Electrochemical study of growth behaviour of plasma electrolytic oxidation coating on Ti6Al4V: Effects of the additive

Effect of duty cycle on the crystallinity, pore size, surface roughness and corrosion resistance of the anodized surface on titanium

“…[64] The power index defines the degree of deviation from pure capacitive behavior (n=1) with less than 1 indicating a non-homogeneous interface surface. [62][63][64] The n value has also been reported to be inversely proportional to the interfacial roughness. [61][62][63] The anodized specimens were fit to a two-layer oxide circuit model ( Figure 10D) composed of an R s element, an outer porous oxide layer (CPE p and R p ), and an inner barrier layer at the titanium and oxide interface (CPE b , R b, Y o , and B).…”

“…[41,43] The CPE b term, noted as Q b in Figure 10C, represents a frequency independent non-ideal element associated with pseudo capacitive behavior of titanium oxides. [41,[61][62][63][64] The CPE term includes a pre-exponential admittance factor (Y o ) and a power index (n). [64] The power index defines the degree of deviation from pure capacitive behavior (n=1) with less than 1 indicating a non-homogeneous interface surface.…”

Corrosion resistance in simulated DMFC environment of plasma electrolytic oxidation coating prepared on aluminum alloy

“…It shows that the sample prepared at 60 minutes has the maximum values of R 1 and R 2 . Since R 1 represents the resistance of the residual electrolyte inside the pores, it is inversely proportional to the coating porosity [29]. This means that the coating prepared at 60 minutes has the smallest porosity, which should result from the smaller roughness and less crystal-like particles.…”

Analysis of Tribo-corrosion Properties of MAO/DLC Coatings Using a Duplex Process on Ti6Al4V Alloys

“…Their resistances according to temperature, friction, wear, and corrosion effects depend on the variety of coating methods and coating parameters [18][19][20]. In the literature, PVD method has been generally used for the DLC coating and the most commonly used magnetic field sputtering method has been identified [20][21][22][23]. Unbalanced magnetron sputtering method is one of the PVD methods.…”