Corrosion behaviour of biomedical Ti under simulated inflammation: Exploring the relevance of grain refinement and crystallographic texture

Sotniczuk, Agata; Chromiński, Witold; Adamczyk‐Cieślak, Bogusława; Pisarek, Marcin; Garbacz, Halina

doi:10.1016/j.corsci.2022.110238

Cited by 27 publications

(18 citation statements)

References 75 publications

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“…The composition and structure of the oxide films formed on the studied alloys after the PP test in the PBS solution were analyzed by the XPS technique. Ti 2p spectra in Figure indicate that the oxide layer formed on all the studied alloys sequentially consisted of TiO 2 , Ti 2 O 3 , and TiO . Notably, only TiO 2 was detected for the Ti6Al4V-5Cu UG alloy when the sputtering time increased to 30 s, while the obvious stoichiometry (Ti 2 O 3 and TiO) emerged beneath the outer TiO 2 layers on Ti6Al4V CG and Ti6Al4V-5Cu CG alloys.…”

Section: Resultsmentioning

confidence: 91%

“…Ti 2p spectra in Figure 3 indicate that the oxide layer formed on all the studied alloys sequentially consisted of TiO 2 , Ti 2 O 3 , and TiO. 49 Notably, only TiO 2 was detected for the Ti6Al4V-5Cu UG alloy when the sputtering time increased to 30 s, while the obvious stoichiometry (Ti 2 O 3 and TiO) emerged beneath the outer TiO 2 layers on Ti6Al4V CG and Ti6Al4V-5Cu CG alloys. According to the Gibbs-free energy function diagram, 50 TiO 2 has the highest stability with the lowest standard free energy among all the titanium oxides.…”

Section: Xps Analysis Of the Passive Filmmentioning

confidence: 95%

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Corrosion Behavior and Bio-Functions of the Ultrafine-Grained Ti6Al4V-5Cu Alloy with a Dual-Phase Honeycomb Shell Structure in Simulated Body Fluid

Liu

Siddiqui

et al. 2023

ACS Biomater. Sci. Eng.

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Titanium alloys are widely used in biomedical applications. However, cases of implant failure due to fatigue fracture and bacterial infection are common. In addition, implants are susceptible to metal ions (Al, V) released by long-term exposure to human body fluids, which causes neuropathy, mental disorders, and other diseases. Thus, development of novel materials to achieve longterm safety of implants is currently a research hotspot. Recently, our research group has developed an ultrafine-grained Ti6Al4V-5Cu alloy with a unique "dual-phase honeycomb shell" (DPHS) structure, which possesses high fatigue strength and stability. This study further affirmed its higher corrosion behavior, antibacterial properties, and cytocompatibility compared to the coarse-grained Ti6Al4V and Ti6Al4V-5Cu alloys. The ultrafine-grained structure of Ti6Al4V-5Cu having DPHS increased the proportion of phases (Cu-rich phases, β-phase, and Ti 2 Cu intermetallic phase) with a lower surface potential. It was observed that the developed microstructure was conducive to a stable configuration of the oxide (passive) layer on the alloy surface. In addition, the low-phase interfacial energies of the ultrafine-grained structure with DPHS even facilitated the improvement of the denseness of the protective passive film and eventually enhanced the corrosion behavior. Besides, the fine-Cu-rich phases and the micro-galvanic couples formed between them and the matrix significantly increased the contact frequency of bacteria, thus increasing the contact sterilization efficiency of the ultrafine-grained Ti6Al4V-5Cu alloy. These results showed that the new ultrafine-grained Ti6Al4V-5Cu alloy has excellent corrosion resistance and biological functions for clinical application.

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Section: Resultsmentioning

confidence: 91%

Section: Xps Analysis Of the Passive Filmmentioning

confidence: 95%

Corrosion Behavior and Bio-Functions of the Ultrafine-Grained Ti6Al4V-5Cu Alloy with a Dual-Phase Honeycomb Shell Structure in Simulated Body Fluid

Liu

Siddiqui

et al. 2023

ACS Biomater. Sci. Eng.

