To reduce the use of synthetic compounds as wear-corrosion inhibitors, and substitute them with new ecological compounds, we are interested in evaluating the effect of the essential oils against the tribocorrosion. The present paper describes the effect of adding Thymus zygis subsp. gracilis (TZ) essential oil (3 g·L −1 ) on AISI 304L tribocorrosion behavior in 0.5 M H 2 SO 4 . As a result, the addition of this essential oil decreases the tribocorrosion rate [E (%) = 84.38], the value of friction coefficient, and the energy dissipated during sliding wear, in comparison to those recorded for dry environment and 0.5 M H 2 SO 4 . In addition, the essential oil improves the surface morphology of metal as shown by the scanning electron microscopy and energy dispersive X-ray and the three-dimensional optical profiler analysis. In addition, the modeling approaches of experimental results, involving the density functional theory, the electrostatic potential, and the Monte Carlo methods, show that thymol (42.5% of TZ oil) is the best corrosion and tribocorrosion inhibitor that adhered to the stainless steel surface and offers a greater coverage area to block the metal wear-corrosion. According to the obtained results, the TZ essential oil can be used in the food industry to prevent the wear of materials.

中文翻译：

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不锈钢在硫酸中在 Thymus zygis subsp. 存在下的摩擦学行为。gracilis 精油：实验和量子化学研究

为了减少使用合成化合物作为磨损腐蚀抑制剂，并用新的生态化合物代替它们，我们有兴趣评估精油对摩擦腐蚀的影响。本论文描述了添加 Thymus zygis subsp. 的效果。gracilis (TZ) 精油 (3 g·L -1 ) 在 0.5 MH 2 SO 4 中对 AISI 304L 摩擦腐蚀行为的影响。因此，与干燥环境和 0.5 MH 2 SO 记录的结果相比，添加这种精油可降低摩擦腐蚀率 [E (%) = 84.38]、摩擦系数值和滑动磨损过程中耗散的能量4 . 此外，如扫描电子显微镜和能量色散 X 射线以及三维光学轮廓仪分析所示，精油改善了金属的表面形态。此外，实验结果的建模方法，包括密度泛函理论、静电势和蒙特卡罗方法，表明百里酚（TZ 油的 42.5%）是最好的腐蚀和摩擦腐蚀抑制剂，附着在不锈钢表面，并提供更大的覆盖面积来阻挡金属磨损腐蚀。根据所得结果，TZ精油可用于食品工业，防止材料磨损。