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首页> 外文期刊>Corrosion Engineering, Science and Technology >Corrosion study of SS-316L exposed to LiBr-H2O solution applying electrochemical techniques and weight loss method
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Corrosion study of SS-316L exposed to LiBr-H2O solution applying electrochemical techniques and weight loss method

机译：电化学技术和失重法研究Li-H 2 O溶液对SS-316L的腐蚀

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Corrosion evaluation of SS-316L exposed to LiBr-H2O solution of 50 wt-% was investigated applying the electrochemical noise technique (ENT), potentiodynamic polarisation curves, and the weight loss method (WLM) at 25, 50, 60, 70 and 80°C. The current and potential noise signals were obtained each four hours during 15 days. These data were analysed in the time and frequency domains. A statistical analysis was made to obtain the localisation index and the resistance noise. Also, the Stern-Geary equation and the Faraday's law were used to determine the corrosion rates. A comparison of the corrosion rates obtained from ENT and WLM showed the same tendency with temperature, but a difference of one order of magnitude was seen. The results of the corrosion rates from ENT and WLM presented a good agreement with the inverse noise resistance results. SEM analyses of the corroded samples together with atomic absorption analysis of corrosion products are also presented.
机译：采用电化学噪声技术（ENT），电势极化曲线和失重法（WLM），研究了SS-316L在50％（重量）的LiBr-H 2 O溶液中的腐蚀评价。 25、50、60、70和80°C。在15天内每四个小时获取一次电流和潜在的噪声信号。这些数据在时域和频域中进行了分析。进行统计分析以获得定位指数和电阻噪声。同样，使用斯特恩-盖瑞方程和法拉第定律确定腐蚀速率。从ENT和WLM获得的腐蚀速率的比较显示出与温度相同的趋势，但是看到的差异为一个数量级。 ENT和WLM的腐蚀速率结果与抗噪声性结果吻合良好。还介绍了腐蚀样品的SEM分析以及腐蚀产物的原子吸收分析。

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