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“…6. In this circuit, R s is solution resistance, R f is resistance of passive film, and CPE is constant phase element representing the capacitance of passive film [47]. CPE element can be described using two parameters: Q and n,…”

Section: E / V(vs Sce) I / (A•cmmentioning

confidence: 99%

Effect of nitrogen content on corrosion behavior of a high nitrogen austenitic stainless steel

Qiao

Gao

Chen

et al. 2023

Preprint

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A series of electrochemical tests combined with scanning electron microscopy (SEM), electron backscatter diffraction (EBSD) and X-ray photoelectron spectroscopy (XPS) were used to study the effect of nitrogen content on the composition and structure of passive film of a high nitrogen austenitic stainless steel (HNSS) in 0.5 mol/L sodium chloride solution and its corrosion performance. The results showed that the proportion of low-angle grain boundaries in the HNSS increased with the increase of nitrogen content. Electrochemical results suggested that the HNSS with a higher nitrogen content had a lower corrosion current density in 0.5 mol/L NaCl solution and thus a lower corrosion rate. This was attributable to the formation of higher proportion of stable oxides (i.e., Cr2O3) in the passive film, accelerating the passivation process and promoting the corrosion resistance.

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“…This improvement in corrosion resistance for TNTZ CRA with longer immersion times can be attributed to the presence of Nb and Ta in the alloy, both of which have higher valences than Ti. [47,48] According to literature, [47] the incorporation of Nb 5þ or Ta 5þ cations into the Ti oxide structure contributes to a decrease in the concentration of anion vacancies. These stoichiometric defects arise due to the presence of titanium suboxides, specifically those with lower titanium oxidation states such as Ti 3þ and Ti 2þ .…”

Section: Electrochemical Corrosionmentioning

confidence: 99%

Electrochemical Corrosion Behavior in Simulated Body Fluid of a Metastable β‐Type Ti29Nb13Ta4.6Zr Biomedical Alloy with Improved Mechanical Properties

Silva,

Viana,

Silva

et al. 2023

Adv Eng Mater

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In this study, the mechanical properties and corrosion behavior in simulated body fluid of the β‐type Ti29Nb13Ta4.6Zr alloy (TNTZ) were investigated and compared to Ti6Al4V alloy. The samples were obtained from the solution treated (ST) and water quenched TNTZ bars. Following quenching, the bars were cold rolled aged (CRA) at 673 K for 20 min in order to reach a desired combination of high yield strength and low elastic modulus. The corrosion tests were conducted using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) during a long period of immersion in physiological Ringer’s solution (up to 144 h), and the mechanical behavior were assessed through uniaxial tensile tests. The results showed that both TNTZ ST and CRA conditions had lower Young’s moduli than Ti6Al4V. However, with CRA treatment the alloy is significantly strengthened due to a homogeneous precipitation of nanometer‐sized α phase with lenticular morphology in the β matrix. Potentiodynamic polarization and EIS results revealed that both TNTZ CRA and Ti6Al4V passivate under testing conditions, and the passive current density is very low, providing corrosion resistance in the potential range studied. The EIS results also revealed that the passive film formed on the surface of both materials is highly corrosion resistant.This article is protected by copyright. All rights reserved.

show abstract

Corrosion behaviour of biomedical Ti under simulated inflammation: Exploring the relevance of grain refinement and crystallographic texture

Cited by 27 publications

References 75 publications

Corrosion Behavior and Bio-Functions of the Ultrafine-Grained Ti6Al4V-5Cu Alloy with a Dual-Phase Honeycomb Shell Structure in Simulated Body Fluid

Corrosion Behavior and Bio-Functions of the Ultrafine-Grained Ti6Al4V-5Cu Alloy with a Dual-Phase Honeycomb Shell Structure in Simulated Body Fluid

Effect of nitrogen content on corrosion behavior of a high nitrogen austenitic stainless steel

Electrochemical Corrosion Behavior in Simulated Body Fluid of a Metastable β‐Type Ti29Nb13Ta4.6Zr Biomedical Alloy with Improved Mechanical Properties

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