Characterisation of corrosion properties of Ti–Nb–Cu alloy foam by electrochemical impedance spectroscopy method

Mutlu, İlven; Yeniyol, Sinem; Oktay, Enver

doi:10.1179/1743278215y.0000000037

Cited by 12 publications

(6 citation statements)

References 43 publications

(67 reference statements)

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“…While Mutlu and Oktay in another study illustrated the decreasing in polarization resistance with increasing Cu content of the Ti-Nb-Cu alloy and the passive layer was a barrier for dissolution and improved the resistance through the charge transfer at the surface/medium interface with low Cu content, while the higher content produce {Ti}_{2}Cu phase which induce corrosion rates [23]. Also Mutlu et al in another study showed that increasing the Cu content for Ti-Nb-Cu alloys led to get higher corrosion current density and more negative corrosion potential [24].…”

Section: Corrosion Behaviormentioning

confidence: 97%

Corrosion Behavior and Wear Resistance for Ti-18Nb-xCu Alloys

Demirtaş

Riyadh

Anaee

2022

Preprint

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Corrosion behavior and wear resistance were investigated for three prepared alloys (Ti-18Nb-xCu) by powder metallurgy method with adding three weight percents of Cu (5, 7 and 9 wt %). The wear results show that Ti-18Nb-7Cu alloy has the lowest wear rate due to hard Ti2Cu phase which mostly formed in the percent of 7%Cu. While the corrosion behavior was different due to the variation in formed cathodic and anodic sites and the formed phase led to increasing the formation of micro-galvanic cells on the alloys surface. AFM analysis was applied to show the surface topography and measure surface roughness, the results indicated that Ti alloy with 7% Cu had the highest surface roughness.

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Section: Corrosion Behaviormentioning

confidence: 97%

Corrosion Behavior and Wear Resistance for Ti-18Nb-xCu Alloys

Demirtaş

Riyadh

Anaee

2022

Preprint

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“…Although, most of them are studied in physiological solution, few studies are carried out in sea water, acid, and other solutions. The corrosion behavior of most Ti alloys in physiological solution is generally similar . Spontaneous passivation of these alloys in simulated body fluid is noted for most of these alloys.…”

Section: Introductionmentioning

confidence: 93%

“…Over the last decade, an impressive amount of literatures on corrosion of Ti alloys are documented . Although, most of them are studied in physiological solution, few studies are carried out in sea water, acid, and other solutions.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical corrosion behavior of Ti‐10V‐2Fe‐3Al in different corrosive media

Arya¹,

Bhattacharjee

Roy

2018

Materials & Corrosion

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The electrochemical corrosion behavior of Ti‐10V‐2Fe‐3Al in different corrosive media namely, artificial sea water solution, Hank's solution, 0.5 M sulfuric acid, and 0.5 M hydrochloric acid solution has been investigated. Corrosion rates are evaluated using open circuit potential, current time transient, Tafel extrapolation potentiodynamic polarization curves, and electrochemical impedance spectroscopy. The results show that this alloy has lower corrosion rate in alkaline solution due to formation of thick, compact, and stable passive film. In acid solution corrosion rate is higher as the passive film is less compact, porous, and unstable. In general, the material is more active in C1− ion containing solution.

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“…A flaw free oxide film on titanium should be resistant to hydrogen. For absorption of hydrogen from various chemical and biomedical environments, 74–80 it is essential to undergo redox transformations (Ti 4+ + Ti 3+ ) inside the oxide or the making of ‘hydrogen windows’ at intermetallic sites. This is a prerequisite for the threshold potential of <–0.7 V (SCE) specified by Thomas and Schutz and presented in electrochemical measurements by Vezvaie et al 81 (see Figure 3(a)).…”

Section: Forms Of Hydrogen-induced Damagesmentioning

confidence: 99%

A critical appraisal of laser peening and its impact on hydrogen embrittlement of titanium alloys

Rajyalakshmi

Swaroop

2019

Proceedings of the Institution of Mechanical Engineers, Part B:

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Many efforts have been made to understand the effects of hydrogen on titanium alloys, resulting in an abundance of theoretical models and papers. Titanium alloys are crucial advanced materials that provide an excellent combination of a high strength-to-weight ratio and good corrosion behaviour even though they are reasonable to corrosion attack. Titanium alloys are susceptible to hydrogen embrittlement when comes into contact with hydrogen, and galvanic pair with an active metal current, or the pH is greater than 12 or less than 3 or an impressed current. In view of the fact that hydrogen behaves differently with α and β phases, hydrogen degradation may vary markedly in titanium alloys. Hydrogen diminishes the corrosion and erosion resistance and fatigue life of in-service titanium components. A laser peening or laser shock peening is a novel technique for making the metal surfaces and sub-layers densify. It evokes that laser shock peening adoption results in yielding and plastic deformation, thereby creating high compressive residual stresses extending below the surface of the material which is desirable for hydrogen embrittlement resistance and reduction of crack initiation and growth of the component. This article is a review of information relating hydrogen embrittlement of titanium alloys and surface modification technique which influence the strength potential of titanium alloys.

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Characterisation of corrosion properties of Ti–Nb–Cu alloy foam by electrochemical impedance spectroscopy method

Cited by 12 publications

References 43 publications

Corrosion Behavior and Wear Resistance for Ti-18Nb-xCu Alloys

Corrosion Behavior and Wear Resistance for Ti-18Nb-xCu Alloys

Electrochemical corrosion behavior of Ti‐10V‐2Fe‐3Al in different corrosive media

A critical appraisal of laser peening and its impact on hydrogen embrittlement of titanium alloys

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