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首页> 外文会议>International symposium on pits and pores II: Formation, properties, and significance for advanced materials >Electrochemical investigations of pitting events at different temperatures by current transients analysis
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Electrochemical investigations of pitting events at different temperatures by current transients analysis

机译：电流瞬变分析在不同温度下的蚀事件的电化学研究

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The analysis of current transient resulting from metastable pitting events is a useful method for the investigation of the mechanisms of localized corrosion. Statistical evaluation of the current transients data provides additional information about pitting corrosion events. In large scale electrochemical experiments, the noise of the passive current limits the detection of smaller metastable and pit initiation events. Improvements made in electrochemical data acquisition instrumentation and the appearance of novel methods of analysis, such as microelectrochemistry, now enables the analysis of the electrochemical current noise. The investigation of localized corrosion on stainless steels reveals that the current noise is influenced by numerous small pit initiation events due to the dissolution of non-metallic inclusions. This observation together with the statistical evaluation of the current transients help in clarifying mechanistic aspects, i.e. the effect of the temperature on pitting corrosion.
机译：由亚稳定的斑型事件产生的电流瞬态的分析是对局部腐蚀机制调查的有用方法。当前瞬态数据的统计评估提供有关点腐蚀事件的其他信息。在大规模的电化学实验中，无源电流的噪声限制了较小的亚稳态和坑启动事件的检测。电化学数据采集仪表的改进和新颖的分析方法的外观，如微电子技术，现在可以分析电化学电流噪声。对不锈钢局部腐蚀的研究表明，由于非金属夹杂物的溶解，目前噪声受到许多小坑启动事件的影响。该观察与电流瞬变的统计评估有助于澄清机械方面，即温度对蚀腐蚀的影响。

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