Surface analysis and corrosion resistance of a new titanium base alloy in simulated body fluids

Niobium addition enhancing the corrosion resistance of nanocrystalline Ti5Si3 coating in H2SO4 solution

“…It is worth noting that niobium (Nb) possesses high passivating ability in diverse aqueous environments [53][54][55] and has been selected, for example, as an alloying element to improve the corrosion resistance of titanium alloys [22,56,57]. In the present work, Nb was added to the Ti 5 Si 3 nanocrystalline coating as an alloying element, which markedly improved the corrosion resistance of the resultant coatings, as shown by the results of potentiodynamic polarization and EIS measurements.…”

“…The Ti 2p spectrum (Fig. 12b) of the Ti 5 Si 3 coating presents one spin orbit doublets of Ti 2p 1/2 and Ti 2p 3/2 with respective binding energies of 464.3 and 458.6 eV, corresponding to TiO 2 [56]. It is worth mentioning that the binding energies of the Ti 2p peaks for the Ti 50.0 Nb 12.5 Si 37.5 coating shift slightly towards the lower values compared with that of the Ti 5 Si 3 coating, presumably owing to the incorporation of Nb into the TiO 2 lattice [60].…”

Correlation of the nanostructure of the anodic layers fabricated on Ti13Nb13Zr with the electrochemical impedance response

“…In this sense, the b-titanium alloys, such as Ti-xZr, Ti-xNb-yZr-zTa, Ti-xNb-yTa and Ti-xNb-yZr, have been evaluated from corrosion viewpoint in different solutions. The results pointed out that these titanium alloys may show higher corrosion resistance than CP titanium and Ti6Al4V alloy due to the growth of a more compact and stable native passive film composed of a mixture of protective oxides (TiO 2 , Nb 2 O 5 , ZrO 2 and Ta 2 O 5 ) [15][16][17][18][19][20][21] The aim of this study is to analyze the corrosion behavior of anodic films grown on Ti13Nb13Zr in a fluoride containing solution. The samples were fully characterized by scanning electron microscope (SEM), Rutherford backscattering spectroscopy (RBS), potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) to elucidate their electrochemical behavior in a phosphate buffered saline solution (PBS).…”

Effect of added ethanol in ethylene glycol–NaCl electrolyte on titanium electropolishing

“…Ti (Z=22), as well as its alloys, has a low density (4.54 g/cm 3 ), high melting point (1,688 o C) and high corrosion resistance, and it is a transition metal [1][2][3]. Even though Ti is known to be expensive and difficult to machine, it has recently been applied in many fields as an environmentally friendly and superior biocompatibiliy material.…”