Abstract
The current study presents for the first time the tribocorrosion behavior of AISI 304L stainless steel in sulfuric acid medium (0.5 M) in the absence and presence of Populus nigra var. italica propolis (PP) essential oil. The results show that in the presence of 600 ppm of PP essential oil a low value of friction coefficient and the dissipated energy are observed, which suggest that the addition of studied essential oil (600 ppm) gives a lubricant aspect to H2SO4 environment. By using the scanning electron microscopy and energy-dispersive X-rays (SEM–EDX), it is clear that the surface is remarkably improved in the presence of P. nigra var. italica propolis essential oil compared to the one exposed to the acid medium without essential oil. From the proprieties of P. nigra var. italica propolis essential oil and the obtained results, it can be suggested that this essential oil is new natural substances that can be used against material wear in aggressive solutions in the presence of a mechanical effect.
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