Comparison of the corrosion behavior of pure titanium and its alloys in fluoride-containing sulfuric acid

Wang, Z.B.; Hu, Hongxiang; Zheng, Yuan; Ke, Wei; Qiao, Yanxin

doi:10.1016/j.corsci.2015.11.003

Cited by 292 publications

(109 citation statements)

References 44 publications

Supporting

Mentioning

104

Contrasting

Unclassified

Order By: Relevance

“…In the equivalent circuits, R soln is the SBF solution resistance, R cp is the corrosion product resistance with constant phase element CPE cp , R coat is the coating resistance paralleled with constant phase element CPE coat , and R ct is the reaction resistance paralleled with constant phase element CPE ct . The use of a CPE was necessary due to the distribution of relaxation times resulting from heterogeneities at the electrode surface [55]. The impedance of the CPE is given by Equation (5) [56]: The fitting EIS results are listed in Table 3.…”

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 99%

Degradation Behavior of Micro-Arc Oxidized ZK60 Magnesium Alloy in a Simulated Body Fluid

Wang

Chen

et al. 2018

Metals

View full text Add to dashboard Cite

Bio-ceramic coatings were synthesized on ZK60 magnesium alloys by micro-arc oxidation (MAO). The degradation behavior of the ZK60 alloys with and without MAO coating in the simulated body fluid (SBF) was studied. The samples were characterized by means of scanning electron microscopy (SEM), laser scanning confocal microscopy (CLSM), and X-ray diffraction (XRD). Electrochemical impedance spectroscopy (EIS) was used to study the degradation behavior. The results showed that the porous MAO coating mainly consisted of MgO, Mg2SiO4, Mg3(PO4)2, and CaCO3. The pH values of both coated and uncoated samples increased over time. However, the pH values of the SBF for coated samples always maintained a lower level compared with those for the uncoated samples. Thereby, the coated samples showed a much lower degradation rate. After immersion in SBF for 5 days, corrosion product containing Ca and P was found on both samples, while the deposition was more active on the coated samples. The degradation models for the uncoated and coated samples in the SBF are also proposed and discussed.

show abstract

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 99%

Degradation Behavior of Micro-Arc Oxidized ZK60 Magnesium Alloy in a Simulated Body Fluid

Wang

Chen

et al. 2018

Metals

View full text Add to dashboard Cite

show abstract

“…Titanium and its alloys are widely used in aerospace [1,2], marine [3], chemical [4,5], and biomedical [6][7][8] fields due to their excellent mechanical properties, high corrosion resistance, and good biocompatibility. Their high corrosion resistance in aggressive environments is ensured by the formation of a compact and chemically-stable oxide film, mainly composed of titanium oxide, TiO 2 , which spontaneously covers the metal surface to protect the metal substrate [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Corrosion and Tensile Behaviors of Ti-4Al-2V-1Mo-1Fe and Ti-6Al-4V Titanium Alloys

Qiao

Wang

et al. 2019

Metals

View full text Add to dashboard Cite

X-ray diffraction (XRD), scanning electron microscope (SEM), immersion, electrochemical, and tensile tests were employed to analyze the phase constitution, microstructure, corrosion behaviors, and tensile properties of a Ti-6Al-4V alloy and a newly-developed low cost titanium alloy Ti-4Al-2V-1Mo-1Fe. The results showed that both the Ti-6Al-4V and Ti-4Al-2V-1Mo-1Fe alloys were composed of α and β phases. The volume fractions of β phase for these two alloys were 7.4% and 47.3%, respectively. The mass losses after 180-day immersion tests in 3.5 wt.% NaCl solution of these alloys were negligible. The corrosion resistance of the Ti-4Al-2V-1Mo-1Fe alloy was higher than that of the Ti-6Al-4V alloy. The tensile tests showed that the Ti-4Al-2V-1Mo-1Fe alloy presented a slightly higher strength but a lower ductility compared to the Ti-6Al-4V alloy.

show abstract

“…The dissolution of ion from substrate and subsequent reactions with solution results in an in situ growing coating. However, unlike carbon steel and magnesium, Ti substrates will not take part in the process due to the blocking of dense oxide layer, if the solution is not corrosive enough . To overcome the problem, we modified the traditional phosphorization by performing it under hydrothermal condition and successfully prepared PCC containing substrate elements on 316L SS and pure Ti .…”

Section: Introductionmentioning

confidence: 99%

Influences of Surface Finishes on Properties of Biological Zinc Phosphate Conversion Coating on Titanium

Shi

Zhu

Valanezhad

et al. 2018

Physica Status Solidi (a)

View full text Add to dashboard Cite

Chemically formed phosphate conversion coatings (PCC) usually have good adhesion strength due to in situ growth and have great potential for biomedical applications. However, the fabrication of PCC on titanium (Ti) metals has seldom been studied because inherent chemical inertia and oxide layer block the dissolving process. Previously, the authors successfully fabricate intact PCC on pure Ti by a novel hydrothermal phosphorization method, and the coating shows good adhesion. However, metallographically polished specimens are used only in order to eliminate the influences of surface topography. In this study, the feasibility of such method to be performed on sandpaper polished and acid‐etched pure Ti are studied. Results show that rough surface benefit the nucleation of PCC and refine the crystal size, whereas, a smooth surface allow sufficient growth of crystal grain resulting in a thicker coating with stronger adhesive strength. In spite of rough surface, PCC formation on acid‐etched Ti is depressed due to the existence of titanium hydride. All the coatings obviously improve corrosion resistance of Ti substrate. The cytotoxicity test suggests that the PCCs present no adverse effects on L‐929 cells and has a cytotoxicity ranking of 0–I grade. The study shows that the hydrothermal zinc phosphorization has a potential to be extensively used for Ti‐based implants with different surface finishes.

show abstract

Comparison of the corrosion behavior of pure titanium and its alloys in fluoride-containing sulfuric acid

Cited by 292 publications

References 44 publications

Degradation Behavior of Micro-Arc Oxidized ZK60 Magnesium Alloy in a Simulated Body Fluid

Degradation Behavior of Micro-Arc Oxidized ZK60 Magnesium Alloy in a Simulated Body Fluid

Corrosion and Tensile Behaviors of Ti-4Al-2V-1Mo-1Fe and Ti-6Al-4V Titanium Alloys

Influences of Surface Finishes on Properties of Biological Zinc Phosphate Conversion Coating on Titanium

Contact Info

Product

Resources

About