Abstract Extract of Brassica campestris was tested as potential corrosion inhibitor for Cor-Ten steel in NaCl and acidic solutions, simulating a marine and an urban-industrial environment, respectively. Potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) were performed both in absence and in presence of the extract at room temperature. The surface chemical analysis was investigated by X-ray Photoemission Spectroscopy (XPS), before and after corrosion. Electrochemical results demonstrated that a very small concentration of Brassica campestris extracts can inhibit Cor-Ten corrosion in NaCl solution (inhibition efficiency of 80–84%) better than in acidic solutions. Surface analysis results confirmed these good results.

中文翻译：

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油菜“绿色”提取物对耐候钢腐蚀的抑制作用

摘要 油菜提取物在 NaCl 和酸性溶液中作为 Cor-Ten 钢的潜在腐蚀抑制剂进行了测试，分别模拟了海洋和城市工业环境。在室温下在提取物不存在和存在的情况下进行动电位极化和电化学阻抗谱 (EIS)。在腐蚀之前和之后，通过 X 射线光电发射光谱法 (XPS) 研究表面化学分析。电化学结果表明，与酸性溶液相比，极少量的油菜提取物可以更好地抑制 NaCl 溶液中的 Cor-Ten 腐蚀（抑制效率为 80-84%）。表面分析结果证实了这些良好的结果。