Corrosion Behavior of the Ti–6Al–4V Alloy in Sulfate-Reducing Bacteria Solution

Zheng, Xingwei; Xin, Zhuang; Lei, Yanhua; Chu, Zhenhua; Xu, Jinliang; Gao, Lin; Sun, Xiaoming

doi:10.3390/coatings10010024

Cited by 13 publications

(7 citation statements)

References 32 publications

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“…These latter results suggested that the bacteria had entered the stationary phase and that the biofilm on the surface of the alloy had matured. Similar results were reported by Zheng et al [53] in a study that was carried out with sulfate-reducing bacteria; similar to our results, this group reported an increase in R ct at the beginning of the monitoring period followed by a progressive decline at the end of the experiment. Similar behaviour was reported by Calvillo and Galicia [16], who presented impedance diagrams that illustrate times for adherence and attachment of Shewanella sp.…”

Section: Resultssupporting

confidence: 93%

Formation ofEscherichia colibiofilms on the titanium alloy Ti6Al4V: analysis of the interface and assessment of corrosion

Calvillo

Galicia

Malpica

et al. 2021

Corrosion Engineering, Science and Technology

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Bacterial biofilm that formed when the Ti6Al4 V alloy was exposed to Escherichia coli, was monitored over 48 h by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PP) to estimate the rate of corrosion and the influence of the bacteria on this process. High-resolution scanning electron microscopy was used to examine bacterial growth, colonisation and the process of biofilm formation. Our results highlighted several critical points regarding the impact of E. coli and its use as a model for monitoring biofilm formation and the biocorrosion of this alloy. Impedance spectra revealed the formation of a compact passive film after 48-hour exposure to an aging culture of E. coli in chloride media. The formation of the biofilm influenced the resistance to corrosion. Biofilm impedance parameters that emerged over time corresponded directly to the properties of a typical exponential bacterial growth curve determined by ultraviolet-visible light spectroscopy.

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Section: Resultssupporting

confidence: 93%

Formation ofEscherichia colibiofilms on the titanium alloy Ti6Al4V: analysis of the interface and assessment of corrosion

Calvillo

Galicia

Malpica

et al. 2021

Corrosion Engineering, Science and Technology

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“…They found that the initiation and propagation of SRB-induced pitting corrosion was attributed to the generation of titanium sulfide located in micropits. Zheng et al also indicated that the presence of sulfur accelerated the breakdown of the passive film on Ti-6Al-4V, when exposed to an SRB-containing medium. Yang et al reported the passivation properties of Ti alloys in seawater containing sulfides and suggested that when the sulfide concentration in simulated seawater is greater than 2 mM, the protective capability of the passive film is significantly reduced because of an increase in corrosion productions such as TiOS and TiS 2 .…”

Section: Introductionmentioning

confidence: 98%

Dissecting Anticorrosion and Antimicrobial Potency of an Ag Nanoparticle/NbC Nanocomposite Coating in a Marine Environment Containing Sulfate-Reducing Bacteria

Hao

Peng

et al. 2022

ACS EST Eng.

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To mitigate the microbiologically influenced corrosion of metallic components serving in marine environments, an innovative Ag nanoparticle (AgNP)/NbC nanocomposite coating was synthesized using a double glow discharge plasma method. The coating was composed of Ag nanoparticles together with NbC nanocrystals embedded in an amorphous carbon (a-C) matrix. The incorporation of Ag into the NbC coating played a significant role in determining both the grain size and crystallographic texture of the NbC phase, as well as the bonding state of the carbon species and the surface morphology of the coating. Following immersion in sulfate-reducing bacteria (SRB)-inoculated artificial seawater, the planktonic SRB cell count for the AgNPs/NbC nanocomposite coating was found to be two and three orders of magnitude lower than those of the Ag-free NbC coating and bare Ti-6Al-4V, respectively. The electrochemical corrosion behavior of the AgNPs/NbC nanocomposite coating was evaluated and compared to the Ag-free NbC coating and bare Ti-6Al-4V in SRB-inoculated artificial seawater by using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). The semiconducting properties of the oxide film grown on the nanocomposite coating were drawn from Mott–Schottky analysis. The results showed that Ag additions improved the microbiologically influenced corrosion (MIC) resistance of the NbC coating and led to the transformation of the electronic structure of the oxide film from an n-type semiconductor to a p–n heterojunction structure.

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“…Therefore, it is widely used in marine engineering equipment such as marine oil and gas exploitation, shipbuilding, nuclear power engineering, seawater desalination equipment, etc . However, in the metabolic process of anaerobic sulfate reducing bacteria (SRB) and the industrial process containing reductive sulfide, − the integrity of the titanium passive film may be damaged and cannot be recovered quickly, which poses a major threat to the structural durability of titanium-based equipment.…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic and Simulation Insights into the Corrosion Mechanism of Sulfite on Titanium

Meng

Yan

et al. 2022

J. Phys. Chem. B

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Ion adsorption and hydrogen bond (HB) network reconstruction in electric double layer (EDL) have a profound impact on the interface properties. The microstructure in the bulk phase of 1.00–21.30 wt.% Na2SO3 aqueous solutions are investigated by X-ray scattering, confocal Raman spectroscopy, and classical molecular dynamics. The electronic properties of SO3 2‑ adsorption and the geometric structure of the HB network in the EDL at the titanium TiO2(101) surface are studied by density functional theory (DFT) and classical molecular dynamics. The SO3 2– strongly weakens the fully hydrogen-bonded water (FHW) and transforms it into partial hydrogen-bonded water (PHW). The HB transformation index (HBTI = PHW/FHW) shows a linear relationship with the mass fraction of Na2SO3. The TiOb-parallel adsorption configuration of SO3 2‑ enhances the ionicity of the Ob–Ti6 bond, resulting in the formation of oxygen vacancies at the titanium passive film surface. Besides, SO3 2‑ and Na+ are enriched and thermodynamic supersaturated in the inner Helmholtz layer (IHL), and the ions are diluted in the outer Helmholtz layer (OHL). The diffusion coefficient of SO3 2‑ and water molecules in EDL decreases seriously, which is easy to causes salt scaling on the surface of titanium passive film. This work provides evidence for the destruction of titanium passive film by SO3 2‑.

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Corrosion Behavior of the Ti–6Al–4V Alloy in Sulfate-Reducing Bacteria Solution

Cited by 13 publications

References 32 publications

Formation ofEscherichia colibiofilms on the titanium alloy Ti6Al4V: analysis of the interface and assessment of corrosion

Formation ofEscherichia colibiofilms on the titanium alloy Ti6Al4V: analysis of the interface and assessment of corrosion

Dissecting Anticorrosion and Antimicrobial Potency of an Ag Nanoparticle/NbC Nanocomposite Coating in a Marine Environment Containing Sulfate-Reducing Bacteria

Spectroscopic and Simulation Insights into the Corrosion Mechanism of Sulfite on Titanium

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