚀电流和腐蚀速率来增加C-250马氏体时效钢在酸性溶液中的腐蚀，同时降低其耐蚀性。由极化测量指示。发现随着表面温度随温度的增加，随着硫酸溶液的温度从20℃升高，该效果进一步增强。通过EIS测量获得的结果证实了通过电势极化获得的那些结果，即C-250马氏体时效钢遭受严重的均匀腐蚀，从而延长了浸入时间并提高了固溶温度。

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