Electrochemical Corrosion and Impedance Studies of Porous Ti–xNb–Ag Alloy in Physiological Solution

Shivaram, M. J.; Arya, Shashi Bhushan; Nayak, Jagannath; Panigrahi, Bharat B.

doi:10.1007/s12666-020-01904-0

Cited by 9 publications

(4 citation statements)

References 29 publications

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“…The micro-hardness value of sample S2 is highest compared to other samples. The addition of niobium reduces the sintered density, and similar behavior is reported when niobium is mixed with Ag in titanium [28]. The inclusion of copper amplifies the micro-hardness of titanium [19].…”

Section: Physical and Mechanical Propertiessupporting

confidence: 59%

“…The average lattice strain of the Ti 2 Cu phase is lowest in S3 compared to other phases; the lower value of lattice strain shifted the E corr value to the positive side [29]. The Ti 2 Cu is known for good anticorrosive properties; also, it is believed that with increasing average grain size, the corrosion susceptibility of copper decreases in the NaCl [27,28]. Both i corr and corrosion rate increase from S1 to S2 and suddenly decreases from S2 to S4.…”

Section: Corrosion Propertiesmentioning

confidence: 98%

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Microstructure, mechanical strength, chemical resistance, and antibacterial behavior of Ti–5Cu–x%Nb biomedical alloy

Pandey

Gautam²,

Behera³

2022

Biomed. Mater.

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Titanium-based biomedical alloys are susceptible as they are used as a substitute for human bone. In this study, titanium alloy, Ti-5Cu-x%Nb (x= 0, 5,10,15) (%wt) was developed by powder metallurgy route. The effect of alloying niobium with Ti-5Cu alloy and its effect on the microstructure, mechanical strength, corrosion resistance, and antibacterial properties have been evaluated. The results show that the sintered alloy has both α-Ti and Ti2Cu phases. With increasing niobium content in the alloy, β-Ti was also detected. Additionally, it was found that the micro-hardness and compressive strength of the studied alloy was better than commercially pure titanium (cpTi) while the young's modulus was lower compared to cpTi. These properties are highly favorable for using this alloy to replicate the human cortical bone. The alloy was also tested for anticorrosive property in Ringer's solution. The antibacterial activity was also examined for Staphylococcus aureus and Escherichia coli bacteria. The alloy showed promising anticorrosive and antibacterial ability.

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Section: Physical and Mechanical Propertiessupporting

confidence: 59%

Section: Corrosion Propertiesmentioning

confidence: 98%

Microstructure, mechanical strength, chemical resistance, and antibacterial behavior of Ti–5Cu–x%Nb biomedical alloy

Pandey

Gautam²,

Behera³

2022

Biomed. Mater.

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“…Materials 2021, 14 To better explain the situation, the time dependences of the parameters depicting the barriers and the porous layer on the CP Ti and Ti-6Al-4V alloys were observed separately (Figure 8).…”

Section: Solutionmentioning

confidence: 99%

“…[6]. Therefore, many research types were performed to understand better the corrosion behavior of titanium and its alloys in different simulated body fluids [7][8][9][10][11][12][13][14]. The high corrosion resistance of titanium and its alloys is due to the formation of stable and protective oxide layer (mainly consisting of TiO 2 ) of a thickness of 2-6 nm.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Behaviour of Ti and Ti-6Al-4V Alloy in Phosphate Buffered Saline Solution

et al. 2021

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The electrochemical behavior of commercially pure titanium (CP Ti) and Ti-6Al-4V (Grade 5) alloy in phosphate buffered saline solution (PBS, pH = 7.4) at 37 °C (i.e., in simulated physiological solution in the human body) was examined using open circuit potential measurements, linear and potentiodynamic polarization and electrochemical impedance spectroscopy methods. After the impedance measurements and after potentiodynamic polarizationmeasurements, the surface of the samples was investigated by scanning electron microscopy, while the elemental composition of oxide film on the surface of each sample was determined by EDS analysis. The electrochemical and corrosion behavior of CP Ti and Ti-6Al-4V alloys is due to forming a two-layer model of surface oxide film, consisting of a thin barrier-type inner layer and a porous outer layer. The inner barrier layer mainly prevents corrosion of CP Ti and Ti-6Al-4V alloy, whose thickness and resistance increase sharply in the first few days of exposure to PBS solution. With longer exposure times to the PBS solution, the structure of the barrier layer subsequently settles, and its resistance increases further. Compared to Ti-6Al-4V alloy, CP Ti shows greater corrosion stability.

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Development and Characterization of Biomedical Porous Ti–20Nb–5Ag Alloy: Microstructure, Mechanical Properties, Surface Bioactivity and Cell Viability Studies

et al. 2021

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Electrochemical Corrosion and Impedance Studies of Porous Ti–xNb–Ag Alloy in Physiological Solution

Cited by 9 publications

References 29 publications

Microstructure, mechanical strength, chemical resistance, and antibacterial behavior of Ti–5Cu–x%Nb biomedical alloy

Microstructure, mechanical strength, chemical resistance, and antibacterial behavior of Ti–5Cu–x%Nb biomedical alloy

Electrochemical Behaviour of Ti and Ti-6Al-4V Alloy in Phosphate Buffered Saline Solution

Development and Characterization of Biomedical Porous Ti–20Nb–5Ag Alloy: Microstructure, Mechanical Properties, Surface Bioactivity and Cell Viability Studies

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