【摘要】 系统研究了N-酰基肌氨酸、磷酸酯胺盐、烯基丁二酸半酯、咪唑啉烯基丁二酸盐4种典型腐蚀抑制剂的抗腐蚀性能，及其对润滑油高温氧化安定性和润滑性能的影响。试验结果表明，强极性的羧基酰胺基双官能团N-酰基肌氨酸型腐蚀抑制剂FY1和强极性的离子型磷酸酯胺盐型腐蚀抑制剂FY2对提高润滑油抗盐雾腐蚀性能和抗海水腐蚀性能具有显著效果，但添加FY2的润滑油抗磨减摩性能和高温氧化安定性较差。采用分子动力学模拟研究腐蚀抑制剂吸附行为与其抗腐蚀性能之间的关联，结果表明，腐蚀抑制剂的吸附能越低，其抗腐蚀性能越好。在实际应用中可以选用N-酰基肌氨酸型腐蚀抑制剂，既能应对苛刻的工作环境，又可提高润滑油的抗腐蚀性能。更多还原

【Abstract】 Four typical corrosion inhibitors—N-acylsarcosine, phosphate ester amine salt, alkenyl succinic semi-ester, and imidazoline alkenyl succinate—were systematically investigated regarding their corrosion inhibition performance and effects on the high-temperature oxidative stability and lubrication properties of lubricating oils. Experimental results demonstrated that the highly polar carboxamide bifunctional N-acylsarcosine-based corrosion inhibitor FY1 and ionic phosphate ester amine salt corrosion inhibitor FY2 with strong polarity exhibited significant efficacy in improving both salt spray corrosion resistance and seawater corrosion resistance of lubricating oils. However, lubricating oils formulated with FY2 showed inferior anti-friction and anti-wear performance and high-temperature oxidative stability. Molecular dynamics simulations were employed to study the correlation between adsorption behavior of corrosion inhibitors and their corrosion resistance. The results revealed that lower adsorption energy of inhibitors correlates with superior corrosion resistance. For practical applications, N-acylsarcosine-based corrosion inhibitors can be preferentially selected to effectively address harsh operating conditions while enhancing the corrosion resistance of lubricating oils.更多还原