Study on corrosion resistance and roughness of micro-plasma oxidation ceramic coatings on Ti alloy by EIS technique

Evaluation of micromechanical behaviour of plasma electrolytic oxidation (PEO) coatings on Ti–6Al–4V

“…There has been some preliminary work in the area [17,18], but there are often problems of brittleness and relatively high levels of coarse porosity, possibly associated with gas evolution. There is nevertheless considerable interest in their development, particularly in the context of biomedical applications [19][20][21][22][23], and there have also been some reports concerning their microstructure [24] and their resistance to corrosion and wear [25][26][27][28]. Currently, they are not expected to enhance the wear resistance of the substrate, which is, of course, generally expected to be superior to that of Al and Mg alloys in any event.…”

Corrosion resistance of TiO2 films grown on stainless steel by atomic layer deposition

“…One of the most common routes to this end is to deposit a protective coating onto the metal surface [2,3]. Ceramic coatings have attracted much attention in this field for their higher resistance to heat, corrosion, and wear than metals [4][5][6][7]. TiO 2 has been the focus of extensive research in recent years for its versatile applications in self-cleaning surfaces, sterilization, air-and water-purifications, solar cells, and bio-compatible devices etc [8][9][10].…”

Corrosion behavior of anodic oxidized TiO2 film in seawater

“…The systemic error was 2%−7% with the fitted results shown in Table 1. In Fig.5, R s represents the solution resistance; CPE dl represents the double layer capacity at the solution/TiO 2 film interface at low frequency, which is commonly employed to replace the pure capacitance (Yao et al, 2007) in view of the porous/rough nature of the electrode in the electrochemical process; R ct represents the charge transfer resistance processes occurring within the pores of oxide film and on the surface; C c and R c in parallel are required to describe the complicated titanium substrate/ TiO 2 film interface occuring at high frequency. As shown in Table 1, R s always kept a stable value, which indicates a steady three-electrode system.…”