In this study, the effect of yttria and benzotriazole doping on abrasion/corrosion properties of alumina-based nanostructured films has been investigated. Single-component alumina, double-component alumina-yttria, and triple-component alumina-yttria-benzotriazole ceramic-based films have been layer-deposited over St52 steel surface by the sol-gel process in order to improve the abrasion and corrosion behaviour of this steel. Afterwards, phase analysis, morphology, and topography of these films have been carried out respectively by Grazing Incidence X-ray Diffraction (GIXRD), Field Emission Scanning Electron Microscopy (FE-SEM), and Atomic Force Microscopy (AFM). Moreover, in order to investigate elemental distribution in layer-deposited films, Energy Dispersive Spectroscopy (EDS) and MAP analysis were performed. In order to investigate the abrasion behaviour of films and substrates under investigation, a ball-on-disc method was utilized. Also, the corrosion behaviour of under-investigation films and substrate were studied using electrochemical impedance spectroscopy and potentiodynamic polarization for 1, 48, and 96 h of immersion in 3.5 wt%NaCl solution. GIXRD results revealed the amorphous nature of the films and the absence of formation of crystalline structure. AFM and FE-SEM observations revealed intactness of double-component alumina-yttria and alumina-yttria-benzotriazole films in comparison with single component alumina film. Also as per the results of electrochemical tests, it was observed that the presence of yttria and benzotriazole in alumina ceramic-based films results in the severe increase in the corrosion resistance of such films by activation of self-healing reactions and formation of passive layers. Moreover, the abrasion test results showed that doping of yttria and benzotriazole results in increasing abrasion resistance and reducing friction coefficient in alumina ceramic-based films.