Abstract The effect of high temperature on the corrosion behaviour and passive film composition of 316 L stainless steel in high H2S-containing environments was investigated. The results showed that high temperature promoted the formation of thicker but more defective passive film. The dominant composition of passive films converted from Fe, Cr to Ni, Fe as the temperature increased from 30 °C to 130 °C, due to the decreased stability of Cr at high temperature. Besides, high temperature led to the higher content of sulfides in the passive film, attributed to the enhanced adsorption of S species.

中文翻译：

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高温对316L不锈钢在高含H2S环境下腐蚀行为及钝化膜成分的影响

摘要 研究了高温对316 L 不锈钢在高含H2S 环境中腐蚀行为和钝化膜成分的影响。结果表明，高温促进了更厚但缺陷更多的钝化膜的形成。随着温度从 30 °C 升高到 130 °C，由于 Cr 在高温下的稳定性降低，钝化膜的主要成分从 Fe、Cr 转变为 Ni、Fe。此外，高温导致钝化膜中硫化物的含量更高，这归因于 S 物种的吸附增强。