Abstract The tribo electrochemical behavior of 2205 duplex stainless steel had been studied under acidic and neutral solutions with control of the dissolved dioxygen. The study focused on the oxide film formation using a galvanic technique approach implemented in a tribometer. Higher wear rates were measured in low pH and aerated solution. In low O2 concentration, a wear reduction was observed for each pH. Analysis of the passivation transients showed the pH influence on the oxide growth mechanism, irrespective of the O2 level. Temporal analysis of the transients confirmed the faster passivation of the wear track in acidic solution. In a controlled O2 environment, the nucleation and the oxide growth were slow down, irrespective of pH. The degradation rate was then correlated to the passivation kinetic and the aging of the passive film.

中文翻译：

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滑动状态下不锈钢的生长机制和再钝化动力学测定：溶液 pH 值和溶解氧浓度的作用

摘要 研究了2205双相不锈钢在控制溶解分子氧的酸性和中性溶液下的摩擦电化学行为。该研究的重点是使用在摩擦计中实施的电流技术方法形成氧化膜。在低 pH 值和充气溶液中测得更高的磨损率。在低 O2 浓度下，每个 pH 值都观察到磨损减少。钝化瞬变的分析表明，无论 O2 水平如何，pH 值都会影响氧化物生长机制。瞬态的时间分析证实了磨损轨迹在酸性溶液中的钝化速度更快。在受控的 O2 环境中，无论 pH 值如何，成核和氧化物生长都会减慢。然后将降解速率与钝化动力学和钝化膜的老化相关联。